CN102547907A - Joint node network equipment used for mobile broadband multi-hop Ad Hoc network - Google Patents
Joint node network equipment used for mobile broadband multi-hop Ad Hoc network Download PDFInfo
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Abstract
The invention relates to joint node network equipment used for a mobile broadband multi-hop Ad Hoc network. The equipment comprises a quick deployment module, a gradient path module and a wireless link intelligent perception module, wherein the gradient path module is used for building neighbourhood between local nodes and other nodes and builds and maintains gradient routing to any nodes of the network by taking the neighbourhood as a basis, and provides the basis for data transmission; and the wireless link intelligent perception module is used for dynamically adjusting a physical layer to send parameters and reporting practical situations of a wireless link to an upper layer module, so as to enable the upper layer module to update the neighbourhood and route selecting. In the invention, the autonomously reaserched and developed gradient path module and the wireless link intelligent perception module are adopted, wherein the gradient path module achieves self configurating and self repairing functions of a link, is used for searching automatically and connecting adjacent wireless nodes, and automatically and quickly calculating out an optimal routing; the wireless link intelligent perception module can quickly perceive quick changes of the wireless link, improves the success rate of data transfer, provides the basis for intelligent routing, and quickly deploys efficient networking nodes.
Description
Technical field
The present invention relates to the communications field, specifically, relate to a kind of association node network equipment that is used for mobile broadband multi-hop MANET.
Background technology
Traditional mobile communications network typically refers to cellular mobile communication networks (general packet radio service gprs etc.) and WLAN (WLAN, WMAN) access network such as grade.In the cellular mobile communication networks, portable terminal is realized inserting based on fixing base station; Portable terminal is then mainly through access point (AP in the WLAN; Access Point) inserts fixed network.In fact the framework that the two all is based on center control has only a jumping on its Radio Link.They have network infrastructure, take centralized control, and for example cell mobile communication systems depends on the support of fixation means such as base station and mobile switching centre, and WLAN generally also is operated in the environment of AP.Yet for some special application scenarioss, the mobile communication technology that relies on infrastructure can't be competent at.For example earthquake is taking place, tissue rescue in time after the flood, in remote districts, reliable and operation etc. in the space environment.At these special application scenarioss, often lack the infrastructure of disposing in advance, perhaps be difficult to quick deployment, therefore press for new mobile communication technology, to support dynamically MANET fast.
Wireless self-networking is a kind of cordless communication network of special construction, and its communication relies on the mutual cooperation between the node, accomplishes the characteristic that has self-organizing and manage certainly with the wireless multi-hop mode.Yet traditional wireless network adopts the access way of wireless single-hop, and coverage is very little, and lower deployment cost is high.
Summary of the invention
The purpose of this invention is to provide a kind of weak point that traditional mobile communications network must rely on infrastructure that overcome, possess the association node network equipment that is used for mobile broadband multi-hop MANET of high covering, low cost, highly compatible and ambulant characteristics.
The objective of the invention is to realize like this:
A kind of association node network equipment that is used for mobile broadband multi-hop MANET comprises:
Physical layer is used the Multiband-multimode wireless transmission method, is used to accomplish the transmission and the reception of wireless signal;
Data link layer comprises Radio Link intelligence sensing module, is used for dynamically adjusting physical layer and sends parameter, and the actual conditions of Radio Link are reported to upper layer module, supplies it to upgrade neighborhood and Route Selection;
Network layer comprises the gradient paths module, is used to set up the neighborhood of local node and other nodes, and sets up and be maintained into the gradient route of network arbitrary node based on this, for transfer of data provides foundation;
Transport layer is used for to application layer reliable end-to-end service being provided, and makes upper strata and communication subnet isolated, and comes efficiently to utilize internet resource according to the characteristic of networking layer;
Application layer comprises quick deployment module, is used to provide the various application services to the user.
Wherein, the Multiband-multimode wireless transmission method of said physical layer use comprises modulation conciliation technology, signal processing technology, power control techniques and/or antenna technology.
Said Radio Link intelligence sensing module comprises: send the control submodule automatically, adopt the fast automatic adjustment of adaptive algorithm to send parameter; Link assessment submodule is used to assess link performance and reports to upper layer module, and neighbours detect and upgrade to assist it to carry out fast, and the route assessment; The congestion detection submodule is used to assess the link congestion situation, and reports to upper layer module, assists it to carry out the route adjustment according to congestion situation.
Said gradient paths module comprises: association node MANET route control submodule (MRC) and association node MANET neighbours control submodule (MNC).
Wherein, said association node MANET route control submodule comprises dormancy control module and the AM access module of multichannel multiple access.
