Fundamentals of wireless communication
Fundamentals of wireless communication
Modulation selection from a battery power efficiency perspective: a case study of PPM and OOK
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Energy-constrained modulation optimization
IEEE Transactions on Wireless Communications
Battery-powered digital CMOS design
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
IEEE Communications Magazine
Wireless Personal Communications: An International Journal
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Relay network is proposed as a means of improving the error performance and energy efficiency of the wireless networks. Inspired by the battery power efficiency (BPE) analysis in [1], relay selection from the battery energy efficiency perspective turns out to be an interesting topic. Under the general network setup which integrates typical transmission and reception modules, we adopt the realistic nonlinear battery model, extend the BPE results in [1] to relay network over Rayleigh fading channels, investigate the optimum and suboptimum energy allocation solutions for the relaying transmission, and finally establish the relay selection criterion from the battery energy efficiency point of view. Both the theoretical derivation and numerical results show that, subject to the same average bit error rate (BER) performance constraint, relaying does not necessarily increase the system energy efficiency, but is a possible alternative of the direct transmission depending on the relaying situation. Additionally, we prove that the two relaying protocols Decode and Forward (DF) and Amplify and Forward (AF) are equivalent for relay selection over Rayleigh fading channels at high SNR.