Design challenges for energy-constrained ad hoc wireless networks
IEEE Wireless Communications
Energy concerns in wireless networks
IEEE Wireless Communications
On energy efficiency and optimum resource allocation of relay transmissions in the low-power regime
IEEE Transactions on Wireless Communications
Virtual MIMO-based cooperative communication for energy-constrained wireless sensor networks
IEEE Transactions on Wireless Communications
Spectral efficiency in the wideband regime
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks
IEEE Journal on Selected Areas in Communications
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Cooperative communication systems that exploit spatial diversity to improve the performance of end-to-end communication in ad hoc wireless networks have gained a lot of attention in recent years. In this article, we examine the energy efficiency of a simple selective decode and forward (SDF) protocol. Different from previous studies on energy efficiency our analysis accounts for the imperfect regeneration at the relay. We show that the cooperative system using the SDF protocol can achieve higher energy efficiency than a single-input-single-output (SISO) transmission when the transmit-power consumed by the power amplifiers become higher than the total power consumed by the analog circuitry at the nodes.