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First-hop-quality-aware dynamic resource allocation for amplify-and-forward opportunistic relaying assisted SC-FDMA

Record type: Conference or Workshop Item (Paper)

In this paper we exploit the benefits of the diversity gains arising from a cluster of opportunistic relays (OR) and from the independently fading subcarriers of multiple users. Our goal is to improve the energy-efficiency of the OR assisted single-carrier frequency-division multiple-access (SC-FDMA) uplink using amplify-and-forward (AF), where the direct transmission (DT) link is unavailable. By assuming that the pilot aided channel quality information (CQI) of all the users may be exchanged amongst the cooperating relays, we propose two joint dynamic resource allocation (DRA) schemes based on the so-called ’first-hop quality awareness’. Our results demonstrate that compared to the DT benchmark, the proposed joint DRA schemes are capable of achieving a power reduction of 10dB for a single-antenna base station (BS) receiver, albeit for a multi-antenna BS the power-reduction remains more modest.

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Citation

Zhang, Jiayi, Yang, Lie-Liang and Hanzo, Lajos (2012) First-hop-quality-aware dynamic resource allocation for amplify-and-forward opportunistic relaying assisted SC-FDMA At IEEE International Conference on Communications (ICC 2012), Canada. 10 - 15 Jun 2012. 6 pp. (doi:10.1109/ICC.2012.6364352).

More information

Published date: 10 June 2012
Venue - Dates: IEEE International Conference on Communications (ICC 2012), Canada, 2012-06-10 - 2012-06-15
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 340493
URI: http://eprints.soton.ac.uk/id/eprint/340493
PURE UUID: 115fbdff-1e8f-42aa-8dba-75aa0b34ea03
ORCID for Lie-Liang Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 22 Jun 2012 14:02
Last modified: 18 Jul 2017 05:43

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Contributors

Author: Jiayi Zhang
Author: Lie-Liang Yang ORCID iD
Author: Lajos Hanzo

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