Wireless Communications
A novel cluster-based cooperative MIMO scheme for multi-hop wireless sensor networks
EURASIP Journal on Wireless Communications and Networking
IEEE Transactions on Wireless Communications
On relay selection for decode-and-forward relaying
IEEE Transactions on Wireless Communications
Collaborative beamforming for distributed wireless ad hoc sensor networks
IEEE Transactions on Signal Processing
Virtual MIMO-based cooperative communication for energy-constrained wireless sensor networks
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Joint Optimization of Transmit Power-Time and Bit Energy Efficiency in CDMA Wireless Sensor Networks
IEEE Transactions on Wireless Communications
Cooperative diversity over log-normal fading channels: performance analysis and optimization
IEEE Transactions on Wireless Communications - Part 2
Performance analysis of single relay selection in rayleigh fading
IEEE Transactions on Wireless Communications
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
IEEE Communications Magazine
Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks
IEEE Journal on Selected Areas in Communications
Energy efficiency of large-scale wireless networks: proactive versus reactive networking
IEEE Journal on Selected Areas in Communications
A simple Cooperative diversity method based on network path selection
IEEE Journal on Selected Areas in Communications
Energy aware error control in cooperative communication in wireless sensor networks
Proceedings of the 2013 Research in Adaptive and Convergent Systems
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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 inWSN 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.