CN111328147B - Anti-interference stable high-speed ad hoc network communication method - Google Patents
Anti-interference stable high-speed ad hoc network communication method Download PDFInfo
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- CN111328147B CN111328147B CN201811542246.6A CN201811542246A CN111328147B CN 111328147 B CN111328147 B CN 111328147B CN 201811542246 A CN201811542246 A CN 201811542246A CN 111328147 B CN111328147 B CN 111328147B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides an anti-interference stable high-speed ad hoc network communication method which comprises a starting flow, a networking and route establishment flow, a channel monitoring flow, a signal coding modulation flow and a signal relay flow. And realizing high-speed stable wireless ad hoc network information transmission.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to an anti-interference stable high-speed ad hoc network communication method.
Background
The existing ad hoc network mode is realized by adopting means such as zigbee and ADHOC, wherein the channel bandwidth of the zigbee protocol is smaller, the highest data with the information rate of 500kbps can be transmitted, and the ADHOC network is mainly used for temporary communication requirements and has shorter survival time compared with a wired network. Therefore, developing an anti-interference stable high-speed ad hoc network communication method is a problem to be solved.
Disclosure of Invention
The invention aims to solve the technical problems and provides an anti-interference stable high-speed ad hoc network communication method.
In order to solve the technical problems, the invention adopts the following technical scheme:
an anti-interference stable high-speed ad hoc network communication method comprises the following steps:
1. a device start-up flow;
2. establishing a networking and routing flow;
3. channel monitoring flow;
4. a signal code modulation flow;
5. and (5) a signal relay flow.
Further, the specific process of the device start-up procedure is as follows:
a. the wireless ad hoc network device 01 is powered on and initialized, and all parameters are initialized according to default configuration of the system.
b. And starting a self-checking flow, automatically receiving the test signal, detecting the communication state of the transmitting and receiving link, feeding back state information, and feeding back a fault code if the fault exists.
c. Detecting the current equipment control state information, combat readiness/peace, voice/command.
d. Waiting for a user to input a control instruction, and adopting default configuration if waiting for timeout.
e. And adjusting equipment parameters according to the user input instruction, and adjusting parameters such as a working mode, a communication channel, a frequency modulation interval, a frequency modulation frequency band and the like.
f. Waiting for the networking phase to be entered.
Further, the networking and route establishment flow comprises the following steps:
a. each sub-device is in a silent receiving state at the initial stage of system starting and waits for the device with the highest priority to transmit time slot information;
b. when the highest priority device transmits a starting time slot, each sub-device sequentially transmits broadcast information according to the priority order, and the information lasts for a super frame;
c. each piece of sub equipment acquires the current connection condition according to the broadcast information to form a routing table, and loads the routing table into a link frame for transmission;
d. acquiring the current channel condition according to the channel monitoring state to evaluate the frequency modulation path;
f. completing networking and route distribution in the time of the first frame;
g. each sub-device enters a listening mode and waits for its own transmit time slot.
Further, the channel monitoring flow comprises the following steps:
a. detecting radio signals in a frequency band of 400 MHz-750 MHz detected by AD9361 sweep frequency in real time; the total available transmission bandwidth is divided into 20 transmission channels, each transmission channel occupies 7.5MHz transmission bandwidth, and the channels are accessed by adopting FDD frequency division multiple access mode.
b. The link management frames 0 to 5 in one superframe sequentially report respective current radio spectrum characteristic maps according to the priority order.
c. The highest priority device collects and analyzes the wireless signal spectrum interference condition of the device and each sub-device to obtain the optimal communication channel, and notifies each sub-device to change the communication channel in a 6 th link management frame, wherein the 7 th, 8 th and 9 th link management frames are used for relay transmission.
d. If the channel is detected to have strong interference information, each piece of sub equipment in the normal communication system can not perform channel switching according to a locally stored fixed channel table, the sub equipment is switched to each next standby channel to perform data communication, and the sub equipment is re-networked to enter a networking establishment routing process.
Further, the code modulation process of the signal is the process of the signal code waveform in the signal processing subsystem.
