CN111601378B - Active surplus energy sharing method in energy collection unbalanced sensor network - Google Patents
Active surplus energy sharing method in energy collection unbalanced sensor network Download PDFInfo
- Publication number
- CN111601378B CN111601378B CN202010393450.7A CN202010393450A CN111601378B CN 111601378 B CN111601378 B CN 111601378B CN 202010393450 A CN202010393450 A CN 202010393450A CN 111601378 B CN111601378 B CN 111601378B
- Authority
- CN
- China
- Prior art keywords
- energy
- node
- tek
- sharing
- rek
- 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
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Abstract
The invention relates to a method for actively sharing surplus energy in an energy collection unbalanced sensor network, and belongs to the field of wireless communication. When the rechargeable battery with limited capacity detects that excessive solar energy which cannot be stored and collected is not stored, redundant energy is shared to other nodes in a redundant energy active sharing mode, and the network energy utilization efficiency is improved. In the process of active sharing of the surplus energy, each surplus energy active sharing node establishes an energy sharing set belonging to the node, and the nodes in the set are used for receiving the radio frequency energy shared by the energy sharing nodes. And the surplus energy active sharing node sequentially sends radio frequency energy sequences to the energy receiving nodes according to the energy difference values of all nodes in the energy sharing set until the energy collected by the energy sharing node is not excessive any more, and the node energy sharing process is terminated. The invention fully utilizes the radio frequency energy transmission technology to realize energy sharing among the nodes, can effectively improve the energy configuration of the network and improve the utilization efficiency of the collected energy.
Description
Technical Field
The invention belongs to the field of wireless communication, and relates to a method for actively sharing surplus energy in an energy collection unbalanced sensor network.
Background
Each node in the wireless sensor network for energy collection is provided with a solar energy collection device, a radio frequency energy collection device and a rechargeable battery with limited capacity. The sensor nodes which are distributed in different areas and powered by the collected solar energy are different in illumination intensity, so that energy collection is unbalanced. The capacity of the existing rechargeable battery is limited, and a large amount of energy collected by the solar cell panel after being illuminated by long-time and high-intensity light cannot be stored, so that the energy is wasted. And the weak light irradiates or the shielded nodes collect less energy, so that the energy supply of the nodes is insufficient. The nodes with excessive collected energy cannot store the excessive energy due to limited battery capacity, so that resources are wasted, the nodes with insufficient collected energy cannot work normally due to insufficient energy, and the running performance of the network is seriously affected by imbalance of collected energy.
Currently, radio frequency energy collection technology is regarded as one of the important technologies to replace traditional battery energy supply, and becomes a research hotspot in the field of wireless communication. The radio frequency energy collection technology comprises the technologies of information and energy simultaneous transmission, radio frequency energy transmission and the like, and has a wide application prospect in a wireless sensor network. Aiming at the condition that energy collection is unbalanced in a wireless sensor network powered by collected solar energy, a mode of sending a radio frequency energy sequence is adopted to enable nodes with excessive energy collection to actively share the excessive energy to other nodes with insufficient energy.
The invention provides a surplus energy active sharing method aiming at a wireless sensor network with unbalanced energy collection and limited rechargeable battery capacity, so that surplus energy can be actively shared to more relay nodes by nodes with surplus energy as much as possible, the energy configuration of the network is improved, the energy utilization efficiency is improved, and the reliability of network data transmission is improved.
