Design and Performance of Cyclic Delay Diversity in UWB-OFDM Systems

This paper addresses cyclic delay diversity (CDD) in an ultra-wideband communication system based on orthogonal frequency division multiplexing (OFDM) technique. Symbol error rate and outage probability have been derived. It is shown that with only two transmit antennas, CDD effectively improves SER...

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Bibliographic Details
Published in:EURASIP journal on wireless communications and networking 2008-01, Vol.2008 (1), p.541478, Article 541478
Main Authors: TARASAK, Poramate, PNG, Khiam-Boon, XIAOMING PENG, CHIN, Francois
Format: Article
Language:English
Subjects:
Antennas
Applied sciences
Codes
Communication
Exact sciences and technology
Information, signal and communications theory
Multiplexing
Radiocommunications
Signal and communications theory
Studies
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Transmitters
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Summary:This paper addresses cyclic delay diversity (CDD) in an ultra-wideband communication system based on orthogonal frequency division multiplexing (OFDM) technique. Symbol error rate and outage probability have been derived. It is shown that with only two transmit antennas, CDD effectively improves SER performance and reduces outage probability significantly especially when the channel delay spread is short. Both simulation and analytical results agree well in all considered cases. The selection of delay times for CDD is also addressed for some special cases.
ISSN:1687-1472
1687-1499
1687-1499
DOI:10.1155/2008/541478