Energy balancing cooperative diversity for wireless sensor networks
International Journal of Communication Networks and Distributed Systems
EURASIP Journal on Advances in Signal Processing - Special issue on game theory in signal processing and communications
Optimal energy-efficient pair-wise cooperative transmission scheme for WiMax mesh networks
IEEE Journal on Selected Areas in Communications - Special issue on broadband access networks: Architectures and protocols
Routing strategies in multihop cooperative networks
IEEE Transactions on Wireless Communications
Distributed power allocation schemes for amplify-and-forward networks
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Is network coding always good for cooperative communications?
INFOCOM'10 Proceedings of the 29th conference on Information communications
INFOCOM'10 Proceedings of the 29th conference on Information communications
OLA with transmission threshold for strip networks
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Analysis of a simple recruiting method for cooperative routes and strip networks
IEEE Transactions on Wireless Communications
Adaptive resource allocation in multiuser cooperative networks with proportional rate constraints
International Journal of Sensor Networks
An optimal algorithm for relay node assignment in cooperative ad hoc networks
IEEE/ACM Transactions on Networking (TON)
Segment cooperation communication in multi-hop wireless networks
Wireless Networks
Hi-index | 0.07 |
This paper is focused on the optimization of transmitted power in a cooperative decoded relaying scheme for nodes belonging to the single primary route towards. a destination. The proposed transmission protocol, referred to as Multihop Cooperative Transmission Chain (MCTC), is based on the linear combination of copies of the same message by multiple previous terminals along the route in order to maximize the multihop diversity. Power allocations among transmitting nodes in the route can be obtained according to the average (not instantaneous) node-to-node path attenuation using a recursive power assignment. The latter can be employed locally on each node with limited signalling exchange (for fixed or nomadic terminals) among nodes. In this paper the power assignments for the MCTC strategy employing conventional linear combining schemes at receivers (i.e., selection combining, maximal ratio combining and equal gain combining) have been derived analytically when the power optimization is constrained to guarantee the end-to-end outage probability. In particular, we show that the power assignment that minimize the maximum spread of received power (min-max strategy) can efficiently exploit the multihop diversity. In addition, for ad hoc networks where the energy of each node is an issue, the MCTC protocol with the min-max power assignment increases considerably the network lifetime when compared to non-cooperative multihop schemes