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Transmit diversity schemes for CDMA-2000

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2 Author(s)
Rajan, D. ; Rice Univ., Houston, TX, USA ; Gray, S.D.

Transmit diversity offers an advantage in the forward link of the cdma2000 system by balancing the spectrum efficiency in the uplink and downlink. Three schemes for performing transmit diversity are examined in this paper-orthogonal transmit diversity, time switched transmit diversity, and selection transmit diversity for vehicular, indoor-outdoor pedestrian and indoor office environments. Also considered are some issues related to implementation complexity in the mobile handset. Under certain channel conditions, we show that low rate feedback of antenna selection and no forward link power control offers performance advantages over transmit diversity schemes with forward link power control and no antenna selection

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Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

Date of Conference: