CN109274616B - Transceiver design method, aggregation node and sensing node - Google Patents
Transceiver design method, aggregation node and sensing node Download PDFInfo
- Publication number
- CN109274616B CN109274616B CN201810979892.2A CN201810979892A CN109274616B CN 109274616 B CN109274616 B CN 109274616B CN 201810979892 A CN201810979892 A CN 201810979892A CN 109274616 B CN109274616 B CN 109274616B
- Authority
- CN
- China
- Prior art keywords
- state information
- channel state
- vector
- receiver
- node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03248—Arrangements for operating in conjunction with other apparatus
- H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
Abstract
The invention discloses a transceiver design method, a sink node and a sensing node, wherein the method comprises the following steps: determining channel state information from each sensing node to a sink node; the broadcast receiver preprocesses the vector, so that each sensing node determines a transmitter vector according to the corresponding channel state information and the receiver preprocessing vector; determining first effective channel state information, wherein the first effective channel state information is determined according to first pilot signals simultaneously sent by all sensing nodes; determining second effective channel state information, wherein the second effective channel state information is determined according to second pilot signals simultaneously transmitted by all sensing nodes, and the second pilot signals are determined according to the channel state information and transmitter vectors; a target receiver vector is determined based on the first effective channel state information and the second effective channel state information. Compared with the signaling process that each sensor node sends pilot signals in sequence in the prior art, the scheme of the invention greatly reduces the time delay when the transceiver is designed.
Description
Technical Field
The invention relates to the technical field of simulated air, in particular to a transceiver design method, a sink node and a sensing node.
Background
Analog Function Computation (Analog Function Computation) is a data transmission method applied in wireless sensor networks. In the wireless sensor network, the ultimate purpose of all sensors transmitting data is to realize a specific function (such as summation, average, maximum and minimum) rather than the data in the transmission process, and rather than collecting the data of each sensor one by one, the most interesting result can be directly collected by special means. Therefore, simulation of aerial computing arises.
In actual wireless network transmission, a MAC (Multiple Access Channel) has different fading on signals collected from different paths, which causes different degrees of distortion on the signals at a receiving end, so that the signals need to be subjected to different pre-processing, which is a transceiver design. The main idea of transceiver design is to compensate signal fading and distortion introduced by factors such as space loss and multipath effect in the wireless propagation process based on the CSI (Channel State Information) from the network node to the receiving end, so as to recover data more accurately at the receiving end.
The traditional transceiver design process is that a wireless sensor node sequentially sends pilot signals to a sink node, and the sink node can acquire CSI from each node to the local according to the pilot signals, so that an optimal transceiver is calculated; and the sink node sequentially sends the calculated optimal transmitters to the corresponding wireless sensor nodes.
The inventor finds that in the research process of the prior art, the wireless sensor nodes sequentially send pilot signals, so that the aggregation nodes collect the CSI of the single sensor node one by one, which causes high time delay for the design of the transceiver.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention provide a transceiver design method, a sink node, and a sensing node, and the technical scheme is as follows:
a transceiver design method, comprising:
determining channel state information from each sensing node to a sink node;
broadcasting receiver preprocessing vectors to enable each sensing node to determine a transmitter vector according to the corresponding channel state information and the receiver preprocessing vectors;
determining first effective channel state information, wherein the first effective channel state information is determined according to first pilot signals simultaneously sent by all sensing nodes;
determining second effective channel state information, wherein the second effective channel state information is determined according to second pilot signals simultaneously transmitted by all sensing nodes, and the second pilot signals are determined according to the channel state information and the transmitter vectors;
and determining a target receiver vector according to the first effective channel state information and the second effective channel state information.
Preferably, the method further comprises the following steps:
broadcasting the target receiver vector to each sensing node so that each sensing node determines a target transmitter vector according to the corresponding channel state information and the target receiver vector.
Preferably, the method further comprises the following steps:
determining a receiver vector difference value of a target receiver vector and a receiver preprocessing vector and a transmitter vector difference value of a target transmitter vector and a transmitter vector;
judging whether the vector difference value of the receiver is smaller than a first threshold value or not and whether the vector difference value of the transmitter is smaller than a second threshold value or not;
if so, taking the target receiver vector as an optimal receiver vector, and taking the target transmitter vector as an optimal transmitter vector;
and if not, replacing the receiver preprocessing vector with the target receiver vector, and returning to execute the step that the sink node broadcasts the receiver preprocessing vector so that each sensing node determines the sender vector corresponding to the receiver preprocessing vector.
Preferably, determining the channel state information from each sensing node to the aggregation node includes:
broadcasting a third pilot signal so that each sensing node determines channel state information from the aggregation node to each sensing node according to the third pilot signal;
and according to the channel reciprocity, using the channel state information from the aggregation node to each sensing node as the channel state information from each sensing node to the aggregation node.
A transceiver design method, comprising:
determining channel state information from a sink node to a sensing node;
receiving a receiver preprocessing vector, and determining a transmitter vector according to the channel state information and the receiver preprocessing vector;
the method comprises the steps that a first pilot signal is sent simultaneously with other sensing nodes, so that a sink node determines first effective channel state information according to the first pilot signal;
and sending a second pilot signal simultaneously with other sensing nodes so that the sink node determines second effective channel state information according to the second pilot signal, wherein the second pilot signal is determined according to the channel state information and the transmitter vector.
Preferably, the method further comprises the following steps:
receiving a target receiver vector, wherein the target receiver vector is determined by the sink node according to the first effective channel state information and the second effective channel state information;
and determining a target transmitter vector according to the corresponding channel state information and the target receiver vector.
A sink node, comprising:
the first determining unit is used for determining the channel state information from each sensing node to the aggregation node;
the first broadcasting unit is used for broadcasting receiver preprocessing vectors so that each sensing node determines a transmitter vector according to the corresponding channel state information and the receiver preprocessing vectors;
a second determining unit, configured to determine first effective channel state information, where the first effective channel state information is determined according to first pilot signals simultaneously sent by each sensing node;
a third determining unit, configured to determine second effective channel state information, where the second effective channel state information is determined according to second pilot signals simultaneously sent by each sensing node, and the second pilot signals are determined according to the channel state information and the transmitter vector;
a fourth determining unit, configured to determine a target receiver vector according to the first effective channel state information and the second effective channel state information.
Preferably, the method further comprises the following steps:
and the second broadcasting unit is used for broadcasting the target receiver vector to each sensing node so that each sensing node determines a target transmitter vector according to the corresponding channel state information and the target receiver vector.
A sensing node, comprising:
a fifth determining unit, configured to determine channel state information from the sink node to the sensor node;
the first receiving unit is used for receiving the receiver preprocessing vector and determining a transmitter vector according to the channel state information and the receiver preprocessing vector;
the first sending unit is used for sending a first pilot signal simultaneously with other sensing nodes so that the sink node determines first effective channel state information according to the first pilot signal;
and the second sending unit is used for sending a second pilot signal simultaneously with other sensing nodes so that the sink node determines second effective channel state information according to the second pilot signal, wherein the second pilot signal is determined according to the channel state information and the transmitter vector.
Preferably, the method further comprises the following steps:
a second receiving unit, configured to receive a target receiver vector, where the target receiver vector is determined by the sink node according to the first effective channel state information and the second effective channel state information;
a sixth determining unit, configured to determine a target transmitter vector according to the corresponding channel state information and the target receiver vector.