Disclosure of Invention
In view of the above, the present invention provides an active sharing method of surplus energy in an energy collecting unbalanced sensor network. The nodes which can not store due to the limited capacity of the rechargeable battery can share the excessive energy to other nodes which can not collect enough energy due to the excessive energy collection, the defects of limited capacity and unbalanced energy distribution of the existing network battery are overcome, the energy configuration of the network is improved, and the reliability of network data transmission is improved while the network energy utilization rate is improved.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for actively sharing surplus energy in an energy collection unbalanced sensor network comprises the following steps:
s1: in a wireless sensor network for energy collection, a sensor node siDetecting collection at time tSolar energy value of
Whether the residual storage capacity E of the rechargeable battery of the node is exceededmax(ii) a If it is
Less than EmaxStoring the collected energy in a rechargeable battery to provide energy for normal operation of the node; if it is
Greater than EmaxGo to step S2;
s2: when node siDetecting at time t that the collected solar energy is greater than EmaxThen, the node becomes a surplus energy active sharing node, and is marked as stekK represents the number of the energy sharing node; node stekThe broadcast surplus energy actively shares the AES frame, and the node which receives the AES frame and is insufficient in energy collection is added into the node stekEnergy sharing set E(s)tek) Performing the following steps; each energy sharing node stekAll belong to respective energy sharing sets E(s)tek)，E(stek) The node in (1) is marked as srek_iWhere k denotes the number of the energy sharing node and i denotes E(s)tek) A sequence number of the intermediate energy receiving node; in the following time slot T1In, srek_iCompetition for radio frequency energy receiving sequence(s) by distributed competition moderek_1,srek_2,...,srek_n}；
S3: energy sharing node stekWill follow the order srek_1,srek_2,...,srek_nIs E(s) in turntek) The node in (1) transmits a sequence of radio frequency energy.
Optionally, in step S2, the energy sharing set is formed by the method that when the node S is a node SjReceiving node stekAfter the AES frame is sent, whether the energy collected by the node is sufficient or not is detected, and if the collected solar energy is insufficient, sjJoin set E(s)tek) At this time, node sjBecomes a node stekEnergy receiving node of, denoted as srek_i(ii) a From sjJoin set E(s)tek) To the node receives stekIn the time period of sending the radio frequency energy, AES frames sent by other energy sharing nodes are not received; each energy sharing node stekWith respective sets of energy shares E(s)tek) And the energy sharing sets have no intersection with each other.
Optionally, in the step S2, the energy receiving set E (S)tek) The specific method of distributed competition among the nodes is that the node srek_iCalculating self residual energy
And the energy consumption in the data transmission process
Difference of (2)
At this time srek_iThe equipped timing counter starts to decrement, and the initial value of the timer is set as the energy difference value
Proportional to the energy difference, until the counter counts to 0, the node with the minimum energy difference wins first; node with the first count of 0 goes to energy sharing node stekSending energy reception request ERR frame, node stekAfter receiving ERR frame, marking s for the noderek_1(ii) a After the counting of the timers of other nodes is 0, the other nodes sequentially turn to stekSending an ERR frame, and stekNumbering according to the recorded sequence of ERR frames, and marking the node which finally sends the ERR frame as srek_n。
The invention has the beneficial effects that:
(1) aiming at the problems of unbalance of energy collection of each node in the energy collection wireless sensor network and limited capacity of a rechargeable battery, the invention provides a surplus energy active sharing strategy, so that the nodes which have excessive energy collection but cannot store the excessive energy share the nodes with insufficient energy collection in a radio frequency mode, the energy configuration of the network is improved, and the energy utilization efficiency of the whole network is improved.
(2) In the process of actively sharing the surplus energy, the nodes in the energy sharing set transmit the radio frequency energy sequence according to the sequence from small to large of the difference value between the required energy value and the surplus energy, so that the node with the minimum energy difference value preferentially receives the radio frequency energy, and the node with the maximum energy difference value finally receives the radio frequency energy, thereby ensuring that the number of nodes with sufficient energy in the network is the maximum, and improving the reliability of network transmission.
(3) The invention fully utilizes the energy cooperation among the network nodes, effectively improves the energy configuration of the network, improves the energy utilization efficiency of the whole network, improves the reliability of data transmission and has better practicability.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a system model flow diagram of the present invention.
FIG. 2 is a communication flow diagram of the active energy cooperation method of the present invention: FIG. 2(a) is a diagram of an energy sharing node broadcasting an AES frame; fig. 2(b) is an energy sharing set of each energy sharing node; FIG. 2(c) is an ERR frame broadcast diagram; fig. 2(d) is a rf energy sharing diagram.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1, a system model of an active surplus energy sharing method in an energy collection wireless sensor network according to the present invention is shown. The system model considered by the invention consists of a plurality of source nodes si(i ═ 1., N) and a destination node d. Each node in the network is provided with a solar energy collecting device, a radio frequency energy collecting device and a rechargeable battery. Source node siNode s with sufficient channel conditions with source node and destination node when other nodes need to cooperate in the process of communicating with destination node dj(j ═ 1., N, j ≠ i) selects the relay node r. In cooperative transmission, the relay r consumes partial energy to forward data to a target programAnd (d) a point. Defining a node si、sj、skWith destination node d, node siAnd node skNode siAnd node sjThe channel gains between are respectively
Variance is respectively
Each node is in a half-duplex mode of operation.
