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


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. In, IEEE International Conference on Communications (ICC 2012), Ottawa, CA, 10 - 15 Jun 2012. 6pp. (doi:10.1109/ICC.2012.6364352).

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Description/Abstract

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.

Item Type: Conference or Workshop Item (Paper)
Related URLs:
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 340493
Date Deposited: 22 Jun 2012 14:02
Last Modified: 14 Apr 2014 11:43
Research Funder: EPSRC
Projects:
India-UK Advanced Technology Centre (IU-ATC) in Next Generation Networks Systems and Services (Phase Two Follow-on)
Funded by: EPSRC (EP/J016748/1)
Led by: Gerard Parr
1 January 2012 to 30 June 2014
Further Information:Google Scholar
ISI Citation Count:0
URI: http://eprints.soton.ac.uk/id/eprint/340493

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