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Title: | Performance evaluation of virtual MIMO schemes for the UL OFDMA based systems |
Author: | Moço, Andreia Teodoro, Sara Silva, Adão Gameiro, Atílio |
Keywords: | Cooperative schemes OFDMA Relay Uplink Virtual MIMO Antenna accessories Antenna arrays Antennas Bit error rate Error analysis Frequency division multiple access MIM devices Mobile telecommunication systems Multiplexing Photoelectric relays Receiving antennas Amplify-and-forward Base stations Broad band wireless systems Cooperative schemes Decode-and-Forward International conferences MIMO channels MIMO schemes Mobile communications Mobile terminal OFDMA Performance evaluation Receive antennas Relay SIMO systems Single antenna System-capacity Two types Uplink Virtual MIMO Mobile antennas |
Issue Date: | 2008 |
Publisher: | IEEE |
Abstract: | In this paper we propose and assess the performance of virtual MIMO or relay-assisted cooperative schemes designed for the UL OFDMA based systems. We consider the use of an antenna array at the base station and a single antenna at both the mobile terminal and relay. The proposed cooperative schemes emulate a MIMO channel with 2 transmit and M receive antennas. Two types of relays are considered: amplify-and-forward and selective decode-and-forward. We derive the instantaneous normalized capacities and both the outage capacities and bit error rate are compared against the noncooperative SISO and SIMO systems, considering different scenarios. The proposed relay-assisted schemes are suited for existing and for the future broadband wireless systems to increase the system capacity and coverage. © 2008 IEEE. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/5400 |
DOI: | 10.1109/ICWMC.2008.61 |
ISBN: | 978-0-7695-3274-5 |
Appears in Collections: | DETI - Comunicações |
Files in This Item:
File | Description | Size | Format | |
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Andreia_ICWMC_2008.pdf | 410.24 kB | Adobe PDF |
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