Spectral-Efficiency of TDD Multiuser Two-Hop MC-CDMA Systems Employing Egocentric-Altruistic Relay Optimization
Spectral-Efficiency of TDD Multiuser Two-Hop MC-CDMA Systems Employing Egocentric-Altruistic Relay Optimization
In this contribution we investigate the spectral-efficiency of a two-hop cooperative network using multicarrier code-division multiple-access (MC-CDMA) transmission scheme. The two-hop network constitutes K source users transmitting signals to K destinations with the aid of N relays. Our focus is on the relay optimization, when assuming that the N relays cooperate or do not cooperate with each other. Specifically, in this contribution the egocentric-altruistic (E-A) optimization is introduced, which constitutes an E-optimization motivating to suppress the multiuser interference (MUI) of the source-relay channels and an A-optimization aiming to pre-mitigate the potential MUI of the relay-destination channels. Both the minimum mean-square error (MMSE) and zero-forcing (ZF) optimization criteria are considered. Furthermore, the spectral-efficiency performance of the two-hop MC-CDMA systems using the proposed E-A relay optimization is investigated by simulations, when assuming communications over frequency-selective fading channels.
Liu, Tingting
88a2fd8d-bd0b-413f-9e71-8a706023ffa3
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Yang, Chenyang
b189df03-b59c-4d93-9729-54db02bc2b74
May 2010
Liu, Tingting
88a2fd8d-bd0b-413f-9e71-8a706023ffa3
Yang, Lie-Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Yang, Chenyang
b189df03-b59c-4d93-9729-54db02bc2b74
Liu, Tingting, Yang, Lie-Liang and Yang, Chenyang
(2010)
Spectral-Efficiency of TDD Multiuser Two-Hop MC-CDMA Systems Employing Egocentric-Altruistic Relay Optimization.
IEEE VTC2010 Spring, Taipei, Taiwan.
16 - 19 May 2010.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this contribution we investigate the spectral-efficiency of a two-hop cooperative network using multicarrier code-division multiple-access (MC-CDMA) transmission scheme. The two-hop network constitutes K source users transmitting signals to K destinations with the aid of N relays. Our focus is on the relay optimization, when assuming that the N relays cooperate or do not cooperate with each other. Specifically, in this contribution the egocentric-altruistic (E-A) optimization is introduced, which constitutes an E-optimization motivating to suppress the multiuser interference (MUI) of the source-relay channels and an A-optimization aiming to pre-mitigate the potential MUI of the relay-destination channels. Both the minimum mean-square error (MMSE) and zero-forcing (ZF) optimization criteria are considered. Furthermore, the spectral-efficiency performance of the two-hop MC-CDMA systems using the proposed E-A relay optimization is investigated by simulations, when assuming communications over frequency-selective fading channels.
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Published date: May 2010
Additional Information:
Event Dates: 16-19 May 2010
Venue - Dates:
IEEE VTC2010 Spring, Taipei, Taiwan, 2010-05-16 - 2010-05-19
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 272635
URI: http://eprints.soton.ac.uk/id/eprint/272635
PURE UUID: b4414f91-63f8-4e95-a7d5-31dc7b55fa93
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Date deposited: 05 Aug 2011 16:27
Last modified: 15 Mar 2024 02:59
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Contributors
Author:
Tingting Liu
Author:
Lie-Liang Yang
Author:
Chenyang Yang
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