Convex Optimization
Wireless Personal Communications: An International Journal
Geographic Random Forwarding (GeRaF) for Ad Hoc and Sensor Networks: Multihop Performance
IEEE Transactions on Mobile Computing
Relative location estimation in wireless sensor networks
IEEE Transactions on Signal Processing
Multinode Cooperative Communications in Wireless Networks
IEEE Transactions on Signal Processing
Diversity order analysis of the decode-and-forward cooperative networks with relay selection
IEEE Transactions on Wireless Communications - Part 2
Cooperative communications with relay-selection: when to cooperate and whom to cooperate with?
IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Joint optimization of power allocation and relay selection in cooperative wireless sensor networks
ANTS'09 Proceedings of the 3rd international conference on Advanced networks and telecommunication systems
Spare node cooperative method for IEEE 802.11 networks
Wireless Networks
A Survey of Distributed Relay Selection Schemes in Cooperative Wireless Ad hoc Networks
Wireless Personal Communications: An International Journal
Efficient path planning and data gathering protocols for the wireless sensor network
Computer Communications
Segment cooperation communication in multi-hop wireless networks
Wireless Networks
An energy-efficient opportunistic relay assignment in wireless cooperative networks
International Journal of Sensor Networks
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In this paper, we propose a novel and efficient relay selection protocol based on geographical information for cluster-based cooperative wireless sensor networks (WSNs). Multihop transmission is realized by concatenation of single cluster-to-cluster hops, where each cluster-to-cluster scheme forms the simplified cooperative network that consists of a single source-destination pair and a set of available relays. With the relay selection mechanism, the source in each cluster-to-cluster hop selects an optimum relay to execute the cooperative diversity transmission via the simple adaptive decode-and-forward (DF) strategy. The proposed relay selection protocol is designed for minimum symbol error probability (SEP) at the destination by utilizing only geographical information among nodes as selection criteria. In particular, such geographical information is often available during network initialization, and its state required to be maintained is minimum. Therefore, the proposed protocol can efficiently perform relay selection without complicated procedures that examine out the optimum relay by channel estimations, and hence it reduces significantly the computational complexity and is applicable to a fast-varying environment. Simulation results demonstrate the proposed relay selection protocol can efficiently improve the system performance and outperform the random relay selection protocol in terms of symbol error probability.