空间路径分集和更高字母长度CDMA性能评价

Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136) Pub Date : 1997-11-02 DOI:10.1109/ACSSC.1997.680055

J. Perrin, S. Buljore, J. Zeidler, L. Milstein

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引用次数: 5

摘要

对于下一代移动通信系统，支持数据、图像和语音传输的高速、可靠的无线通信设计是一个重要的问题。目前的蜂窝DS-CDMA系统被设计为以9.6或14.4千比特/秒的低比特率或中比特率传输，但将这一数据速率提高到64千比特/秒、384千比特/秒和2千比特/秒的建议目前正在由通用移动通信服务(UMTS或IMT-2000)等标准委员会进行评估。我们研究了异步DS-CDMA系统在频率选择信道中与QPSK或16-QAM调制和空间路径分集技术一起以高达8 mbit /s的数据速率工作所能实现的性能。

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Performance evaluation of space-path diversity and higher alphabet size for CDMA

For the next generation mobile systems, the design of high speed reliable wireless communications supporting data, image and voice transmission is of primary interest. Current cellular DS-CDMA systems have been designed to operate at low- or medium-bit rate transmission, of 9.6 or 14.4 kbits/s, but proposals to increase this data rate to 64 kbits/s, 384 kbits/s and 2 Mbits/s are currently being evaluated by the standard committees such as the Universal Mobile Telecommunications Service (UMTS or IMT-2000). We investigate the performance achievable by an asynchronous DS-CDMA system operating at data rates of up to 8 Mbits/s in conjunction with either QPSK or 16-QAM modulation and space-path diversity techniques in a frequency selective channel.

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Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136)

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