Energy Minimization in Cooperative wireless Sensor Networks with Relay

P Karthik

Abstract


In wireless sensor networks (WSNs), cooperative communication represents a potential candidate to combat the effects of channel fading by exploiting diversity gain achieved via cooperation among the relays nodes. However, for the energy-constrained WSN, to what extent cooperative communication can save energy consumption for a successful packet transmission is still unknown. Energy efficiency of cooperation and direct transmission schemes in WSN is studied and compared in this paper. The expressions of energy efficiency of the two schemes are derived, respectively. The numerical results reveal that for the small distance separation between the source and destination nodes, the direct transmission scheme is more energy efficient than cooperation and the relay location, packet size, and modulation level have important effects on energy efficiency. At last, energy efficiency maximization for the cooperative communication system is achieved by optimizing both the packet size and modulation level jointly

References


IF Akyildiz, W Su, Y Sankarasubramaniam, E Cayirci, A survey on sensor networks. IEEE Communications Magazine 40(8), 102–105 (2002). Publisher Full Text

A Sendonaris, E Erkip, B Aazhang, User cooperation diversity—part I: system description. IEEE Transactions on Communications 51(11), 1927–1938 (2003). Publisher Full Text

A Sendonaris, E Erkip, B Aazhang, User cooperation diversity—part II: implementation aspects and performance analysis. IEEE Transactions on Communications 51(11), 1939–1948 (2003). Publisher Full Text

JN Laneman, DNC Tse, GW Wornell, Cooperative diversity in wireless networks: efficient protocols and outage behavior. IEEE Transactions on Information Theory 50(12), 3062–3080 (2004). Publisher Full Text

JN Laneman, GW Wornell, Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks. IEEE Transactions on Information Theory 49(10), 2415–2425 (2003). Publisher Full Text

A Stefanov, E Erkip, Cooperative coding for wireless networks. IEEE Transactions on Communications 52(9), 1470–1476 (2004). Publisher Full Text

H Ochiai, P Mitran, HV Poor, V Tarokh, Collaborative beamforming for distributed wireless ad hoc sensor networks. IEEE Transactions on Signal Processing 53(11), 4110–4124 (2005)

A Bletsas, A Khisti, DP Reed, A Lippman, A simple cooperative diversity method based on network path selection. IEEE Journal on Selected Areas in Communications 24(3), 659–672 (2006)

MM Fareed, UM Murat, On relay selection for decode-and-forward relaying. IEEE Transaction on Wireless Communications 8(7), 3341–3346 (2009)

DS Michalopoulos, GK Karagiannidis, Performance analysis of single relay selection in rayleigh fading. IEEE Transactions on Wireless Communications 7(10), 3718–3724 (2008)

L Song, D Hatzinakos, Cooperative transmission in poisson distributed wireless sensor networks: protocol and outage probability. IEEE Transactions on Wireless Communications5(10), 2834–2843 (2006)

M Safari, M Uysal, Cooperative diversity over log-normal fading channels: performance analysis and optimization. IEEE Transactions on Wireless Communications 7(5), 1963–1972 (2008)

SS Ikki, MH Ahmed, Performance of cooperative diversity using equal gain combining (EGC) over Nakagami-m fading channels. IEEE Transactions on Wireless Communications 8(2), 557–562 (2009)

Y Sankarasubramanian, IF Akyildiz, SW McLaughlin, Energy efficiency based packet size optimization in wireless sensor networks. Proceedings of the 1st IEEE International Workshop on Sensor Network Protocols and Applications, 2003, Anchorage, Alaska, USA, 1–8

Q Zhao, L Tong, Energy efficiency of large-scale wireless networks: proactive versus reactive networking. IEEE Journal on Selected Areas in Communications 23(5), 1100–1112 (2005)

T Shu, M Krunz, S Vrudhula, Joint optimization of transmit power-time and bit energy efficiency in CDMA wireless sensor networks. IEEE Transactions on Wireless Communications 5(11), 3109–3118 (2006)


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