According to the technical scheme provided by the embodiment of the invention, when the sink node determines the effective channel state information, each sensing node can simultaneously send the pilot signals, and compared with the signaling process that each sensor node sequentially sends the pilot signals in the prior art, the scheme provided by the invention greatly reduces the time delay when the transceiver is designed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a diagram of a network deployment structure of a transmitter design according to an embodiment of the present invention;
fig. 2 is a flow chart of a transceiver design according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating a transceiver design according to an embodiment of the present invention;
FIG. 4 is a flow chart illustrating a transceiver design according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a sink node according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a sensing node according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Before introducing the embodiment of the present invention, a network deployment structure diagram of transceiver design is introduced, as shown in fig. 1, including:
a plurality of sensing nodes 110 and aggregation nodes 120;
the sensing node 110 comprises an equation preprocessing unit 1101, a transmitter preprocessing unit 1102 and a transmitting antenna 1103;
the sink node 120 includes a receiving antenna 1201, a receiver preprocessing unit 1202, and an equation post-processing unit 1203;
signals transmitted by all sensing nodes 110 are superposed in the air and received by the aggregation node 120; the sink node 120 passes through the receiver preprocessing unit 1202 and then passes through the equation post-processing unit 1203 to obtain the target equation estimation value.
In practical applications, the sensing node may include a wireless sensor node.
Referring to fig. 2, fig. 2 is a flowchart illustrating an implementation of a transceiver design method according to an embodiment of the present invention, where the embodiment is described from the perspective of a sink node, and the sink node is taken as an execution subject, the method includes:
step S201, determining channel state information from each sensing node to a sink node.
The aggregation node broadcasts a third pilot signal, each sensing node can obtain CSI from the aggregation node to each sensing node through the third pilot signal, and the CSI is known according to channel reciprocity and is defined as H, wherein the CSI is the same as the CSI from each sensing node to the aggregation nodeK。
Step S202, the broadcast receiver preprocesses the vector, so that each sensing node determines a transmitter vector according to the corresponding channel state information and the receiver preprocessing vector.
The receiver preprocessing vector is an initial receiver vector, each sensing node can acquire the receiver preprocessing vector in a broadcasting mode, and each sensing node can determine a transmitter vector according to the channel state information and the receiver preprocessing vector in the step S201.
Wherein, each sensing node determines a transmitter vector according to the corresponding channel state information and the receiver preprocessing vector, and the used formula is as follows:
where a is the receiver pre-processing vector, HKFor sensing CSI from node k to sink node bkPre-processing vectors for transmitters sensing node k and satisfying power constraints
n is compliance
Distributed noise.
Based on the network deployment architecture diagram of fig. 1, the implementation of the formula for determining the transmitter vector is introduced as follows:
at the sensing node, if the total number of the sensing nodes is K, the sensed signal is s1,s2,...,sKRemember siIs pretreated by a corresponding equation
The latter signal being xi，i＝1,2,..,K。
At the sink node, signals pre-processed by channel transmission and receiver are recorded
Comprises the following steps:
where a is the receiver pre-processing vector, HKIs CSI from node k to sink node bkPreprocessing vectors for the transmitter of node k and satisfying power constraints
n is compliance
Distributed noise.
Note that the equation post-processing is psi (·), and the actual target equation values are:
the target equation estimate at the receiving end
Comprises the following steps:
to achieve target equation estimates
The minimum MSE of, the required transceivers are:
where μ k is the Lagrangian multiplier, which satisfies
Step S203, determining first effective channel state information, where the first effective channel state information is determined according to first pilot signals simultaneously sent by each sensing node.
Each sensing node simultaneously transmits a first pilot signal, such as pilot signal 1, and the sink node may determine, by using the channel superposition characteristics, that the first effective channel state information CS1 is a vector:
step S204, determining second effective channel state information, wherein the second effective channel state information is determined according to second pilot signals simultaneously sent by all sensing nodes, and the second pilot signals are determined according to the channel state information and the transmitter vectors.
The sensing nodes simultaneously transmitting a second pilot signal, e.g. a pilot signal
The sink node may determine the first effective channel state information CS1 as a matrix by using the channel superposition characteristics:
step S205, determining a target receiver vector according to the first effective channel state information and the second effective channel state information.
From g and F, the target receiver vector a is calculated as:
after the target receiver vector is determined, the target receiver vector can be broadcasted to each sensing node, so that each sensing node determines a target transmitter vector according to the corresponding channel state information and the target receiver vector.
