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Geographical position-based large-scale wireless distribution type network self-adaptive cooperative routing method

A distributed network and geographic location technology, applied in the field of large-scale wireless distributed networks, can solve the problems that long-distance connections cannot be directly realized, lack of effective support for long-distance connections, etc., to ensure the probability of successful routing, reduce network overhead, and prolong the lifetime Effect

Inactive Publication Date: 2014-04-16
XIDIAN UNIV
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Problems solved by technology

[0005] However, since the small-world phenomenon is only an ideal abstraction after all, it is suitable for relational networks, but in spatial wireless networks, due to the lack of effective support for long-distance connections, long-distance connections to friend nodes cannot be directly realized within one hop.

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  • Geographical position-based large-scale wireless distribution type network self-adaptive cooperative routing method
  • Geographical position-based large-scale wireless distribution type network self-adaptive cooperative routing method
  • Geographical position-based large-scale wireless distribution type network self-adaptive cooperative routing method

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Embodiment Construction

[0038] refer to figure 1 , the specific implementation steps of the present invention are as follows:

[0039]Step 1. Each node finds out its own neighbor nodes according to the geographical location information, establishes its own neighbor node table and maintains it.

[0040] (1a) The system is initialized, and each node randomly selects a moment in a short period of time to send a hello packet to the surroundings, and the hello packet is marked with its own node IP and geographic location;

[0041] (1b) When a node receives the hello packet, it searches its neighbor node table to see if the sending node of the hello packet is already in its own neighbor node table, and if so, updates the timestamp of the entry, otherwise, Create a new entry, add the node IP and geographic location of the hello packet to the entry, and insert the entry into its own neighbor node table, and the nodes in the neighbor node table are reachable by one hop;

[0042] (1c) Each node sends hello p...

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Abstract

The invention discloses a geographical position-based large-scale wireless distribution type network self-adaptive cooperative routing method, mainly aiming at solving the problems that the large-scale wireless distribution type network routing method is large in end-to-end time delay, multiple in route hop count, low in route success probability and hard to realize the practical application of small-world long-range connection. The method comprises the realization process: a node builds a neighbor node table, a friend node table and a friend route table according to a geographical position information and small-world theory; when a business is achieved, the node finds out a node which is nearest to a target node from the neighbor node and the friend node to be taken as a next hop node, wherein a data packet is directly transmitted if the found next hop node is the neighbor node, and the data packet is cooperatively transmitted to the friend node if the found next hop node is the friend node, and the process is repeated till that the target node is achieved. The performance of the large-scale wireless distribution type network is improved, and the method is applicable to the rousting process of the large-scale wireless distribution type network.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an adaptive collaborative routing method based on geographic location, which can be used in large-scale wireless distributed networks. Background technique [0002] In wireless distributed networks, to solve routing problems, there are usually several routing strategies such as active, passive, and geographic location information-assisted. However, when the scale of the network increases significantly, the exchange of routing information or the method of broadcast addressing will quickly exhaust network resources. [0003] With the continuous increase of wireless network scale, there are more and more restrictive factors in the design of routing protocols, and it is becoming more and more difficult to achieve various routing indicators of the network. With the development of satellite positioning technology, nodes want to obtain their own or network The geographic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/08H04W40/10
CPCY02D30/70
Inventor 盛敏任生凯张琰刘润滋李建东史琰李红艳侯蓉晖
Owner XIDIAN UNIV
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