CN105472689A - MAC layer neighbor node discovery method and platform based on MANET network - Google Patents
MAC layer neighbor node discovery method and platform based on MANET network Download PDFInfo
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- CN105472689A CN105472689A CN201510650467.5A CN201510650467A CN105472689A CN 105472689 A CN105472689 A CN 105472689A CN 201510650467 A CN201510650467 A CN 201510650467A CN 105472689 A CN105472689 A CN 105472689A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
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- H—ELECTRICITY
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- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0647—Synchronisation among TDM nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention provides an MAC layer neighbor node discovery method and platform based on an MANET network. The MAC layer neighbor node discovery method based on the MANET network comprises the three steps of: neighbor node searching, node time synchronization and node time slot distribution. The MAC layer neighbor node discovery platform based on the MANET network comprises a frequency conversion module (1), an MAC layer module (2) and an integrated service processing module (3), and the three parts are combined to form an integrated body. The method supports standard communication interfaces, the portability is high, and post expansion is supported. The method and platform can effectively solve the problems of hidden terminals and exposed terminals caused by omnidirectional antennas used in the prior art and meet the requirements that nodes in an Ad-Hoc network rapidly and efficiently searching for surrounding neighbor nodes and data transmission is high in speed; in addition, the method and the platform has the advantages that the design is reasonable, the method is reliable, the idea is innovative, the practicality is high, the operation is flexible and rapid, the integral structure is reasonable, etc.
Description
Technical field
The present invention is the realization of the method that finds of a kind of new neighbor node in mobile MSNET network field and platform thereof, and it is a kind of implementation method of the MAC layer in self-organizing network.
Background technology
In the field that some is special, as in breaking out of fire, floods, earthquake or suffer after other disasters hit, fixing communication network device can not normal operation; When being in remote or field locations (communication etc. between the unit executed the task in field scientific investigation, outlying mine operation, outlying district or member) network equipment that is fixing or that pre-set often cannot be relied on to communicate; Army's rapid deployment is to an area without any the network facilities, each unit needs to set up communication network etc. fast, this all needs to set up the reliable communication network that does not rely on any network facilities of setting up in advance efficiently rapidly, and can normally work under severe and special environment.This just needs a kind of movable self-organization technology not relying on static infrastructure and support, mobile ad hoc network is exactly one wherein.
MSNET network is the distributed network of a kind of non-stop layer node, all nodes all equality.Network has the characteristic of self-organizing, catastrophic failure is had to the repair ability of a bit; Node in network can arbitrarily movement, thus allow each node to communicate under the environment not having static infrastructure, network topology structure dynamic change, each node in movement can the neighbors of monitoring oneself initiatively, and the sensing network topology status of intelligence, determine best packet route dynamically, then data hop-by-hop is sent to destination node.The network communication quality caused for reasons such as the deteriorations because of network topology dynamic change, node catastrophic failure, wireless environment declines or interrupts, and mobile network has can provide corresponding solution.
Many good characteristics of MSNET network provide strong guarantee for it occupies one seat in the military and civilian communications field, almost relate to the various aspects in social production, from Military Application if aircraft, tank, individual soldier are to normal domestic consumer products, such as, automobile, notebook, mobile phone terminal etc., it is primary in mobile ad hoc network that what solve is exactly the neighbor uni-cast of node, the neighbor uni-cast of node is that MANET completes networking, route successfully forwards, the prerequisite of data communication etc. and basis, is key and the core technology of MANET.
Summary of the invention
The object of this invention is to provide a kind of efficiently, the method that finds of the MAC layer neighbor node based on MSNET network of reliable operation and platform, in the environment without any network facilities, node can find the neighbor node of surrounding fast and accurately, for the quickly networking of self-organizing network and communication provide powerful guarantee.
