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| ANALYSIS AND OPTIMIZATION OF PILOT-CHANNEL-ASSISTED QPSK FOR DS-CDMA SYSTEMS |
| Zheng Kan; Wang Wenbo; Yang Dacheng |
| Dept. of Electron Eng.,Beijing University of Posts and Telecomm., Beijing 100876 China |
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Abstract In this paper, the pilot-channel-assisted QPSK in direct-sequence code-division multiple-access (DS-CDMA) system is investigated. The performance loss due to imperfect channel estimation is calculated. Then the data-to-pilot channel power ratio is optimized analytically and the probability is presented. Finally, simulation results are given.
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Received: 01 November 1999
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2001, Vol. 23 
