BER-delay characteristics analysis of IEEE 802.15.4 wireless sensor networks with cooperative MIMO
- Publication Type:
- Conference Proceeding
- 2007 Asia-Pacific Conference on Applied Electromagnetics Proceedings, APACE2007, 2007
- Issue Date:
This paper presents a study of the impact of transmission delay differences between co-operating nodes on bit error rate performance and energy consumption of wireless sensor networks. We consider a wireless sensor network using an Alamouti virtual MIMO (multiple-input multiple-output) configuration between collaborating nodes operating in quasi-static Rayleigh flat-fading channels. Our results show that above certain delay difference (in the range above 0.75Tb), the traditional non-cooperative approach is more energy-efficient than the cooperative strategy and that the transmission delay difference has the most significant on the transmission energy consumption in the delay range of below 0.75Tb. © 2007 IEEE.
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