In order to achieve the above object, the technical scheme that this node adopts is:
Based on a MAC layer neighbor node discover method for MSNET network, comprise that neighbor node search, node time are synchronous, node slot time distributes three parts, respectively by S1, S2, S3 totally three steps complete:
Described step S1 mainly completes the search of neighbor node, and node finds the neighbor node around himself by search rate and switching direction;
Described step S2 mainly completes the time synchronized of node, and that this method adopts is TDMA, and time synchronized is basis, and node is synchronous with node deadline fiducial time in network;
Described step S3 mainly completes the dynamic time slot allocation of node, and the communication for node provides basis.
Described step S1 comprises again step S11 and S12, totally 2 steps, wherein:
Select a node as the host node of whole network in described step S11, residue node is all minor node, and host node is received and dispatched at perception slotted random, or with frequency F1 transmission time information, or scan by sector with frequency Fj;
In described step S12, minor node after powering, and be in time not synchronous always and determine receipts pattern, its directional antenna scans by frequency by sector, the temporal information of wait-receiving mode host node.
After node receives the information of neighbor node, the relevant information of record node, as node ID, node direction, nodal frequency etc.After minor node receives the temporal information of host node, determine that the level of minor node is 1, namely on host node level, 1 is added, after this minor node normally works according to frame structure, the time signal of host node is forwarded, and add corresponding hierarchical information, the rest may be inferred, and what set up thus is the topology network architecture of a classification, level.The level number of each node represents the jumping figure of this nodal distance root node.
Described step S2 comprises again step S21, S22 and S23, totally 3 steps, wherein:
When in described step S21, minor node receives the temporal information of host node, minor node just obtains the rough temporal information of host node this moment, and minor node enters thick synchronous regime, according to frame structure work in sequential, in sequential perception time slot section, according to random function determination reiving/transmitting state;
After host node receives the information of minor node in described step S22, send synchronous update information;
After minor node receives the synchronous update information of host node in described step S23, calculate precise time by synchronized algorithm poor, revise that oneself is poor with the precise time of host node, complete and the aliging of the time of host node.
Described step S3 comprises again step S31, S32, totally 2 steps, wherein:
The directed neighbor node idle traffic gap information of this node being sent to oneself of described step S31 interior joint, after neighbor node receives idle traffic gap information above, logic and operation is carried out with the idle traffic time slot of oneself, obtain public business time-slot, simultaneously by this common service time slot directive sending to the other side;
After described step S32 interior joint receives the common service time slot that its neighbor node sends over, using the service communication time slot of these common service time slots as oneself neighbor node therewith.
MAC layer neighbor node based on MSNET network finds a platform, and platform comprises frequency conversion plate module (1), ATOM core board module (2), Multiple Business Management module (3).Frequency conversion plate module (1) comprises 1 frequency conversion integrated circuit (11), and 1 frequency closes indicating member (13), 1 ADC conversion module (12); ATOM core board module (2) comprises 1 CPU (21), 1 transmitting-receiving frequency control unit (22), send out power control unit (23) for 1,1 personal-machine interface board (24), 1 FLASH module (25), a SDRAM (26); Multiple Business Management module (3), comprise 1 fpga chip (31), 1 intermediate frequency DAC signal processor (32), 1 USB serial ports (33), 1 Ethernet interface (34), a FLASH (35), 1 JTAG mouth (36), 1 AGC controls (37), 1 outside locating information interface (38), 1 SDRAM (39).
The MAC layer neighbor node discover method based on MSNET network that the present invention proposes and platform, software and platform all adopt modularized design, and interface standard is clear and definite.Software section neighbor node finds that based on module, for synchronisation of nodes module is laid the groundwork, synchronization module is core below, for following slots reservation provides time unifying accurately.The each module of software is all linked with one another, of a tightly knit structure, the method that neighbor node finds is run under the LINUX environment of ATOM plate, its result exported is delivered to physical layer development board and is carried out modulating or demodulation, the signal of modulation or demodulation is to L intermediate frequency or frequently control up and down, last signal delivers to radio frequency unit, controls omnidirectional antenna or directional antenna, completes transmitting-receiving and the parsing of data.
