CN107027192A - A kind of TDMA MANETs extended method and node gateway - Google Patents
A kind of TDMA MANETs extended method and node gateway Download PDFInfo
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- CN107027192A CN107027192A CN201710223637.0A CN201710223637A CN107027192A CN 107027192 A CN107027192 A CN 107027192A CN 201710223637 A CN201710223637 A CN 201710223637A CN 107027192 A CN107027192 A CN 107027192A
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
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Abstract
A kind of TDMA MANETs extended method, in the TDMA MANETs between the first subnet and the second subnet, data exchange is carried out by first node gateway, the first node gateway, which had both been registered in the first subnet, turns into a node of the first subnet, while being registered in the second subnet turns into a node of the second subnet again.Except first node gateway, data exchange is also carried out between the first subnet and the second subnet using Section Point gateway, the Section Point gateway, which had both been registered in the first subnet, turns into a node of the first subnet, while being registered in the second subnet turns into a node of the second subnet again.The present invention can carry out upgrading than relatively low cost to existing planar network agreement, avoid and realize the problem of multilayer MANET agreement real construction cycle is long.Data transfer is by the way of multiple gateway between subnet, and data transmission efficiency also has than larger lifting.
Description
Technical field
The invention belongs to wireless ad hoc network technical field, more particularly to a kind of TDMA MANETs extended method.
Background technology
In railway, explore, electric power, forestry, in the industry such as petrochemical industry, the application of MANET has following characteristics, network size ratio
Smaller, communication is abnormal frequent.Message is varied (voice, data, GPS, order, diagnosis etc.), and data have in network
There is lateral flow in portion, there is multicast sometimes, and unicast even the whole network broadcast, data reliability requires very high, it is impossible to wrong data,
Tuple evidence, or leakage data, message length comes and go, sometimes tens bytes, and hundreds of bytes are even sometimes
Thousands of bytes, are then continual data flow sometimes.
In the arrowband MANET agreement using TDMA, it is fixed that a subnet, which contains up to nodes, while effectively
Communication bandwidth is extremely limited.How to increase the nodes and efficient communication bandwidth of MANET, be a class highly studied
Topic.
In order to increase the scale of MANET, it certainly will need to be extended the number of node.Existing network expansion method
Typically all use hierarchical topology structure, this method the disadvantage is that,
1) protocol realization complexity is, it is necessary to realize cluster head election algorithm and cluster maintenance mechanism；
2) data between subnet need to carry out classification forwarding by cluster head, and cluster head can turn into the bottleneck of whole MANET.
In order to increase the efficient communication bandwidth of MANET, existing mode is usually the data compression side using higher level
Formula, or directly use instead and treat MANET.These implementations all have certain industry and equipment limitation.
For example, Application No. CN201110256511.6 patent document is disclosed, " one kind is based on distributed time-division multiple-access
The node method of network entry of wireless self-networking.The step of node method of network entry is：1st, new node is sent in wireless self-networking " networks
Request message "；2nd, the existing node evaluation network load condition of itself, judges whether to send that " networking allows to disappear to new node
Breath "；3rd, new node was received after " networking allows message ", recorded the routing iinformation up to the source address of the message；4th, new node
" networking allows message " received, the acceptable mini-slot of selection are analyzed, and sends " time slot received message " and is added their confirmation；5、
The node that " time slot received message " is received in network judges whether to discharge the time slot more than needed of oneself, and increases to the road up to new node
By information；6th, enter network process terminate ".Technical scheme disclosed in this document is exactly a kind of traditional TDMA ad hoc networks.
The content of the invention
There is provided a kind of TDMA MANETs extended method and node gateway for the defect in existing technology by the present invention.
A kind of TDMA MANETs extended method, for including railway, exploration, electric power, forestry or petrochemical industry private network, it is described from
Networking is the arrowband MANET using TDMA, and the nodes maximum that subnet contains is predetermined fixed value, in the TDMA from group
In net between the first subnet and the second subnet, data exchange is carried out by first node gateway, the first node gateway was both registered
Turn into a node of the first subnet in the first subnet, while a section as second subnet is registered in the second subnet again
Point.
Further, except first node gateway, also using Section Point gateway between the first subnet and the second subnet
Data exchange is carried out, the Section Point gateway, which had both been registered in the first subnet, turns into a node of the first subnet, while note again
Volume turns into a node of the second subnet in the second subnet.
A kind of TDMA self-organizing network nodes gateway, the node gateway is used for the first subnet and second in the TDMA MANETs
Data exchange between subnet, the node gateway, which had both been registered in the first subnet, turns into a node of the first subnet, while again
Being registered in the second subnet turns into a node of the second subnet, and described data exchange passes through in the node gateway
Portion's data channel is completed.
It is reciprocity to carry out all nodes in network extension, network using the present invention, it is only necessary to original plane net
Network agreement is modified, it is not necessary to the support of cluster head related protocol collection.Gateway device of the present invention has two sets of radio station, can be while work
Make in two subnets, each equipment simultaneously in two subnets is that data between the gateway of subnet, subnet can be with
Concurrently carried out by multiple gateways, it is not necessary to unified to be forwarded by cluster head.