As shown in fig. 2, a communication flow chart of an active surplus energy sharing method in an energy collection wireless sensor network according to the present invention is shown, wherein the active surplus energy sharing method is implemented as follows:
as shown in FIG. 2(a), a sensor node ste1And detecting that the collected solar energy value is larger than the residual storage capacity of the rechargeable battery of the node at the moment t, and sending a surplus energy active sharing AES frame to the surrounding nodes.
As shown in FIG. 2(b), the surplus energy actively shares the node ste1...stekThe energy reception sets belonging to each are formed as follows. When node sjReceiving node ste1After the AES frame is sent, whether the energy collected by the node is sufficient or not is detected, and if the collected solar energy is insufficient, sjJoin set E(s)te1) At this time, node sjBecomes a node ste1Energy receiving node of, denoted as sre1_i. From sjJoin set E(s)te1) To the node receives ste1And in the time period of sending the radio frequency energy, the AES frames sent by other energy sharing nodes are not received. Node srekThe same principle is applied to the formation of the energy sharing set.
As shown in FIG. 2(c), the energy receiving set E(s)tek) The nodes compete for the energy reception order in the following competition manner. Node srek_iCalculating self residual energy
And the energy consumption in the data transmission process
Difference of (2)
At this time srek_iThe equipped timing counter starts to decrement, and the initial value of the timer is set as the energy difference value
And proportional to the ratio until the counter counts to 0, and the node with the smallest energy difference wins first. Node with the first count of 0 goes to energy sharing node stekSending energy reception request ERR frame, node stekAfter receiving ERR frame, marking s for the noderek_1. After the counting of the timers of other nodes is 0, the other nodes sequentially turn to stekSending an ERR frame, and stekNumbering according to the recorded sequence of ERR frames, and marking the node which finally sends the ERR frame as srek_n. The last competition sequence is, { srek_1,srek_2,...,srek_n}。
As shown in FIG. 2(d), the energy sharing node stekAccording to E(s)tek) In the order of competition of each node srek_1,srek_2,...,srek_nSequentially sending radio frequency energy sequences to energy receiving nodes until stekThe collected energy is no longer in excess.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (2)
1. A method for actively sharing surplus energy in an energy collection unbalanced sensor network is characterized by comprising the following steps: the method comprises the following steps:
s1: in a wireless sensor network for energy collection, a sensor node siDetecting the value of the collected solar energy at a time t
Whether the residual storage capacity E of the rechargeable battery of the node is exceededmax(ii) a If it is
Less than EmaxStoring the collected energy in a rechargeable battery to provide energy for normal operation of the node; if it is
Greater than EmaxGo to step S2;
s2: when node siDetecting at time t that the collected solar energy is greater than EmaxThen, the node becomes a surplus energy active sharing node, and is marked as stekK represents the number of the energy sharing node; node stekThe broadcast surplus energy actively shares the AES frame, and the node which receives the AES frame and is insufficient in energy collection is added into the node stekEnergy sharing set E(s)tek) Performing the following steps; each energy sharing node stekAll belong to respective energy sharing sets E(s)tek)，E(stek) The node in (1) is marked as srek_iWhere k denotes the number of the energy sharing node and i denotes E(s)tek) A sequence number of the intermediate energy receiving node; in the following time slot T1In, srek_iCompetition for radio frequency energy receiving sequence(s) by distributed competition moderek_1,srek_2,...,srek_n}；
In the step S2, the energy receiving set E (S)tek) The specific method of distributed competition among the nodes is that the node srek_iCalculating self residual energy
And the data transmission processTo consume energy
Difference of (2)
At this time srek_iThe equipped timing counter starts to decrement, and the initial value of the timer is set as the energy difference value
Proportional to the energy difference, until the counter counts to 0, the node with the minimum energy difference wins first; node with the first count of 0 goes to energy sharing node stekSending energy reception request ERR frame, node stekAfter receiving ERR frame, marking s for the noderek_1(ii) a After the counting of the timers of other nodes is 0, the other nodes sequentially turn to stekSending an ERR frame, and stekNumbering according to the recorded sequence of ERR frames, and marking the node which finally sends the ERR frame as srek_n(ii) a The last competition order is { srek_1,srek_2,...,srek_n}；
S3: energy sharing node stekWill follow the order srek_1,srek_2,...,srek_nIs E(s) in turntek) The node in (1) transmits a sequence of radio frequency energy.
