DocumentCode :
3436018
Title :
Distributed Transmit Diversity in Relay Networks
Author :
Akçaba, Cemal ; Kuppinger, Patrick ; Bölcskei, Helmut
Author_Institution :
ETH Zurich, Zurich
fYear :
2007
fDate :
1-6 July 2007
Firstpage :
1
Lastpage :
5
Abstract :
We analyze fading relay networks, where a single-antenna source-destination terminal pair communicates through a set of half-duplex single-antenna relays using a two-hop protocol with linear processing at the relay level. A family of relaying schemes is presented which achieves the entire optimal diversity-multiplexing (DM) tradeoff curve. As a byproduct of our analysis, it follows that delay diversity and phase-rolling at the relay level are optimal with respect to the entire DM-tradeoff curve, provided the delays and the modulation frequencies, respectively, are chosen appropriately.
Keywords :
diversity reception; multiplexing; radio networks; transmitting antennas; delay diversity; distributed transmit diversity; fading relay networks; half-duplex single-antenna relays; linear relay processing schemes; modulation frequency; optimal diversity-multiplexing tradeoff curve; phase-rolling; single-antenna source-destination terminal pair; two-hop protocol; Communications technology; Delay; Delta modulation; Discrete Fourier transforms; Diversity methods; Fading; Frame relay; Laboratories; Protocols; Wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Theory for Wireless Networks, 2007 IEEE Information Theory Workshop on
Conference_Location :
Solstrand
Print_ISBN :
978-1-4244-1200-6
Electronic_ISBN :
978-1-4244-1200-6
Type :
conf
DOI :
10.1109/ITWITWN.2007.4318070
Filename :
4318070
Link To Document :
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