The present invention is based on the MAC layer feature of MSNET network, propose a kind of new neighbor node discover method and implementation platform thereof, the problem such as concealed terminal, exposed terminal run in traditional employing omnidirectional antenna effectively can be solved in the method and platform, can meet and search for surrounding neighbours node fast and efficiently at MANET interior joint, the directional antenna simultaneously adopted in platform makes node communication distance farther, and message transmission rate greatly increases.Simultaneously the present invention also have reasonable in design, method reliable, theory ground-breaking, have much practicality, flexible operation is quick, the features such as reasonable integral structure.
Accompanying drawing explanation
The three phases of Fig. 1 neighbor node discover method of the present invention
The flow chart of Fig. 2 neighbor node searching method of the present invention S11
The flow chart of Fig. 3 neighbor node searching method of the present invention S12
The flow chart of the bright synchronisation of nodes of Fig. 4 we
Fig. 5 node slot time distribution diagram of the present invention
Fig. 6 overall structure figure of the present invention
Explanation is met in figure
1 is L intermediate frequency Up/Down Conversion plate, and 1 frequency closes indicating member, 1 ADC conversion module;
2MAC layer CPU board (Atom), comprise 1 transmitting-receiving frequency control unit (22), send out power control unit (23), 1 personal-machine interface board (24) for 1,1 FLASH module (25), a SDRAM (26);
3 is physical layer LTE Baseband Processing Unit (FPGAVirtex6), comprise 1 fpga chip (31), 1 intermediate frequency DAC signal processor (32), 1 USB serial ports (33), 1 Ethernet interface (34), a FLASH (35), 1 JTAG mouth (36), 1 AGC controls (37), 1 outside locating information interface (38), 1 SDRAM (39).
Embodiment
Based in the MAC layer neighbor node discover method of MSNET network, neighbor discovering method is crucial, and node time is synchronously core, and business time-slot reservation is final goal, and this three phases is closely connected, and as shown in Figure 1, embodiment is as follows:
S11 step minor node in described step S1 finds the host node stage.Normally work according to frame structure after host node start, carry out Transmit enable at perception time slot according to random function, if the state of transmission, adopt omnidirectional antenna with F1 frequency transmission time information, anyway, adopt directional antenna to scan by sector with frequency Fj.If node is with GPS, also need a point situation to discuss, when having GPS, whether the destination of node wants the temporal information of acknowledged consistent with the temporal information of oneself.
The mode of operation of the S12 step minor node in described step S1.Be in after minor node start always and determine receipts pattern, its directional antenna carries out by sector scanning, and every 120ms time-switching direction, switches a secondary frequencies after having scanned 16 sectors, starts periodic duty after having switched 4 frequencies.Idiographic flow Fig. 2 is as follows.
Time synchronization between nodes is that object makes the time reference that in whole network, all nodes are consistent by sending and having come alternately of feedback time information between node, and synchronization principles is distinguished as shown in Figure 3 and Figure 4 with synchronous flow process.Be described with i level node A and i+1 level Node B:
In described step S21, i level node A is at t0 moment transmission time information, start to receive data until the complete data of t1 reception in the Node B of t ＇ 0 moment i+1 level, complete and send data to from i level node the one way that i+1 level node receives data transmission period, this process mainly comprises two class time delays: the time delay of transmit leg, the processing delay of recipient and propagation delay.It is (relevant with CPU and operating system etc. that the time delay of transmit leg comprises transmission delay, foreseeable, the size of data and the transfer rate of physical layer relevant, can predict), the time delay of recipient comprises receive time delay (having overlap with transmission delay) and receives processing delay (relevant with algorithm iteration number of times).I+1 level node can calculate the time difference of oneself and host node according to these time delays, is finally corrected this time difference, completes the thick step TEC time error correction of this node and host node;
In described step S22, i+1 level Node B is at t1 moment transmission time information, and i level node receives packet in the t2 moment, resolves temporal information wherein, and relevant temporal information is stored;
In described step S23, i level node A sends the time information data bag of earlier stored in the t3 moment, i+1 level Node B receives this packet in the t4 moment, resolves temporal information wherein, utilizes synchronized algorithm to calculate propagation delay difference, finally correct, the precise synchronization of deadline.
