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Routing Protocol in Multi-Interface Multi-Channel Wireless Mesh Networks

Author: ZhaoSanQian
Tutor: YuanWei
School: Huazhong University of Science and Technology
Course: Communication and Information System
Keywords: Wireless Mesh Networks Routing Protocol Multi-channel Routing metrics
CLC: TN929.5
Type: Master's thesis
Year: 2011
Downloads: 23
Quote: 0
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Abstract


Wireless Mesh Network is a new generation of wireless networks , the most potential members to replace existing wired network . However, the network throughput of wireless Mesh network also far less than the demand of the market , the fundamental reason is that this single channel wireless Mesh network does not have full use of frequency resources . Multiple network interfaces to improve the utilization rate of channel switching channel has attracted widespread attention in recent years as a new research direction . With the development of communication technology , wireless communication equipment costs have been declining. Multi-antenna , multi-interface hardware devices in the near future will become the mainstream of the market . However, the development phase of the current routing protocols for the development of hardware behind . Currently , the mainstream wireless network routing protocols are still single- channel protocol . This routing protocol does not make full use of the available spectrum resources , and its performance was constrained by poor performance of the multi- interface multi-channel wireless mesh network . Firstly, multi-interface multi-channel wireless MESH network and routing protocols are reviewed . Describes the main features of the multi-interface multi-channel wireless MESH network , while multi-channel routing definition and related concepts , and elaborated on the the routing key metrics design . The link location routing performance improvement of multi-channel routing metrics WETTP comprehensive consideration by the full path of the transmission delay out of the poor performance of the path . Based WETTP routing metrics , paper designs and implements a multi-channel routing the agreement ( MC_PASR ) . Finally , software simulation comparison data arrival rate of MC_PASR , and MR_LQSR routing protocols , the throughput in value , the average TCP retransmission number and average MAC layer retransmission times . The simulation results show MC_PASR an effective multi-channel routing protocols , network throughput is increased by 50% over a 15-20% reduction in the number of retransmission .

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