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Wireless multimedia sensor network-oriented multipath and multistage routing method

A technology of multimedia sensors and hierarchical routing, applied in the field of multimedia data stream transmission, can solve the problem of high real-time requirements of multimedia streams, and achieve the effects of extending network life cycle, ensuring real-time performance and reliability, and increasing network throughput.

Inactive Publication Date: 2010-11-24
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] A method to solve the problem of high real-time requirements of multimedia streams

Method used

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  • Wireless multimedia sensor network-oriented multipath and multistage routing method
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  • Wireless multimedia sensor network-oriented multipath and multistage routing method

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Embodiment Construction

[0038] This method is an energy-aware hierarchical routing protocol based on geographic location. We assume that this sensor network (WSN) can be represented by a graph G(V, E), where V={v 1 , v 2 ,...,v n}, is a set composed of finite sensor nodes; E={e 1 , e 2 ,...,e n}, is a set composed of finite connections. The base stations are randomly deployed, and the positions of each sensor node and base station are fixed, which can be obtained by using the Global Position System (GPS). Each node has three states: 1) active node and available; 2) active node but unavailable; 3) dead node. Each connection has two states: available and unavailable; we assume that only the source node knows the location of the base station, and other nodes can only know the location information of the base station through the information carried in the exploration packet sent from the source node; this method The implementation is divided into three stages: i) the establishment of the neighbor n...

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Abstract

The invention discloses a wireless multimedia sensor network-oriented multipath and multistage routing method, which represents a technical scheme for multimedia data stream transmission in a wireless multimedia sensor network (WMSN) and is mainly used to solve the real-time transmission problem of multimedia streams and prolong network life as long as possible. The method is characterized in that: multiple paths are built to transmit data from a source node to a target node in the WMSN in parallel; and a hierarchical energy-aware routing protocol is adopted to differentiate the specific characteristics of multimedia flows and provide higher service quality to the multimedia flows.

Description

technical field [0001] The present invention is a technical solution for multimedia data stream transmission in Wireless Multimedia Sensor Networks (WMSN), mainly used to solve the problem of real-time transmission of multimedia streams, and prolong the network life cycle as much as possible, belonging to computer wireless communication technology field. Background technique [0002] In recent years, wireless sensor network (Wireless Sensor Networks, WSN) routing technology mainly focuses on the transmission of scalar data. Recently, the transmission of video and audio streams (that is, multimedia streams) and the transmission of scalar data (such as temperature, humidity, etc.) have been added to traditional wireless sensor networks, which poses new challenges to traditional wireless sensor routing protocols. [0003] The routing protocol is responsible for forwarding data packets from the source node to the destination node through the network. It mainly includes two func...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W40/20H04W40/24H04W84/18H04L29/06
CPCY02B60/50Y02B60/42Y02D30/00Y02D30/70
Inventor 孙力娟杨攀峰肖甫郭剑王汝传黄海平沙超叶宁蒋凌云黄小桑
Owner NANJING UNIV OF POSTS & TELECOMM
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