Further, the signal relay transmission flow comprises the following steps:
a subframe has 12 slots in total, wherein the first six slots are used for broadcast transmission, and the last 6 slots are used for relay transmission, and the flow is as follows:
a. selecting an optimal relay path according to the route connection, and calculating the hop count;
b. waiting for transmitting time slot relay forwarding according to each sub-device of the optimal path;
c. and after the forwarding is finished, the relay state is exited.
Further, the sub-device is other wireless networking device.
The invention has the advantages and positive effects that: the method realizes high-speed stable wireless ad hoc network information transmission through a starting flow, a networking and route establishment flow, a channel monitoring flow, a signal coding modulation flow and a signal relay flow.
Drawings
Fig. 1 is a business flow diagram of the present method.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, an anti-interference stable high-speed ad hoc network communication method comprises the following steps:
1. device start-up procedure
The device starting flow is mainly a self-checking process of a device link and a configuration process of device parameters, wherein the parameters required to be configured by a user comprise a current communication channel, a current working mode, whether voice information is input or not, and the specific starting flow is as follows:
a. the wireless ad hoc network device 01 is powered on and initialized, and all parameters are initialized according to default configuration of the system.
b. And starting a self-checking flow, automatically receiving the test signal, detecting the communication state of the transmitting and receiving link, feeding back state information, and feeding back a fault code if the fault exists.
C. Detecting the current equipment control state information, combat readiness/peace, voice/command.
d. Waiting for a user to input a control instruction, and adopting default configuration if waiting for timeout.
e. And adjusting equipment parameters according to the user input instruction, and adjusting parameters such as a working mode, a communication channel, a frequency modulation interval, a frequency modulation frequency band and the like.
f. Waiting for the networking phase to be entered.
2. Networking and route establishment flow
The networking and route establishment process is one of the main points of communication of the ad hoc network system, the networking strategy is to perform broadcast communication according to the priority order of the devices, the device with the highest priority has control right, and the detailed networking flow and the routing strategy are as follows:
a. each sub-device is in a silent receiving state at the initial stage of system starting and waits for the device with the highest priority to transmit time slot information;
b. when the highest priority device transmits a starting time slot, each sub-device sequentially transmits broadcast information according to the priority order, and the information lasts for a super frame;
c. each piece of sub equipment acquires the current connection condition according to the broadcast information to form a routing table, and loads the routing table into a link frame for transmission;
d. acquiring the current channel condition according to the channel monitoring state to evaluate the frequency modulation path;
e. completing networking and route distribution in the time of the first frame;
f. each sub-device enters a listening mode and waits for its own transmit time slot.
3. Channel monitoring flow
The channel monitoring is to collect radio spectrum characteristics in the current-whole communication frequency band, update the channel interference condition in real time and select the optimal communication frequency band for slow frequency hopping communication, the frequency hopping rate of slow frequency modulation is 300ms one hop, namely one superframe channel is replaced once, and the channel detection flow is as follows:
a. detecting radio signals in a frequency band of 400 MHz-750 MHz detected by AD9361 sweep frequency in real time; the total available transmission bandwidth is divided into 20 transmission channels, each transmission channel occupies 7.5MHz transmission bandwidth, and the channels are accessed by adopting FDD frequency division multiple access mode.
b. The link management frames 0 to 5 in one superframe sequentially report respective current radio spectrum characteristic maps according to the priority order.
c. The highest priority device collects and analyzes the wireless signal spectrum interference condition of the device and each sub-device to obtain the optimal communication channel, and notifies each sub-device to change the communication channel in a 6 th link management frame, wherein the 7 th, 8 th and 9 th link management frames are used for relay transmission.
d. If the channel is detected to have strong interference information, each piece of sub equipment in the normal communication system can not perform channel switching according to a locally stored fixed channel table, the sub equipment is switched to each next standby channel to perform data communication, and the sub equipment is re-networked to enter a networking establishment routing process.
4. Signal code modulation flow
The code modulation flow of the signal is the processing flow of the signal code waveform in the signal processing subsystem. The flow is the prior art and will not be described in detail here.
5. Signal relay flow
If the relay condition exists in the route establishment, the relay communication needs to be completed in one voice/data subframe, and the subframe has 12 time slots, wherein the first six time slots are used for broadcast transmission, and the last 6 time slots are used for relay transmission, and the relay flow is as follows:
a. selecting an optimal relay path according to the route connection, and calculating the hop count;
b. waiting for transmitting time slot relay forwarding according to each sub-device of the optimal path;
c. and after the forwarding is finished, the relay state is exited.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by this patent.