2. The active surplus energy sharing method in the energy harvesting unbalanced sensor network according to claim 1, wherein the method comprises the following steps: in step S2, the energy sharing set is formed by the method of the node SjReceiving node stekAfter the AES frame is sent, whether the energy collected by the node is sufficient or not is detected, and if the collected solar energy is insufficient, sjJoin set E(s)tek) At this time, node sjBecomes a node stekEnergy receiving node of, denoted as srek_i(ii) a From sjJoin set E(s)tek) To the node receives stekIn the time period of sending the radio frequency energy, AES frames sent by other energy sharing nodes are not received; each timeAn energy sharing node stekWith respective sets of energy shares E(s)tek) And the energy sharing sets have no intersection with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010393450.7A CN111601378B (en) | 2020-05-11 | 2020-05-11 | Active surplus energy sharing method in energy collection unbalanced sensor network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010393450.7A CN111601378B (en) | 2020-05-11 | 2020-05-11 | Active surplus energy sharing method in energy collection unbalanced sensor network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111601378A CN111601378A (en) | 2020-08-28 |
| CN111601378B true CN111601378B (en) | 2022-03-11 |
Family
ID=72185237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010393450.7A Active CN111601378B (en) | 2020-05-11 | 2020-05-11 | Active surplus energy sharing method in energy collection unbalanced sensor network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111601378B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112995939B (en) * | 2021-02-05 | 2023-02-28 | 浙江工贸职业技术学院 | Wireless sensor network transmission and cloud service access control system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015202223A1 (en) * | 2009-05-22 | 2015-05-21 | Mueller International, Llc | Infrastructure monitoring devices, systems, and methods |
| CN105637332A (en) * | 2013-07-11 | 2016-06-01 | 古德卢克斯科技有限责任公司 | Integrative light-powered light-monitoring system |
| CN107820317A (en) * | 2016-09-12 | 2018-03-20 | 中国科学院沈阳自动化研究所 | A kind of collection of energy and Poewr control method of cognition wireless Sensor Network |
| CN108321916A (en) * | 2018-03-02 | 2018-07-24 | 广西师范大学 | A kind of base station and energy collaboration method with energy collaboration feature |
| CN109618350A (en) * | 2019-01-14 | 2019-04-12 | 华中科技大学 | A kind of frequency spectrum sharing method and system based on signal re-transmission |
| CN110024422A (en) * | 2016-12-30 | 2019-07-16 | 英特尔公司 | The name of Internet of Things and block chained record |
| CN110113785A (en) * | 2019-05-07 | 2019-08-09 | 重庆邮电大学 | Cooperation transmission method based on energy mutual assistance in a kind of collection of energy wireless sense network |
| CN110475310A (en) * | 2019-09-27 | 2019-11-19 | 重庆邮电大学 | A kind of wireless energy collection network selection cooperation transmission method based on ARQ |
-
2020
- 2020-05-11 CN CN202010393450.7A patent/CN111601378B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015202223A1 (en) * | 2009-05-22 | 2015-05-21 | Mueller International, Llc | Infrastructure monitoring devices, systems, and methods |
| CN105637332A (en) * | 2013-07-11 | 2016-06-01 | 古德卢克斯科技有限责任公司 | Integrative light-powered light-monitoring system |
| CN107820317A (en) * | 2016-09-12 | 2018-03-20 | 中国科学院沈阳自动化研究所 | A kind of collection of energy and Poewr control method of cognition wireless Sensor Network |
| CN110024422A (en) * | 2016-12-30 | 2019-07-16 | 英特尔公司 | The name of Internet of Things and block chained record |
| CN108321916A (en) * | 2018-03-02 | 2018-07-24 | 广西师范大学 | A kind of base station and energy collaboration method with energy collaboration feature |
