SPC12-5: Relay Selection in Multi-Node Cooperative Communications: When to Cooperate and Whom to Cooperate with?
- 1 November 2006
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 1930529X,p. 1-5
- https://doi.org/10.1109/glocom.2006.601
Abstract
In this paper, we propose a new cooperative communication protocol, which achieves high bandwidth efficiency while guaranteeing full diversity order. The proposed scheme considers relay selection via the available partial channel state information (CSI) at the source and the relays. More precisely, the source determines when it needs to cooperate with one relay only among arbitrary N relays and which relay to cooperate with in case of cooperation, i.e., "When to cooperate?" and "Whom to cooperate with?". In case of cooperation, the source employs the optimal relay, which has the maximum instantaneous scaled harmonic mean function of its source-relay and relay-destination channels' gains. For the symmetric scenario, we prove that full diversity is guaranteed and that a significant increase of the bandwidth efficiency is achieved. Furthermore, we show the tradeoff between the achievable bandwidth efficiency and the corresponding error rate. Finally, the obtained analytical results are verified through computer simulations.Keywords
This publication has 9 references indexed in Scilit:
- A class of cooperative communication protocols for multi-node wireless networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- SER performance analysis and optimum power allocation for decode-and-forward cooperation protocol in wireless networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Cooperative communications with partial channel state information: When to cooperate?Published by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Cooperative Diversity in Wireless Networks: Efficient Protocols and Outage BehaviorIEEE Transactions on Information Theory, 2004
- User cooperation diversity-part I: system descriptionIEEE Transactions on Communications, 2003
- Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networksIEEE Transactions on Information Theory, 2003
- Performance analysis of two-hop relayed transmissions over Rayleigh fading channelsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Linear diversity combining techniquesProceedings of the IEEE, 2003
- A unified approach to the performance analysis of digital communication over generalized fading channelsProceedings of the IEEE, 1998