Virtual MIMO Protocol Based on Clustering for Wireless Sensor Network
ISCC '05 Proceedings of the 10th IEEE Symposium on Computers and Communications
Cross-layer design of energy-constrained networks using cooperative MIMO techniques
Signal Processing - Special section: Advances in signal processing-assisted cross-layer designs
An Energy-efficient Multihop Cooperative Transmission Protocol Design for Sensor Networks
LCN '07 Proceedings of the 32nd IEEE Conference on Local Computer Networks
An application-specific protocol architecture for wireless microsensor networks
IEEE Transactions on Wireless Communications
Virtual MIMO-based cooperative communication for energy-constrained wireless sensor networks
IEEE Transactions on Wireless Communications
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks
IEEE Journal on Selected Areas in Communications
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Cooperative transmission technique is now widely considered as a promising approach to combat fading and achieve energy efficiency in wireless networks. In this paper we focus on the routing problem in energy-constrained wireless sensor networks (WSNs), of which a cooperative MISO-based routing strategy is adopted. We first analyze the physical layer energy consumption model of cooperative transmission in the scenarios of one hop and hop-to-hop for energy-efficient routing in order to prolong the network lifetime. Based on this analysis, we disclose how the energy-efficient network routing problem is tightly related to the inter-cluster MISO node and hop-to-hop relay node selection. As we noticed, the problem of energyefficient cooperative routing is NP-hard innately which is difficult to implement in a totally distributive approach. Due to these analysis, a feasible algorithm with minimum cost is thus proposed. In the simulation part, we prove that our protocol can prolong the network lifetime tremendously when choose appropriate transmission parameters. Moreover, as an example, we simulate a typical network scenario which indicates our protocol is more energy efficient when comparing with vMIMO scheme in our previous work.