Said dormancy control module comprises dormancy control algolithm module and dormancy routing algorithm module; Said dormancy control algolithm module is used for redundant node is judged; Do not influencing network coverage quality, avoiding causing under the prerequisite in network division and route cavity node is controlled dormancy; Said dormancy routing algorithm module adopts the routing policy of estimating more, with link-quality, energy and the extension main target as Route Selection, for data provide the high-quality route, improves the robustness of network.
The AM access module of said multichannel multiple access increases timeslot number when node sends collision, reduce timeslot number when collision alleviates, and to improve the throughput of channel, reduces the average message time delay, reduces the average message loss ratio.
Further, said dormancy control algolithm module comprises regional dormancy control module and distributed sleep control module.Zone dormancy control module; Be used for the node that the position is very approaching with bunch form combine; In bunch only node be in the operating state of activation, other node transfers resting state to, said bunch of interior nodes carries out with the mode of repeating query that the periodicity dormancy is judged and alternately dormancy; The distributed sleep control module; Be used to judge whether non-cluster knot point is redundant node; According to the information of neighbor nodes of collecting self regional environment of living in is analyzed; If not the sensing range of cluster knot point is covered by neighbor node with certain acceptable coverage rate, promptly this non-cluster knot point is judged as redundant node.
The present invention is owing to adopted technique scheme; Compared with prior art have following beneficial effect: the present invention adopts the gradient paths module and the Radio Link intelligence sensing module of independent research; The former realizes link self-configuring and self-regeneration function, searches for automatically and connects contiguous radio node, automatically calculating optimum route etc. fast; The latter is the quick variation of cognitive radio link fast then; Improve the success rate that data transmit, and, dispose effective networking node fast for intelligent Path selection provides the basis.
Description of drawings
Through following embodiments of the invention and description taken together with the accompanying drawings, other advantage of the present invention and characteristic are shown, this embodiment provides with the form of instance, but is not limited to this, wherein:
Fig. 1 is the structural representation of equipment according to the invention;
Fig. 2 is the process box line chart that the multichannel multiple access of equipment according to the invention inserts;
Fig. 3 is the preferential process box line chart that inserts of equipment real time business node according to the invention;
Fig. 4 is equipment cluster according to the invention is carried out poll services to gateway a process box line chart;
Fig. 5 is equipment cluster according to the invention is carried out poll services to ordinary node a process box line chart;
Fig. 6 be equipment according to the invention an embodiment automatic transmission control submodule the work sketch map;
Fig. 7 is the process box line chart of the congestion detection submodule of equipment according to the invention;
Fig. 8 is after the quick deployment module of equipment according to the invention starts, operating state frame line chart.
Embodiment
A kind of association node network equipment that is used for mobile broadband multi-hop MANET, as shown in Figure 1, this equipment comprises: physical layer (PHY), use the Multiband-multimode wireless transmission method, be used to accomplish the transmission and the reception of wireless signal; Data link layer (MAC) comprises Radio Link intelligence sensing module, is used for dynamically adjusting physical layer and sends parameter, and the actual conditions of Radio Link are reported to upper layer module, supplies it to upgrade neighborhood and Route Selection; Network layer comprises the gradient paths module, is used to set up the neighborhood of local node and other nodes, and sets up and be maintained into the gradient route of network arbitrary node based on this, for transfer of data provides foundation; Transport layer is used for to application layer reliable end-to-end service being provided, and makes upper strata and communication subnet isolated, and comes efficiently to utilize internet resource according to the characteristic of networking layer; Application layer comprises quick deployment module, is used to provide the various application services to the user.
Wherein, the Multiband-multimode wireless transmission method of said physical layer use comprises modulation conciliation technology, signal processing technology, power control techniques and/or antenna technology.
Said Radio Link intelligence sensing module comprises automatic transmission control submodule, link assessment submodule and congestion detection submodule.Wherein, send the control submodule automatically, adopt the fast automatic adjustment of adaptive algorithm to send parameter.Link assessment submodule is used to assess link performance and reports to upper layer module, and neighbours detect and upgrade to assist it to carry out fast, and the route assessment.The congestion detection submodule is used to assess the link congestion situation, and reports to upper layer module, assists it to carry out the route adjustment according to congestion situation.
Said gradient paths module comprises: association node MANET route control submodule (MRC) and association node MANET neighbours control submodule (MNC).
Wherein, said association node MANET route control submodule comprises dormancy control module and the AM access module of multichannel multiple access.
Said dormancy control module comprises dormancy control algolithm module and dormancy routing algorithm module; Said dormancy control algolithm module is used for redundant node is judged; Do not influencing network coverage quality, avoiding causing under the prerequisite in network division and route cavity node is controlled dormancy; Said dormancy routing algorithm module adopts the routing policy of estimating more, with link-quality, energy and the extension main target as Route Selection, for data provide the high-quality route, improves the robustness of network.