According to the technical scheme provided by the embodiment of the invention, when the sink node determines the effective channel state information, each sensing node can simultaneously send the pilot signals, and compared with the signaling process that each sensor node sequentially sends the pilot signals in the prior art, the scheme provided by the invention greatly reduces the time delay when the transceiver is designed.
The formula for determining the target transmitter vector is the same as the formula for determining the transmitter vector in step S202, except that the value of a in the formula is the target receiver vector.
In order to obtain the optimal target receiver vector and target transmitter vector, the target receiver vector and target transmitter vector need to be trained, as shown in fig. 3, the method further includes:
step S301, determining a receiver vector difference value of the target receiver vector and the receiver preprocessing vector and a transmitter vector difference value of the target transmitter vector and the transmitter vector.
Step S302, determining whether the receiver vector difference is smaller than a first threshold, and whether the transmitter vector difference is smaller than a second threshold, if yes, performing step S303, otherwise, performing step S304.
Step S303, taking the target receiver vector as an optimal receiver vector and taking the target transmitter vector as an optimal transmitter vector;
and step S304, replacing the receiver preprocessing vector with the target receiver vector, and returning to execute the step S202.
Referring to fig. 4, fig. 4 is a flowchart illustrating an implementation of a transceiver design method according to an embodiment of the present invention, where the embodiment is described from the perspective of a sensing node, and the sensing node is taken as an execution subject, the method includes:
step S401, determining channel state information from the sink node to the sensing node.
The aggregation node broadcasts a third pilot signal, and the sensing node can acquire CSI from the aggregation node to each sensing node through the third pilot signal, wherein the CSI is defined as HK。
And S402, receiving the receiver preprocessing vector, and determining a transmitter vector according to the channel state information and the receiver preprocessing vector.
The receiver preprocessing vector is an initial receiver vector, each sensing node determines a transmitter vector according to the corresponding channel state information and the receiver preprocessing vector, and the used formula is as follows:
where a is the receiver pre-processing vector, HKFor sensing CSI from node k to sink node bkPre-processing vectors for transmitters sensing node k and satisfying power constraints
n is compliance
Distributed noise.
Step S403, sending the first pilot signal simultaneously with other sensing nodes, so that the sink node determines the first effective channel state information according to the first pilot signal.
And transmitting a first pilot signal, such as pilot signal 1, simultaneously with other sensing nodes, the sink node may determine, by using the channel superposition characteristics, that the first effective channel state information CS1 is a vector:
step S404, sending a second pilot signal simultaneously with other sensing nodes, so that the sink node determines second effective channel state information according to the second pilot signal, where the second pilot signal is determined according to the channel state information and the transmitter vector.
The sensing nodes simultaneously transmitting a second pilot signal, e.g. a pilot signal
The sink node may determine the first effective channel state information CS1 as a matrix by using the channel superposition characteristics:
preferably, the method further comprises the following steps:
receiving a target receiver vector, wherein the target receiver vector is determined by the sink node according to the first effective channel state information and the second effective channel state information;
from g and F, the target receiver vector a is calculated as:
and determining a target transmitter vector according to the corresponding channel state information and the target receiver vector.
According to the technical scheme provided by the embodiment of the invention, each sensing node can simultaneously send the pilot signal so as to enable the sink node to determine the effective channel state information, and compared with the signaling process that each sensor node sequentially sends the pilot signal in the prior art, the scheme provided by the invention greatly reduces the time delay during the design of the transceiver.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a sink node according to an embodiment of the present invention, where the working process of each module in the schematic structural diagram refers to the execution process of the method in the embodiment corresponding to fig. 2, and the execution process includes:
a first determining unit 510, configured to determine channel state information from each sensing node to the aggregation node.
A first broadcasting unit 520, configured to broadcast the receiver preprocessing vector, so that each sensing node determines a transmitter vector according to the corresponding channel state information and the receiver preprocessing vector.
A second determining unit 530, configured to determine first effective channel state information, where the first effective channel state information is determined according to first pilot signals simultaneously sent by each sensing node.
