BER-delay characteristics analysis of IEEE 802.15.4 wireless sensor networks with cooperative MIMO
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.
Bin Ahmad, M., Dutkiewicz, E. & Huang, X. (2007). BER-delay characteristics analysis of IEEE 802.15.4 wireless sensor networks with cooperative MIMO. 2007 Asia-Pacific Conference on Applied Electromagnetics: APACE 2007 (pp. 1-5). Malaysia: IEEE.