After the time slot alignment of two nodes, carry out secondary shake hands in the link setup stage, to preengage out a following public basic communication time slot in communication process so that the information interaction of completion timing shaking hands, time slot reservation flow process as shown in Figure 5.
Described step S31 interior joint sends to the neighbor node of oneself packet comprising free timeslot, after neighbor node receives this packet, neighbor node determines oneself and the Correspondent Node transceiver mode at basic communication time slot, neighbor node take out the other side in packet free timeslot, and carry out computing with the basic communication time slot of oneself, obtain the public basic communication time slot that the two is all idle, the common communication time slot calculated comprises and sends in the packet by neighbor node;
After described step S32 interior joint receives the common service time slot that its neighbor node sends over, using the service communication time slot of these common service time slots as oneself neighbor node therewith, the transmitting-receiving of data will be carried out at common service communication time slot.
As can be seen from Figure 6:
MAC layer neighbor node based on MSNET network finds a platform, and platform comprises frequency conversion plate module (1), ATOM core board module (2), Multiple Business Management module (3).Frequency conversion plate module (1) comprises 1 frequency conversion integrated circuit (11), and 1 frequency closes indicating member (13), 1 ADC conversion module (12); ATOM core board module (2) comprises 1 CPU (21), 1 transmitting-receiving frequency control unit (22), send out power control unit (23) for 1,1 personal-machine interface board (24), 1 FLASH module (25), a SDRAM (26); Multiple Business Management module (3), comprise 1 fpga chip (31), 1 intermediate frequency DAC signal processor (32), 1 USB serial ports (33), 1 Ethernet interface (34), a FLASH (35), 1 JTAG mouth (36), 1 AGC controls (37), 1 outside locating information interface (38), 1 SDRAM (39).
Realization based on the MAC layer neighbor node discover method of MSNET network runs on ATOM development board, under LINUX environment, neighbor node discover method C language realizes in upper MAC, also have other supplementary modules simultaneously, comprising: lower MAC module, business module, supervision control proxy module, supervision control module.Wherein, upper MAC completes the controlling functions such as neighbor node discovery, time synchronized, time slot reservation in agreement according to MAC protocol; Lower MAC module provides time-gap pulsing; Business module filters the data that service source provides, and coordinates with lower MAC the function providing data-flow-control; Supervision control agency provides data-interface function, encapsulates and process then to send to other modules to the data arriving this module; The running status of supervision control module to other modules is monitored.Each module interface as shown in Figure 6.
What deserves to be explained is that the main devices model that the present invention selects is followed successively by: the Up/Down Conversion module (1) of L intermediate frequency, MAC layer CPU module (2) (Inter atom series 1.6GHZAtomZ530, chipset adopts InterPoulsbo (US15W) SCHchipset,), integrated service module Xilinxxc6vlx240t (3), all the other are technical grade components and parts and fine finishining self-made components.
Frequently close indicating member (13) to be connected with the C33 pin of the integrated circuit (11) of frequency conversion, be connected with the B18 pin of ATOM core board CPU (21), realize exchange and the transmission of information; ADC conversion module (12) is undertaken by the A17 pin of C34 pin and fpga chip (33) alternately.
Pin C23, C19 of frequency conversion integrated circuit (11) are connected with transmitting-receiving frequency control unit (22), the pin 1,1 of sending out power control unit (23) respectively, and transmitting-receiving frequency control unit (22), a power control unit (23) carry out the mutual of control signal and data-signal by pin B11, B14 and cpu chip (21); Man-machine interface board (24), FLASH module (25) carry out data interaction by B31, B24 and CPU (21).
Intermediate frequency DAC signal processor (32), USB serial ports (33), Ethernet interface (34), FLASH (35), JTAG mouth (36) carries out the mutual of control information and data respectively by pin A17, A23, A31, A28, A12 and fpga chip 31; The A2 pin of fpga chip 33 is connected with the B35 pin of the CPU of ATOM plate and carries out exchanging of control information; The B36 of FIFO and the ATOM plate of fpga chip 33 is connected and carries out data interaction.