| CN109618350A (en) * | 2019-01-14 | 2019-04-12 | 华中科技大学 | A kind of frequency spectrum sharing method and system based on signal re-transmission |
| CN110113785A (en) * | 2019-05-07 | 2019-08-09 | 重庆邮电大学 | Cooperation transmission method based on energy mutual assistance in a kind of collection of energy wireless sense network |
| CN110475310A (en) * | 2019-09-27 | 2019-11-19 | 重庆邮电大学 | A kind of wireless energy collection network selection cooperation transmission method based on ARQ |
Non-Patent Citations (4)
| Title |
|---|
| "A High Capacity NetWork Asisted RS (HC-NWA-RS) Design for CoMP Measurements";NewPostcom;《3GPP TSG RAN WG1 Meeting #68 R1-120572》;20120131;全文 * |
| Energy Cooperation in Cellular Networks with Renewable Powered Base Stations;Yeow-Khiang Chia et al;《IEEE Transaction Wireless Communications》;20140808;全文 * |
| 协作通信中射频能量收集技术的研究;蔡蓉珽;《中国优秀硕士论文电子期刊网》;20190915;全文 * |
| 认知无线电网络中四维资源协作的研究现状与未来方向;谢显中等;《通信学报》;20180225(第02期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111601378A (en) | 2020-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110113785B (en) | Energy-mutual-assistance-based cooperative transmission method in energy-collecting wireless sensor network | |
| CN101841884B (en) | Wireless sensor network cluster head inheritance clustering method based on energy | |
| CN107835527B (en) | Wireless sensor network communication method based on time-sharing dormancy | |
| CN110072265B (en) | Method for realizing energy heterogeneous wireless sensor network clustering protocol | |
| CN107295598B (en) | Relay selection method suitable for energy and information simultaneous transmission network grouping | |
| CN104378812B (en) | Farmland self-organizing network regenerative resource node difference topology control method | |
| CN102651898A (en) | Delay-constrained and energy-efficient online routing for asynchronous sensor networks | |
| CN103781168B (en) | Power distribution method and system of cellular network | |
| CN110300418B (en) | Space-time scheduling algorithm for charging according to needs in wireless chargeable sensor network | |
| CN110493844B (en) | Data fusion alliance game method and system for wireless sensor network | |
| CN103228022A (en) | Probability type wireless sensor network routing method based on energy harvesting | |
| CN103781143A (en) | Cluster tree hierarchical wireless sensor network routing method with optimized energy efficiency | |
| CN101242433B (en) | Dynamic dormancy dispatching method orienting to target node positioning in wireless sensor network | |
| CN103209454A (en) | Double-cluster-head election method based on node competitive values and soft thresholds | |
| CN108541038B (en) | Routing method and system of wireless sensor network | |
| CN103634870A (en) | Wireless medical sensor network dynamic clustering method | |
| CN106413026A (en) | Rechargeable wireless sensor network adaptive clustering routing method | |
| CN111601378B (en) | Active surplus energy sharing method in energy collection unbalanced sensor network | |
| Wan et al. | AHP based relay selection strategy for energy harvesting wireless sensor networks | |
| CN109831811A (en) | Clustering Routing | |
| CN107690167A (en) | A kind of expansible network clustering method of wireless sensor | |
| TWI473522B (en) | Method and system for hierarchical clustering of wireless sensor networks | |
| CN113595903B (en) | Wireless sensor network node dormancy scheduling method based on FCM (fuzzy c-means) clustering topology | |
| CN108093468A (en) | Low-power consumption timeslot scheduling method based on TDMA agreements in self-organizing network | |
| CN104010339A (en) | WSN clustering method based on packet loss probability measurement |
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 |