Because Ad hoc network terminal equipment generally has two kinds of functions of main frame and router concurrently, implement with suitable complexity
Degree.The present invention can carry out upgrading than relatively low cost to existing planar network agreement, avoid and realize multilayer from group
The problem of fidonetFido reality construction cycle is long.Data transfer is by the way of multiple gateway between subnet, and data transmission efficiency also has ratio
Larger lifting.
Brief description of the drawings
Fig. 1 is the network integration schematic diagram of two subnets in one embodiment of the invention.
Fig. 2 is inter-network transmitting data stream journey figure between interior joint of the embodiment of the present invention.
Embodiment
Fig. 1 is one embodiment of the present of invention, is the network integration result schematic diagram of two subnets.A6-B5 nodes and A5-
B4 nodes are the gateways of the network, in subnet 1, it is seen that gateway is A5 and A6；In subnet 2, it is seen that gateway is B4 and B5.This
Plant networking mode and possess good robustness.If a damage in two gateways, it is not necessary to which network topology refreshes again, chain
Road is still unimpeded.Gateway quantity in two networks is more.Robustness after fusion is stronger.
Fig. 2 is the schematic diagram that sound cross network transmission data are carried out using Fig. 1 topologys, most short exemplified by transmitting data to B2 from A1
Path is A1-A2-A6-B5-B1-B2, and the data exchange of subnet 1 and subnet 2 is carried out by webmaster A6-B5.A6 and B5 are
Same equipment is in the difference numbering of different sub-network, and data exchange is to be carried out in same equipment by physical channel (USB/ serial ports)
, it is not necessary to the modulation /demodulation of radio frequency is carried out, TDMA each timeslice can be so made full use of, it is not necessary in the protocol
It is dedicated for the time that cluster head reserves data forwarding.If A6-B5 is damaged, this road of A1-A3-A4-A5-B4-B3-B2 can be selected
Footpath, although path it is remote some, data still can transmit smoothly.
Claims (3)
1. a kind of TDMA MANETs extended method, described from group for including railway, exploration, electric power, forestry or petrochemical industry private network
Net is the arrowband MANET using TDMA, and the nodes maximum that subnet contains is predetermined fixed value, it is characterised in that described
In TDMA MANETs between the first subnet and the second subnet, data exchange, the first node net are carried out by first node gateway
Close both to be registered in the first subnet and turn into a node of the first subnet, while being registered in the second subnet turns into the second subnet again
A node.
2. TDMA MANETs extended method as claimed in claim 1, it is characterised in that except first node gateway, also use
Section Point gateway carries out data exchange between the first subnet and the second subnet, and the Section Point gateway had both been registered in the first son
Turn into a node of the first subnet in net, while being registered in the second subnet turns into a node of the second subnet again.
3. a kind of TDMA self-organizing network nodes gateway, it is characterised in that the node gateway is used for first in the TDMA MANETs
Data exchange between subnet and the second subnet, the node gateway had both been registered in the first subnet a section as the first subnet
Point, while being registered in the second subnet turns into a node of the second subnet again, described data exchange is by the section
The internal data path of point gateway is completed.
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| CN201710223637.0A CN107027192A (en) | 2017-04-07 | 2017-04-07 | A kind of TDMA MANETs extended method and node gateway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535693A (en) * | 2019-08-12 | 2019-12-03 | 深圳亚联发展科技股份有限公司 | A kind of network is opened up and mends generation method, network is opened up and mends generation system and network structure |
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| US20040081178A1 (en) * | 2002-10-25 | 2004-04-29 | Nec Electronics Corporation | Network control device and control method and program thereof |
| CN1852163A (en) * | 2006-02-07 | 2006-10-25 | 华为技术有限公司 | Method and apparatus for realizing series-connection monitoring automatically |
| CN101155136A (en) * | 2006-09-29 | 2008-04-02 | 华为技术有限公司 | Method and system for implementing virtual gateway and virtual subnet |
| CN102665268A (en) * | 2012-04-09 | 2012-09-12 | 北京航空航天大学 | Distributed time synchronization method for hierarchical clustering wireless self-organized network |
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2017
- 2017-04-07 CN CN201710223637.0A patent/CN107027192A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040081178A1 (en) * | 2002-10-25 | 2004-04-29 | Nec Electronics Corporation | Network control device and control method and program thereof |
| CN1852163A (en) * | 2006-02-07 | 2006-10-25 | 华为技术有限公司 | Method and apparatus for realizing series-connection monitoring automatically |
| CN101155136A (en) * | 2006-09-29 | 2008-04-02 | 华为技术有限公司 | Method and system for implementing virtual gateway and virtual subnet |
| CN102665268A (en) * | 2012-04-09 | 2012-09-12 | 北京航空航天大学 | Distributed time synchronization method for hierarchical clustering wireless self-organized network |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110535693A (en) * | 2019-08-12 | 2019-12-03 | 深圳亚联发展科技股份有限公司 | A kind of network is opened up and mends generation method, network is opened up and mends generation system and network structure |
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