Title :
Uniform Energy Consumption through Adaptive Rate Communications in Cooperative MIMO based Wireless Sensor Networks
Author :
Ahmed, Irfan ; Peng, Mugen ; Wang, Wenbo
Author_Institution :
Wireless Signal Process. & Network Lab., Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
We present an adaptive rate communication in conjunction with cooperative MIMO for uniform energy load distribution in wireless sensor networks (WSN). The inherent data flow structure of WSN causes uneven load distribution in the network. The transit nodes and the nodes near the base station (BS) carry more network traffic load than the other nodes in the network. We have analyzed the cooperative MIMO based WSN and found that transmission rate and constellation size can effectively control the energy consumption without violating the required bit error rate (BER). Simulation results show that cooperative MIMO in conjunction with adaptive transmission rate in multi hop communication renders a uniform network load in all hops.
Keywords :
MIMO communication; error statistics; telecommunication traffic; wireless sensor networks; adaptive rate communications; base station; bit error rate; cluster-based multihop WSN; cooperative MIMO based WSN; data flow structure; energy consumption; network traffic; uniform energy load distribution; wireless sensor networks; Adaptive signal processing; Analytical models; Base stations; Bit error rate; Communication system control; Energy consumption; MIMO; Size control; Telecommunication traffic; Wireless sensor networks;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.675
