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Power Controlled Network Protocols for Multi-Rate Ad Hoc Networks

Pan Li+, Qiang Shen*, Yuguang Fang+, and Hailin Zhang#

+: EE, Florida University

*:Southwest Jiaotong University

#: Xidain University

IEEE Transactions on Wireless Communications, Vol. 8, No. 4, April 2009

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Outline

• Introduction• Related Works• MRPC-MAC protocol• MRPC-Routing protocol• Simulation Results• Conclusions

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Introduction

• In wireless ad hoc networks– Power control

• Save energy• Increase spatial reuse

– Multi-Rate supported• Improve network throughput

– What is right next hop relay??• Routing protocol

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Related Works

• Power controlled MAC– Save the energy– Increase the throughput

• Power controlled Routing– Find an end-to-end path with saving energy

• Cross Layer Design– In this paper: MAC+ Routing protocol with power

control for multi-rate ad hoc network

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• STAs – Single radio– Single channel– Multi-Rate supported : ARF

• MAC transmission failures or successes– Maintenance information of neighboring nodes

i

Assumption

jk

m

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MRPC-MAC protocol

i j

k

m

ij

iti

rd

PCP

ID Pmin,1 … Pmin,M Pmax FTime

K 1mW … 1.7mW 1.2mW 150us

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MRPC-MAC protocol

• Overhearing RTS/CTS

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MRPC-Routing protocol

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MRPC-Routing protocol

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Simulation Results

• NS2.29

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Performance of MRPC-MAC

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Performance of MRPC-Routing

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MRPC Protocol

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Impacts of the number of nodes

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MRPC with mobility

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Conclusions

• A new power controlled cross-layer– MRPC-MAC– MRPC-Routing

• Improve the network throughput• Future work

– Optimal the end-to-end path

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Thank You.