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 Multiple antenna relay-assisted schemes for the uplink OFDM based systems
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5382

title: Multiple antenna relay-assisted schemes for the uplink OFDM based systems
authors: Moço, A.
Lima, H.
Silva, A.
Gameiro, A.
keywords: Cooperative schemes and uplink
Multiple antennas
OFDM
Relay
Cooperative schemes
Decode-and-forward
Half-duplex relay
Mobile terminal
Multiple antenna
Multiple-antenna relay
Non-cooperative
Numerical results
OFDM based system
Realistic scenario
Single antenna
Antenna arrays
Cellular telephone systems
Communication systems
Global system for mobile communications
Local area networks
Mobile computing
Orthogonal frequency division multiplexing
Receiving antennas
Wimax
Wireless networks
Mobile antennas
issue date: 2009
publisher: IEEE
abstract: The aim of this paper is to propose and assess the performance of multiple antenna half-duplex relay-assisted cooperative schemes designed for the uplink OFDM based systems. We consider the use of an antenna array at the relay and base station and a single antenna at the mobile terminals. Two types of relay protocols are considered: equalize-and-forward and decode-and-forward. The performance of the proposed multiple antenna relay-assisted schemes is evaluated under realistic scenarios, considering typical pedestrian scenarios based on WiMAX specifications. The proposed schemes are also compared against the OFDM based non-cooperative systems. The goal is to identify the scenarios in which cooperating may be beneficial. Numerical results show that multiple antenna relay-assisted schemes outperform the non-cooperative ones in most of the studied scenarios.
URI: http://hdl.handle.net/10773/5382
ISBN: 9781424435845
source: ISWCS'09: 6th International Symposium on Wireless Communication Systems, Wireless Communication Systems
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