Above embodiment, is only better enforcement of the present invention, in order to technical characteristic of the present invention and exploitativeness to be described, and is not used to limit that we are bright applies for a patent right; Simultaneously above description, should understand for knowing those skilled in the art and be implemented, and therefore, other, not departing from the equivalent modifications or decoration that complete under bright the disclosed prerequisite of we, all should be included within described claim.
Claims (7)
1., based on a MAC layer neighbor node discover method for MSNET network, comprise neighbor node searching method, node time synchronous method, node slot time distribution method, respectively by step S1, S2, S3 totally three steps complete, it is characterized in that:
Described step S1 mainly completes the search of neighbor node, and node finds the neighbor node around himself by search rate and switching direction;
Described step S2 mainly completes the time synchronized of node, and that this method adopts is TDMA, and time synchronized is basis, and node is synchronous with node deadline fiducial time in network;
Described step S3 mainly completes the dynamic time slot allocation of node, and the communication for node provides basis.
2., as claimed in claim 1 based on the MAC layer neighbor node discover method of MSNET network, it is characterized in that:
Described step S1 comprises again step S11 and S12, totally 2 steps, wherein:
Select a node as the host node of whole network in described step S11, residue node is all minor node, and host node is received and dispatched at perception slotted random, or with frequency F1 transmission time information, or scan by sector with frequency Fj;
In described step S12, minor node after powering, and be in time not synchronous always and determine receipts pattern, its directional antenna scans by frequency by sector, the temporal information of wait-receiving mode host node;
After node receives the information of neighbor node, the relevant information of record node, as node ID, node direction, nodal frequency etc.; After minor node receives the temporal information of host node, determine that the level of minor node is 1, namely on host node level, 1 is added, after this minor node normally works according to frame structure, the time signal of host node is forwarded, and add corresponding hierarchical information, the rest may be inferred, and what set up thus is the topology network architecture of a classification, level; The level number of each node represents the jumping figure of this nodal distance root node.
3., as claimed in claim 1 based on the MAC layer neighbor node discover method of MSNET network, it is characterized in that:
Described step S2 comprises again step S21, S22 and S23, totally 3 steps, wherein:
When in described step S21, minor node receives the temporal information of host node, minor node just obtains the rough temporal information of host node this moment, and minor node enters thick synchronous regime, according to frame structure work in sequential, in sequential perception time slot section, according to random function determination reiving/transmitting state;
After host node receives the information of minor node in described step S22, send synchronous update information;
After minor node receives the synchronous update information of host node in described step S23, calculate precise time by synchronized algorithm poor, revise that oneself is poor with the precise time of host node, complete and the aliging of the time of host node.
4., as claimed in claim 1 based on the MAC layer neighbor node discover method of MSNET network, it is characterized in that:
Described step S3 comprises again step S31, S32, totally 2 steps, wherein:
The directed neighbor node idle traffic gap information of this node being sent to oneself of described step S31 interior joint, after neighbor node receives idle traffic gap information above, logic and operation is carried out with the idle traffic time slot of oneself, obtain public business time-slot, simultaneously by this common service time slot directive sending to the other side;
After described step S32 interior joint receives the common service time slot that its neighbor node sends over, using the service communication time slot of these common service time slots as oneself neighbor node therewith.
5. the MAC layer neighbor node based on MSNET network finds a platform, comprises up-converter module (1), MAC layer CPU module (2), and integrated service module (3) totally 3 parts combines formation entirety, it is characterized in that:
Described frequency conversion template die part 1 comprises 1 frequency conversion integrated circuit (11), 1 frequency closes indicating member (13), 1 ADC conversion module (12), frequently close indicating member (13) to be connected with the C33 pin of the integrated circuit (11) of frequency conversion, be connected with the B18 pin of ATOM core board CPU (21), realize exchange and the transmission of information; ADC conversion module (12) is undertaken by the A17 pin of C34 pin and fpga chip (33) alternately.