A third determining unit 540, configured to determine second effective channel state information, where the second effective channel state information is determined according to second pilot signals simultaneously sent by each sensing node, and the second pilot signals are determined according to the channel state information and a transmitter vector.
A fourth determining unit 550, configured to determine a target receiver vector according to the first effective channel state information and the second effective channel state information.
Preferably, the method further comprises the following steps:
and the second broadcasting unit is used for broadcasting the target receiver vector to each sensing node so that each sensing node determines the target transmitter vector according to the corresponding channel state information and the target receiver vector.
According to the technical scheme provided by the embodiment of the invention, when the sink node determines the effective channel state information, each sensing node can simultaneously send the pilot signals, and compared with the signaling process that each sensor node sequentially sends the pilot signals in the prior art, the scheme provided by the invention greatly reduces the time delay when the transceiver is designed.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a sink node according to an embodiment of the present invention, where working processes of modules in the schematic structural diagram refer to an execution process of a method in an embodiment corresponding to fig. 3, where the execution process includes:
a fifth determining unit 610, configured to determine channel state information from the sink node to the sensor node.
A first receiving unit 620, configured to receive the receiver pre-processing vector and determine a transmitter vector according to the channel state information and the receiver pre-processing vector.
A first sending unit 630, configured to send a first pilot signal simultaneously with other sensing nodes, so that the sink node determines the first effective channel state information according to the first pilot signal.
The second sending unit 640 is configured to send a second pilot signal simultaneously with other sensing nodes, so that the sink node determines second effective channel state information according to the second pilot signal, where the second pilot signal is determined according to the channel state information and the transmitter vector.
Preferably, the method further comprises the following steps:
the second receiving unit is used for receiving a target receiver vector, and the target receiver vector is determined by the sink node according to the first effective channel state information and the second effective channel state information;
a sixth determining unit, configured to determine a target transmitter vector according to the corresponding channel state information and the target receiver vector.
According to the technical scheme provided by the embodiment of the invention, each sensing node can simultaneously send the pilot signal so as to enable the sink node to determine the effective channel state information, and compared with the signaling process that each sensor node sequentially sends the pilot signal in the prior art, the scheme provided by the invention greatly reduces the time delay during the design of the transceiver.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For device or system embodiments, as they correspond substantially to method embodiments, reference may be made to the method embodiments for some of their descriptions. The above-described embodiments of the apparatus or system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways without departing from the spirit and scope of the present invention. The present embodiment is an exemplary embodiment only, and should not be taken as limiting, and the specific contents given should not limit the object of the present invention. For example, the division of the unit or the sub-unit is only one logical function division, and there may be another division manner in actual implementation, for example, a plurality of units or a plurality of sub-units are combined together. In addition, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented.
Additionally, the systems, apparatus, and methods described, as well as the illustrations of various embodiments, may be combined or integrated with other systems, modules, techniques, or methods without departing from the scope of the invention. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The foregoing is directed to embodiments of the present invention, and it is understood that various modifications and improvements can be made by those skilled in the art without departing from the spirit of the invention.
Claims (10)
1. A transceiver design method, comprising:
determining channel state information from each sensing node to a sink node;
broadcasting receiver preprocessing vectors to enable each sensing node to determine a transmitter vector according to the corresponding channel state information and the receiver preprocessing vectors;
determining first effective channel state information, wherein the first effective channel state information is determined according to first pilot signals simultaneously sent by all sensing nodes;
determining second effective channel state information, wherein the second effective channel state information is determined according to second pilot signals simultaneously transmitted by all sensing nodes, and the second pilot signals are determined according to the channel state information and the transmitter vectors;
and determining a target receiver vector according to the first effective channel state information and the second effective channel state information.
2. The method of claim 1, further comprising:
broadcasting the target receiver vector to each sensing node so that each sensing node determines a target transmitter vector according to the corresponding channel state information and the target receiver vector.
