Title :
Coded diversity for cooperative MISO based wireless sensor networks
Author :
Asaduzzaman ; Kong, Hyung Yun
Author_Institution :
Dept. of Electr. Eng., Univ. of Ulsan, Ulsan, South Korea
fDate :
7/1/2009 12:00:00 AM
Abstract :
Motivated by the recent works on cooperative MIMO, this letter presents a coded diversity based cooperative protocol for wireless sensor networks. In densely deployed sensor networks, nearby nodes form a cluster of virtual antenna array to provide independent fading paths. The source node encodes the information bits with any channel code and forwards a portion of the codeword towards the cooperating nodes. The source and the cooperating nodes transmit different portion of the codeword to achieve a coded diversity at destination. Analysis and simulation show that our proposal can achieve full diversity when code rate is below a certain threshold.
Keywords :
diversity reception; fading channels; protocols; wireless sensor networks; channel code; coded diversity; coded diversity based cooperative protocol; cooperative MISO; fading channel; source node; virtual antenna array; wireless sensor networks; Antenna arrays; Fading; Forward error correction; Frequency division multiaccess; MIMO; Proposals; Sensor arrays; Time division multiple access; Transmitting antennas; Wireless sensor networks; Wireless sensor network, cooperative MISO, fading channel, coded diversity.;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2009.090665