6. find platform based on the MAC layer neighbor node of MSNET network as claimed in claim 5, it is characterized in that:
Described ATOM core board module (2) comprises 1 CPU (21), 1 transmitting-receiving frequency control unit (22), send out power control unit (23) for 1,1 personal-machine interface board (24), 1 FLASH module (25), a SDRAM (26); Pin C23, C19 of frequency conversion integrated circuit (11) are connected with transmitting-receiving frequency control unit (22), the pin 1,1 of sending out power control unit (23) respectively, and transmitting-receiving frequency control unit (22), a power control unit (23) carry out the mutual of control signal and data-signal by pin B11, B14 and cpu chip (21); Man-machine interface board (24), FLASH module (25) carry out data interaction by B31, B24 and CPU (21).
7. find platform based on the MAC layer neighbor node of MSNET network as claimed in claim 5, it is characterized in that:
Described Multiple Business Management module (3) is modular construction, comprise 1 fpga chip (31), 1 intermediate frequency DAC signal processor (32), 1 USB serial ports (33), 1 Ethernet interface (34), a FLASH (35), 1 JTAG mouth (36), 1 AGC controls (37), 1 outside locating information interface (38), 1 SDRAM (39); Intermediate frequency DAC signal processor (32), USB serial ports (33), Ethernet interface (34), FLASH (35), JTAG mouth (36) carries out the mutual of control information and data respectively by pin A17, A23, A31, A28, A12 and fpga chip 31; The A2 pin of fpga chip 33 is connected with the B35 pin of the CPU of ATOM plate and carries out exchanging of control information; The B36 of FIFO and the ATOM plate of fpga chip 33 is connected and carries out data interaction.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454581A (en) * | 2016-05-31 | 2017-12-08 | 华为技术有限公司 | The method and the first website of concealed terminal are avoided the occurrence of in WLAN |
| CN109379158A (en) * | 2018-12-10 | 2019-02-22 | 浪潮电子信息产业股份有限公司 | Time synchronization method, device and equipment for newly added nodes in storage cluster |
| CN114885413A (en) * | 2022-04-18 | 2022-08-09 | 南京大学 | Ad-hoc network communication system, method and frame structure based on lightweight clock synchronization mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103685103A (en) * | 2013-11-26 | 2014-03-26 | 广州市花都区中山大学国光电子与通信研究院 | Integral verification platform based on FPGA communication base bands |
| CN104902577A (en) * | 2015-05-12 | 2015-09-09 | 西北工业大学 | Multi-channel multiple access method based on reliable multi-step channel reservation mechanism |
-
2015
- 2015-10-09 CN CN201510650467.5A patent/CN105472689A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103685103A (en) * | 2013-11-26 | 2014-03-26 | 广州市花都区中山大学国光电子与通信研究院 | Integral verification platform based on FPGA communication base bands |
| CN104902577A (en) * | 2015-05-12 | 2015-09-09 | 西北工业大学 | Multi-channel multiple access method based on reliable multi-step channel reservation mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 杨明月: "《中国优秀硕士学位论文全文数据库》", 15 April 2013 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454581A (en) * | 2016-05-31 | 2017-12-08 | 华为技术有限公司 | The method and the first website of concealed terminal are avoided the occurrence of in WLAN |
| CN107454581B (en) * | 2016-05-31 | 2020-09-04 | 华为技术有限公司 | Method for avoiding hidden terminal in wireless local area network and first station |
| CN109379158A (en) * | 2018-12-10 | 2019-02-22 | 浪潮电子信息产业股份有限公司 | Time synchronization method, device and equipment for newly added nodes in storage cluster |
| CN114885413A (en) * | 2022-04-18 | 2022-08-09 | 南京大学 | Ad-hoc network communication system, method and frame structure based on lightweight clock synchronization mechanism |
| CN114885413B (en) * | 2022-04-18 | 2024-07-23 | 南京大学 | Ad hoc network communication system, method and frame structure based on lightweight clock synchronization mechanism |
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Application publication date: 20160406 |