3. The method of claim 2, further comprising:
determining a receiver vector difference value of a target receiver vector and a receiver preprocessing vector and a transmitter vector difference value of a target transmitter vector and a transmitter vector;
judging whether the vector difference value of the receiver is smaller than a first threshold value or not and whether the vector difference value of the transmitter is smaller than a second threshold value or not;
if so, taking the target receiver vector as an optimal receiver vector, and taking the target transmitter vector as an optimal transmitter vector;
and if not, replacing the receiver preprocessing vector with the target receiver vector, and returning to execute the step that the sink node broadcasts the receiver preprocessing vector so that each sensing node determines the sender vector corresponding to the receiver preprocessing vector.
4. The method according to any one of claims 1-3, wherein determining the channel state information from each sensing node to the aggregation node comprises:
broadcasting a third pilot signal so that each sensing node determines channel state information from the aggregation node to each sensing node according to the third pilot signal;
and according to the channel reciprocity, using the channel state information from the aggregation node to each sensing node as the channel state information from each sensing node to the aggregation node.
5. A transceiver design method, comprising:
determining channel state information from a sink node to a sensing node;
receiving a receiver preprocessing vector, and determining a transmitter vector according to the channel state information and the receiver preprocessing vector;
the method comprises the steps that a first pilot signal is sent simultaneously with other sensing nodes, so that a sink node determines first effective channel state information according to the first pilot signal;
and sending a second pilot signal simultaneously with other sensing nodes so that the sink node determines second effective channel state information according to the second pilot signal, wherein the second pilot signal is determined according to the channel state information and the transmitter vector.
6. The method of claim 5, further comprising:
receiving a target receiver vector, wherein the target receiver vector is determined by the sink node according to the first effective channel state information and the second effective channel state information;
and determining a target transmitter vector according to the corresponding channel state information and the target receiver vector.
7. A sink node, comprising:
the first determining unit is used for determining the channel state information from each sensing node to the aggregation node;
the first broadcasting unit is used for broadcasting receiver preprocessing vectors so that each sensing node determines a transmitter vector according to the corresponding channel state information and the receiver preprocessing vectors;
a second determining unit, configured to determine first effective channel state information, where the first effective channel state information is determined according to first pilot signals simultaneously sent by each sensing node;
a third determining unit, configured to determine second effective channel state information, where the second effective channel state information is determined according to second pilot signals simultaneously sent by each sensing node, and the second pilot signals are determined according to the channel state information and the transmitter vector;
a fourth determining unit, configured to determine a target receiver vector according to the first effective channel state information and the second effective channel state information.
8. The aggregation node of claim 7, further comprising:
and the second broadcasting unit is used for broadcasting the target receiver vector to each sensing node so that each sensing node determines a target transmitter vector according to the corresponding channel state information and the target receiver vector.
9. A sensing node, comprising:
a fifth determining unit, configured to determine channel state information from the sink node to the sensor node;
the first receiving unit is used for receiving the receiver preprocessing vector and determining a transmitter vector according to the channel state information and the receiver preprocessing vector;
the first sending unit is used for sending a first pilot signal simultaneously with other sensing nodes so that the sink node determines first effective channel state information according to the first pilot signal;
and the second sending unit is used for sending a second pilot signal simultaneously with other sensing nodes so that the sink node determines second effective channel state information according to the second pilot signal, wherein the second pilot signal is determined according to the channel state information and the transmitter vector.
