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

Download

[img] PDF ICC2012_Jiayi_eprints.pdf - Other
Download (132kB)

Description/Abstract

In this paper we exploit the bene?ts 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-ef?ciency 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 ’?rst-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)
Digital Object Identifier (DOI): doi:10.1109/ICC.2012.6364352
Venue - Dates: IEEE International Conference on Communications (ICC 2012), Canada, 2012-06-10 - 2012-06-15
Related URLs:
Subjects:
Organisations: Southampton Wireless Group
ePrint ID: 340493
Date :
Date Event
10 June 2012Published
Date Deposited: 22 Jun 2012 14:02
Last Modified: 17 Apr 2017 16:54
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/340493

Actions (login required)

View Item View Item