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On the impact of relay-side channel state information on opportunistic relaying

Lookup NU author(s): Dr Anvar Tukmanov, Professor Said Boussakta, Dr Zhiguo Ding, Professor Abbas Jamalipour


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Outage performance of network topology-aware opportunistic relay selection is studied using stochastic geometry techniques with the focus on the impact of different levels of channel state information (CSI) available at relays. Specifically, two scenarios with either (a) exact instantaneous or (b) only statistical CSI are compared with an explicit account for both small-scale Rayleigh fading and path loss due to random node locations. Analytical and simulation results suggest that although similar diversity order can be achieved in both cases, the lack of precise CSI to support relay selection translates into significant increase in the power required to achieve the same level of QoS. In addition, when only statistical CSI is available, achieving high diversity order is possible by employing multiple relays at the cost of performance degradation at low SNR due to splitting of system resources. © 2013 IEEE.

Publication metadata

Author(s): Tukmanov A, Boussakta S, Ding Z, Jamalipour A

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: IEEE International Conference on Communications

Year of Conference: 2013

Pages: 5478-5482

Online publication date: 07/11/2013

Publisher: Institute of Electrical and Electronics Engineers Inc.


DOI: 10.1109/ICC.2013.6655462

Library holdings: Search Newcastle University Library for this item

ISBN: 9781467331227