Journal of Applied Sciences ›› 2000, Vol. 18 ›› Issue (4): 298-302.

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Wideband CDMA Wireless Multimedia Multiple Access Techniques Research and Implementation

QIU Ling, ZHU Jin-kang   

  1. Department of Electronic Engineering & Information Science, University of Science and Technology of China, Hefei 230027, China
  • Received:1999-10-18 Revised:2000-01-29 Online:2000-12-31 Published:2000-12-31

Abstract: In this paper, we present the result of our researches on the wideband code division multiple access (W-CDMA) multimedia wireless access techniques. This includes to propose W-CDMA modulation scheme of variable transmission rate, partial-balance power control algorithm, and wireless access method of variable access rate. Based on the proposed W-CDMA multimedia wireless multiple access techniques, an experimental system which consists of a base station and multimedia terminals is also developed. The system realizes the wireless communication of voice with 8kbps transmission rate and data with 144kbps transmission rate.

Key words: W-CDMA, multiple access techniques, system implementation

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