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Research On Routing Protocol In Wireless Sensor Networks

Posted on:2014-01-23Degree:MasterType:Thesis
Country:ChinaCandidate:B Q TangFull Text:PDF
GTID:2248330395983796Subject:Signal and Information Processing
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Wireless sensor network is an intelligent network application system, which can realizecollection, fusion and data transmission. It compensates the regret of information acquisitiondifficulty in impenetrable region. Transmission efficiency, energy consumption and networklifetime are three key research directions since the appearance of wireless sensor network. It solvesthe problem of low energy consumption and network lifetime extension through improving energymulti-path and GEAR routing protocol in wireless sensor network.1. It Overviews the structure of network, the characteristics of network, the protocol stack andthe application of wireless sensor network, analyses the research focus of the current wirelesssensor network, studies all kinds of routing protocol of wireless sensor network.2. Improved method is proposed based on real-time and energy consumption problem ofcurrent energy multi-path routing protocol. The previous protocol chose the lowest communicationenergy consumption as optimal path, but the deviation of calculated and actual energy consumptionby its calculation method made the selected path is not an optimal path. The improved method onlyobtains real energy consumption, using routing hops to control real-time performance of thenetwork, and chooses low-actual energy consumption, high-residual energy and real-time path asoptimal path. Research shows that the improved method not only can consume network energy inbalance, but also release real-time performance, improve transmission efficiency.3. One solution is proposed to solve routing void and transmission energy consumption ofGEAR routing protocol. Sum value is used to note the number of lower cost neighbor node. If sumvalues of all lower cost neighbor nodes are zero, the node will be added in blacklist. Whiletransmitting message to event region, the lowest estimate non-zero sum value node which is not inblacklist will be selected as next one. Experiments show that this method help to avoid routing voidand save transmission energy consumption. When message transmitted in the event region, nodesfind the lowest cost neighbor node as parent node which records it as child node and select as thenext-hop node.
Keywords/Search Tags:wireless sensor network, energy multi-path routing protocol, geographical routingprotocol, routing void
PDF Full Text Request
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