Distributed routing protocol based on reliable path

A distributed and routing technology, applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve the problems that the Adhoc network routing protocol cannot meet the requirements of adapting to the dynamic network and small transmission delay at the same time, so as to reduce the network propagation delay and reduce the network delay. delayed effect

Inactive Publication Date: 2011-08-17
BEIHANG UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to provide a distributed routing protocol (DBRP) based on a reliable path for the existing Ad hoc network routing protocol that cannot satisfy the technical defects of adapting to a dynamic network and having a small transmission delay at the same time. On the basis of the selection protocol SSR protocol, the direct data transmission function of AODV is added; and for the dynamic network where SSR is not suitable for node movement, a routing information update mechanism is introduced

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  • Distributed routing protocol based on reliable path
  • Distributed routing protocol based on reliable path
  • Distributed routing protocol based on reliable path

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Embodiment Construction

[0044] The reliable path-based distributed routing protocol provided by the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0045] like figure 1 As shown, the distributed routing protocol based on the reliable path provided by the present invention is realized through the following specific steps:

[0046] Step 1. Each node in the network maintains a cost list of the target node.

[0047] like figure 2 The structure of the cost list is shown, where the entry destination records the target node ID, the entry sequence records the sequence number of the data packet received last time from the destination node, the entry hopcount records the number of hops required from the current node to the destination node, and the entry LLT records The lifetime of the link between two nodes, and the entry nexthop records the next-hop node ID.

[0048] Among them, the link lifetime time (LLT) is obtained by the following method: ...

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Abstract

The invention discloses a distributed routing protocol based on a reliable path, comprising the following steps: a cost list of a target node can be maintained by each node in a network; data is sent into the target node by a source node, route request stage is started, and a route request data packet is sent out; a route reply packet is sent by the target node which receives a route request node; and after receiving the reply packet, the source node begins to send data message to the target node. Based on the backward selection protocol (SSR protocol), the distributed routing protocol is added with AODV data direct transmission function, calculates the survival time for acquiring a link circuit by utilizing the position and the speed information of nodes aiming at the dynamic network where the SSR protocol does not adapt to the movement of the nodes, and introduces route information update mechanism, thus adapting to the characteristics of the dynamic network and reducing network delay.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, relates to a network layer routing method of an Ad Hoc network, in particular to a distributed routing protocol (DBRP) based on a reliable path. Background technique [0002] With the increasing popularity of portable computers and palmtop computers, the rapid development of wireless communication technology has driven the development of network protocols. The advancement of communication technology has made various wireless transmission networks (such as cellular networks and satellite networks) very popular, and equipment and services such as WLAN, GSM, PCS, CDMA and UMTS have appeared. Personal correspondence makes pressing demands. The new network and new application requirements lead to the design and research of Ad Hoc network, which can be applied in time. Ad Hoc network is a self-organizing wireless network that does not depend on fixed infrastructure. Its networking is c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04W84/18H04W40/24H04W40/02
Inventor 张军徐桢徐鹏程马赞
Owner BEIHANG UNIV
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