Claims (5)
1. An anti-interference stable high-speed ad hoc network communication method is characterized by comprising the following steps:
1) A device start-up flow;
2) Establishing a networking and routing flow;
3) Channel monitoring flow;
4) A signal code modulation flow;
5) A signal relay flow;
the networking and route establishment flow comprises the following steps:
a. each sub-device is in a silent receiving state at the initial stage of system starting and waits for the device with the highest priority to transmit time slot information;
b. when the highest priority device transmits a starting time slot, each sub-device sequentially transmits broadcast information according to the priority order, and the information lasts for a super frame;
c. each piece of sub equipment acquires the current connection condition according to the broadcast information to form a routing table, and loads the routing table into a link frame for transmission;
d. acquiring the current channel condition according to the channel monitoring state to evaluate the frequency modulation path;
e. completing networking and route distribution in the time of the first frame;
f. each piece of sub-equipment enters a monitoring mode and waits for own transmitting time slot;
the channel monitoring flow comprises the following steps:
a. detecting radio signals in a frequency band of 400 MHz-750 MHz detected by AD9361 sweep frequency in real time; the available transmission bandwidth is 150MHz in total and is divided into 20 transmission channels, each transmission channel occupies 7.5MHz transmission bandwidth, and the channels are accessed by adopting a FDD frequency division multiple access mode;
b. sequentially reporting the current radio spectrum characteristic diagrams of each link management frame 0-5 in a super frame according to the priority order;
c. the highest priority equipment gathers and analyzes the radio signal spectrum interference condition of the equipment and each sub-equipment to obtain an optimal communication channel, and notifies each sub-equipment to change the communication channel in a 6 th link management frame, wherein the 7 th link management frame, the 8 th link management frame and the 9 th link management frame are used for relay transmission;
d. if the channel is detected to have strong interference information, each piece of sub equipment in the normal communication system can not perform channel switching according to a fixed channel table stored locally, switch to each standby channel for data communication, and re-networking, enter networking and establish a routing flow.
2. The anti-interference stable high-speed ad hoc network communication method according to claim 1, wherein the specific process of the device start-up procedure is as follows:
a. the wireless ad hoc network equipment is started up, powered on and initialized, and all parameters are initialized according to default configuration of a system;
b. starting a self-checking flow, automatically receiving a test signal, detecting the communication state of a transmitting and receiving link, feeding back state information, and feeding back a fault code if a fault exists;
c. detecting current equipment control state information, combat readiness/peace, voice/command;
d. waiting for a user to input a control instruction, and adopting default configuration if waiting for overtime;
e. adjusting equipment parameters according to the user input instruction, and adjusting working mode, communication channel, frequency modulation interval and frequency modulation frequency band parameters;
f. waiting for the networking phase to be entered.
3. The method of claim 1, wherein the signal code modulation process is a signal code waveform processing process in the signal processing subsystem.
4. The anti-interference stable high-speed ad hoc network communication method according to claim 1, wherein the signal relay transmission procedure comprises the following steps:
a subframe has 12 slots in total, wherein the first six slots are used for broadcast transmission, and the last 6 slots are used for relay transmission, and the flow is as follows:
a. selecting an optimal relay path according to the route connection, and calculating the hop count;
b. waiting for transmitting time slot relay forwarding according to each sub-device of the optimal path;
c. and after the forwarding is finished, the relay state is exited.
5. The anti-interference stable high-speed ad hoc network communication method according to claim 1, wherein the method comprises the steps of: the sub-equipment is other wireless networking equipment.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103906044A (en) * | 2014-03-04 | 2014-07-02 | 杭州迅龙科技有限公司 | Networking method of wireless electricity consumption information acquisition ad hoc network |
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| CN103906044A (en) * | 2014-03-04 | 2014-07-02 | 杭州迅龙科技有限公司 | Networking method of wireless electricity consumption information acquisition ad hoc network |
Non-Patent Citations (1)
| Title |
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| "基于定向天线的无人机自组网路由协议研究";董航等;《电子测量技术》;第41卷(第18期);全文 * |
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