Title :
Energy-efficiency of dual-switched branch diversity receiver in wireless sensor networks
Author :
AL-Suhail, Ghaida A.
Author_Institution :
Dept. of Comput. Eng., Univ. of Basrah, Basrah, Iraq
fDate :
Nov. 30 2010-Dec. 2 2010
Abstract :
In this paper, we develop an analytical energy efficiency model using dual switched branch diversity receiver in wireless sensor networks in fading environments. To adapt energy efficiency of sensor node to channel variations, the optimal packet length at the data link layer is considered. Within this model, the energy efficiency can be effectively improved for switch-and-stay combiner (SSC) receiver with optimal switching threshold. Moreover, to improve energy efficiency, we use error control of Bose-Chaudhuri-Hochquengh (BCH) coding for SSC-BPSK receiver node compared to one of non-diversity NCFSK receiver of sensor node. The results show that the BCH code for channel coding can improve the energy efficiency significantly for long link distance and various values of high energy consumptions over Rayleigh fading channel.
Keywords :
BCH codes; Rayleigh channels; channel coding; diversity reception; energy conservation; radio receivers; wireless sensor networks; Bose-Chaudhuri-Hochquengh coding; NCFSK receiver; Rayleigh fading channel; SSC-BPSK receiver node; channel coding; dual-switched branch diversity receiver; energy-efficiency; error control; fading environments; high energy consumptions; optimal packet length; optimal switching threshold; switch-and-stay combiner receiver; wireless sensor networks; Bit error rate; Energy consumption; Energy efficiency; Fading; Modulation; Receivers; Wireless sensor networks; BCH coding; Diversity; Energy efficiency; Sensor networks;
Conference_Titel :
Energy, Power and Control (EPC-IQ), 2010 1st International Conference on
Conference_Location :
Basrah
Electronic_ISBN :
978-0-9568330-0-6