Further, said dormancy control algolithm module comprises regional dormancy control module and distributed sleep control module.Zone dormancy control module; Be used for the node that the position is very approaching with bunch form combine; In bunch only node be in the operating state of activation, other node transfers resting state to, said bunch of interior nodes carries out with the mode of repeating query that the periodicity dormancy is judged and alternately dormancy; The distributed sleep control module; Be used to judge whether non-cluster knot point is redundant node; According to the information of neighbor nodes of collecting self regional environment of living in is analyzed; If not the sensing range of cluster knot point is covered by neighbor node with certain acceptable coverage rate, promptly this non-cluster knot point is judged as redundant node.
The AM access module of said multichannel multiple access increases timeslot number when node sends collision, reduce timeslot number when collision alleviates, and to improve the throughput of channel, reduces the average message time delay, reduces the average message loss ratio.
The quick method for arranging of the association node of a kind of mobile broadband multi-hop of the present invention MANET is:
As shown in Figure 8, after deployment module starts fast, be in recurrent state, its concrete job step is:
(1) disposes beginning;
(2) circulation is carried out according to configuration space;
(3) check local hop-by-hop link-quality to master control point;
(4) multihop path overall merit;
(5) light a lamp according to comprehensive evaluation value;
(6) dispose end.
Automatically send the control submodule and dynamically adjust physical layer transmission parameter (referring to shown in Figure 6); Link assessment submodule assessment link performance also reports to upper layer module; Neighbours detect and upgrade to assist it to carry out fast, and the route assessment, congestion detection submodule assessment link congestion situation; And report to upper layer module, assist it to carry out the route adjustment according to congestion situation.
Wherein, the workflow of said link assessment submodule may further comprise the steps:
1. module is the cycle with 50ms, attempts different transmission parameter combinations;
2. the data that obtain according to statistics are sent parameter corresponding transmission success rate and the actual bandwidth that can reach to difference and are calculated;
3. select wherein optimum transmission parameter to carry out follow-up transmission;
4. if the noise level of the signal strength signal intensity of link and environment changes;
5. the adjustment of dynamically sending parameter adapts to.
The workflow of said congestion detection submodule may further comprise the steps, and is as shown in Figure 7:
1. confirm signal strength signal intensity and noise;
2. the parameter combinations of confirming initiatively to attempt is as combination to be selected;
3. analysis of history record finds the historical performance of combination to be selected;
4. judge whether that there is effective historical performance at least one group of combination to be selected, if then execution in step 5, if not, then select one group of still NA transmission parameter that is combined as;
5. relatively obtain the optimum combination to be selected of historical performance;
6. the combination to be selected that historical performance is optimum is compared with the optimal performance of NA combination still;
7. judge whether still NA combination better,, then select one group of still NA transmission parameter that is combined as if better, if not better, then use historical performance best be combined as the transmission parameter.
As shown in Figure 2, the concrete steps of multi-channel multi-address access method are following:
Step 1: the number of cluster decision reservation access slot is also announced;
Step 2: have the node that divides into groups to send to select the competition of reservation access slot to insert;
Step 3: judge whether this node successfully inserts, if successfully insert, then execution in step 4, if successfully do not insert, then execution in step 1;
Step 4: carry out poll services;
Step 5: whether have grouping accumulate, divide into groups to accumulate if having if judging by the node of poll, then execution in step 4; Do not divide into groups to accumulate if having, then execution in step 6;
Step 6: withdraw from poll services.
Increase timeslot number when node bumps in step 1, reduce timeslot number when collision alleviates, improved the throughput of channel, reduced the average message time delay, reduced the average message loss ratio; Simultaneously, just compete access through the node that has only traffic packets to send and use the poll channel, do not have the method that the professional node that sends is cancelled the qualification of busy channel, improved the utilance of network channel greatly.
The preferential process step that inserts of real time business node is as shown in Figure 3, comprising:
The competition of step 212. real time business node inserts (RA) time slot except that all reservations last, last RA time slot of non-real-time service node competition;
First RA time slot of step 216. supplies the new real time business node that inserts to use, and the non-real-time service node uses all RA time slots except that first;
After node successfully inserted, cluster was carried out poll services to gateway, and its process step is as shown in Figure 4, comprising:
Certain gateway of step 411. poll;
Whether step 414. judges cluster all gateways of poll, if then finish; If not, then execution in step 411.
The process step that cluster is carried out poll services to ordinary node is as shown in Figure 5, comprising:
Certain node of step 421. poll;
Whether step 425. judges cluster all nodes of poll, if, then finish, if not, then execution in step 421.
The concrete job step of MANET neighbours control module (MNC) is following:
1. initialization begins
2. increase configuration information.