10. The sensing node of claim 9, further comprising:
a second receiving unit, configured to receive a target receiver vector, where the target receiver vector is determined by the sink node according to the first effective channel state information and the second effective channel state information;
a sixth determining unit, configured to determine a target transmitter vector according to the corresponding channel state information and the target receiver vector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810979892.2A CN109274616B (en) | 2018-08-27 | 2018-08-27 | Transceiver design method, aggregation node and sensing node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810979892.2A CN109274616B (en) | 2018-08-27 | 2018-08-27 | Transceiver design method, aggregation node and sensing node |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109274616A CN109274616A (en) | 2019-01-25 |
| CN109274616B true CN109274616B (en) | 2020-05-22 |
Family
ID=65154532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810979892.2A Active CN109274616B (en) | 2018-08-27 | 2018-08-27 | Transceiver design method, aggregation node and sensing node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109274616B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435867A (en) * | 2008-12-17 | 2009-05-20 | 西安交通大学 | Wireless sensor network node positioning method based on phase measurement |
| WO2013006723A1 (en) * | 2011-07-05 | 2013-01-10 | Qualcomm Incorporated | Systems and methods for addressing doppler effect in wireless communications systems |
| CN104168661A (en) * | 2014-06-19 | 2014-11-26 | 吉林大学 | Transmission scheduling method for network lifetime maximization that satisfies fairness condition |
| CN108259095A (en) * | 2018-01-29 | 2018-07-06 | 中国科学技术大学 | The wireless sensor network disposition structure of joint SFFT and COA and frequency spectrum method for reconstructing |
-
2018
- 2018-08-27 CN CN201810979892.2A patent/CN109274616B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435867A (en) * | 2008-12-17 | 2009-05-20 | 西安交通大学 | Wireless sensor network node positioning method based on phase measurement |
| WO2013006723A1 (en) * | 2011-07-05 | 2013-01-10 | Qualcomm Incorporated | Systems and methods for addressing doppler effect in wireless communications systems |
| CN104168661A (en) * | 2014-06-19 | 2014-11-26 | 吉林大学 | Transmission scheduling method for network lifetime maximization that satisfies fairness condition |
| CN108259095A (en) * | 2018-01-29 | 2018-07-06 | 中国科学技术大学 | The wireless sensor network disposition structure of joint SFFT and COA and frequency spectrum method for reconstructing |
Non-Patent Citations (1)
| Title |
|---|
| Robust Analog Function Computation via Wireless Multiple-Access Channels;Mario Goldenbaum等;《 IEEE Transactions on Communications》;20130801;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109274616A (en) | 2019-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106797223B (en) | The system and method that number for self-interference in full-duplex communication is eliminated | |
| CN104168241B (en) | Multiple input multiple output orthogonal frequency division multiplexing communication system and method for compensating signal | |
| CN101523736A (en) | Mobile assisted downlink beamforming with antenna weight feedback | |
| CN106658540A (en) | Apparatus and method in wireless communication system | |
| CN106664115B (en) | A kind of data transmission set, method and system | |
| EP2051406A3 (en) | Method to establish and maintain an aircraft ad-hoc communication network | |
| CN103024765A (en) | Method for detecting interference base station and base station | |
| US10924243B2 (en) | Channel identification in a MIMO telecommunications system | |
| EP3479503B1 (en) | Over the air testing of a radio communications device | |
| JP2013539252A5 (en) | ||
| CN1748382B (en) | Transmission device and transmission method | |
| CN103338167A (en) | Channel correction method of remote radio unit (RRU), relevant equipment and system | |
| WO2009142407A3 (en) | Mimo detection method and system based on channel correlation | |
| CN107171981B (en) | Channel correction method and device | |
| CN101873295B (en) | Signal processing method and device as well as signal receiving method and receiving machine | |
| CN105940625A (en) | Base station device, wireless communication system, and communication method | |
| EP2104241A3 (en) | Wireless communication system, wireless communication method, transmission apparatus, and reception apparatus | |
| CN110677368B (en) | Cooperative working method and system of radar and communication integrated system | |
| WO2015196725A1 (en) | Channel simulation apparatus and method, and computer storage medium | |
| WO2010016714A3 (en) | Apparatus for removing interference between neighbor cells in a radio communication system, and method for same | |
| CN105723783A (en) | Synchronization signal transmitting device, receiving device, method, and system | |
| CN106357583A (en) | Timing synchronization method based on CAZAC sequence under distributed MIMO-OFDM system | |
| CN109274616B (en) | Transceiver design method, aggregation node and sensing node | |
| CN112073893A (en) | Electronic device and method for wireless communication, computer-readable storage medium | |
| CN103607231B (en) | The fast beam changing method of multiple antennas is utilized under high-speed mobile environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |