NDLI: Multi-Antenna Relay Nodes in OFDM Systems

Content Provider	IEEE Xplore Digital Library
Author	Doppler, K. Ari Hottinen
Copyright Year	2006
Description	Author affiliation: Radio Technol. Lab. (Doppler, K.; Ari Hottinen)
Abstract	In this paper we study different ways of embedding multi-antenna relay nodes to OFDM systems. We compare the performance of half-duplex amplify and forward, amplify and forward within the cyclic prefix and decode and forward relays in combination with multi-stream MIMO communication. We show that the eigenvalue spread of the effective channel matrix is much higher for the amplify and forward relaying protocols compared to the decode and forward protocols. Thus, decode and forward relays offer better spatial multiplexing possibilities. In particular we test the performance of the different relaying protocols for a 4times4times4 relay network in the downlink of a metropolitan area network. We show that amplify and forward within the cyclic prefix outperforms half-duplex amplify and forward and decode and forward relaying for a SNR up to 20 dB. Only at higher SNR decode and forward performs better due to its higher spatial multiplexing possibilities.
Starting Page	258
Ending Page	261
File Size	1818775
Page Count	4
File Format	PDF
ISBN	9781424403974
DOI	10.1109/ISWCS.2006.4362299
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-06
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Base stations Protocols Metropolitan area networks MIMO Relay networks OFDM Amplify and Forward within the Cyclic Prefix Downlink MIMO Decoding Relays Testing
Content Type	Text
Resource Type	Article

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Multiplexing gain of amplify-forward relaying in wireless multi-antenna relay networks

Coordinated precoding for downlink multi-user MIMO relay network

Distributed space-frequency block coding for a 2-antenna relay in downlink OFDM systems

Effect of fading correlation on the performance of cooperative systems with multi relay nodes

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Multi-Antenna Relay Nodes in OFDM Systems

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