Title :
Effect of Synchronization Errors on Alamouti Coding in Wireless Sensor Networks
Author :
Wan, Haitao ; Diouris, Jean-François ; Andrieux, Guillaume
Author_Institution :
IREENA, Univ. of Nantes, Nantes
Abstract :
Cooperative transmission using space time codes can be used to reduce transmission energy consumption for long range communication in wireless sensor networks (WSN). However, differing from traditional (multi-input-multi-output) MIMO systems, distributed cooperative communication systems in WSN usually lack of perfect synchronization. For the cooperative systems using Alamouti code, the effect of synchronization error on the receive bit error rate (BER) performance over Rayleigh fading channel is investigated in this paper. Taking also path loss effect and the propagation delay into account, the optimal transmit power allocation and the optimal reception areas are presented. The analytical and simulation results show that, for a small range of synchronization error and using the optimal transmit power allocation, the degradation of receive BER performance is negligible for some reception area.
Keywords :
Rayleigh channels; cooperative systems; error statistics; space-time codes; synchronisation; wireless sensor networks; Alamouti coding; BER; Rayleigh fading channel; cooperative transmission; energy consumption; long range communication; optimal reception; optimal transmit power allocation; path loss effect; propagation delay; receive bit error rate; space time code; synchronization error; wireless sensor network; Bit error rate; Cooperative systems; Energy consumption; Fading; MIMO; Performance analysis; Propagation delay; Propagation losses; Space time codes; Wireless sensor networks;
Conference_Titel :
Wireless Communications and Networking Conference, 2009. WCNC 2009. IEEE
Conference_Location :
Budapest
Print_ISBN :
978-1-4244-2947-9
Electronic_ISBN :
1525-3511
DOI :
10.1109/WCNC.2009.4917695
