Title :
A comparison of base station transmit diversity methods for third generation cellular standards
Author :
Rohani, Kamyar ; Harrison, Mark ; Kuchi, Kiran
Author_Institution :
Access Technol. Res., Motorola Labs., Fort Worth, TX, USA
Abstract :
Code division multiple access (CDMA) is a common access scheme among all major proposals for third generation cellular standards. The objective of this paper is to show the performance benefits of open loop (which do not adapt transmission based on the channel to the mobile) and closed loop (which do adapt based on the channel to the mobile) transmit diversity methods for CDMA. We examine orthogonal transmit diversity (OTD) (an open loop method), and transmit adaptive arrays (TXAA) (a closed loop method)
Keywords :
Rayleigh channels; adaptive antenna arrays; cellular radio; closed loop systems; code division multiple access; diversity reception; multiuser channels; telecommunication standards; transmitting antennas; 1-path Rayleigh fading channels; CDMA; base station transmit diversity methods; closed loop diversity methods; closed loop method; code division multiple access; open loop diversity methods; orthogonal transmit diversity; performance; third generation cellular standards; transmit adaptive arrays; Base stations; Code standards; Delay; Diversity methods; Fading; Interference; Multiaccess communication; Proposals; Quadrature phase shift keying; Receiving antennas;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.778075