3. define neighbours' agreement rank cycle time
4. inquire about the time rank and the expired times in attitude cycle
5. respond the time rank and the expired times in attitude cycle
6. the time rank in refresh mode cycle
7. judge ossified attitude time-out time rank
8. initialization finishes
9. timer starts
10. link upgrades timed task obtains each link through the Radio Link sensing module communication quality evaluation.
Neighbours' optimum link is selected and the optimum neighbours of gradient route select 11. trigger.
12. detect the link communication state, if neighbours' link disappears, the optimum link of new neighbor more then.
13., and trigger the associated gradients routing update if neighbours do not have the efficient communication link then delete neighbours.
14. neighbours' agreement is sent timed task
15. gradient route timer work
16. the overtime deletion route of inspection route
17. the overtime deletion route of inspection inquiry failure route
18. send the gradient routing protocol packet
19. receive neighbours' protocol massages: set up neighbours' link relation
20. reception routing protocol packet:
21. inquiry and response message are set up route
22. safeguard route through upgrading message
23. neighbours control end.
Claims (6)
1. association node network equipment that is used for mobile broadband multi-hop MANET is characterized in that this equipment comprises:
Physical layer is used the Multiband-multimode wireless transmission method, is used to accomplish the transmission and the reception of wireless signal;
Data link layer comprises Radio Link intelligence sensing module, is used for dynamically adjusting physical layer and sends parameter, and the actual conditions of Radio Link are reported to upper layer module, supplies it to upgrade neighborhood and Route Selection;
Network layer comprises the gradient paths module, is used to set up the neighborhood of local node and other nodes, and sets up and be maintained into the gradient route of network arbitrary node based on this, for transfer of data provides foundation;
Transport layer is used for to application layer reliable end-to-end service being provided, and makes upper strata and communication subnet isolated, and comes efficiently to utilize internet resource according to the characteristic of networking layer;
Application layer comprises quick deployment module, is used to provide the various application services to the user.
2. equipment as claimed in claim 1 is characterized in that, said Radio Link intelligence sensing module comprises:
Automatically send the control submodule, adopt the fast automatic adjustment of adaptive algorithm to send parameter;
Link assessment submodule is used to assess link performance and reports to upper layer module, and neighbours detect and upgrade to assist it to carry out fast, and the route assessment;
The congestion detection submodule is used to assess the link congestion situation, and reports to upper layer module, assists it to carry out the route adjustment according to congestion situation.
3. equipment as claimed in claim 1 is characterized in that, said gradient paths module comprises: association node MANET route control submodule (MRC) and association node MANET neighbours control submodule (MNC).
4. equipment as claimed in claim 3 is characterized in that, said association node MANET route control submodule comprises:
The dormancy control module comprises dormancy control algolithm module and dormancy routing algorithm module, and said dormancy control algolithm module is used for redundant node is judged; Do not influencing network coverage quality; Avoid causing under the prerequisite in network division and route cavity node is controlled dormancy, said routing algorithm module adopts the routing policy of estimating more, with link-quality, energy and the extension main target as Route Selection; For data provide the high-quality route, improve the robustness of network;
The AM access module of multichannel multiple access increases timeslot number when node sends collision, reduce timeslot number when collision alleviates, and to improve the throughput of channel, reduces the average message time delay, reduces the average message loss ratio.
5. equipment as claimed in claim 4 is characterized in that: said dormancy control algolithm module comprises:
Zone dormancy control module; Be used for the node that the position is very approaching with bunch form combine; In bunch only node be in the operating state of activation, other node transfers resting state to, said bunch of interior nodes carries out with the mode of repeating query that the periodicity dormancy is judged and alternately dormancy;
The distributed sleep control module; Be used to judge whether non-cluster knot point is redundant node; According to the information of neighbor nodes of collecting self regional environment of living in is analyzed; If not the sensing range of cluster knot point is covered by neighbor node with certain acceptable coverage rate, promptly this non-cluster knot point is judged as redundant node.
6. equipment as claimed in claim 1 is characterized in that: the Multiband-multimode wireless transmission method that said physical layer is used comprises modulation conciliation technology, signal processing technology, power control techniques and/or antenna technology.
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| CN107465612A (en) * | 2017-06-06 | 2017-12-12 | 中富通股份有限公司 | A kind of Radio Link backup scenario based on MANET |
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| CN111770551A (en) * | 2020-07-09 | 2020-10-13 | 南方电网科学研究院有限责任公司 | Method, system and equipment for communication between gateways of high-dynamic uncertain link |
| CN115002093A (en) * | 2022-05-30 | 2022-09-02 | 中国船舶重工集团公司第七二二研究所 | Method for internal and external remote communication in complex mobile scene |
| CN115412484A (en) * | 2021-05-28 | 2022-11-29 | 中国石油天然气股份有限公司 | Data transmission device, data transmission system and data transmission method |
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Application publication date: 20120704 |