块编码16 QAM-TDMA蜂窝无线电系统使用周期性慢跳频

[1992 Proceedings] Vehicular Technology Society 42nd VTS Conference - Frontiers of Technology Pub Date : 1992-05-10 DOI:10.1109/VETEC.1992.245366

H. Sasaoka

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引用次数: 14

摘要

提出了一种采用周期性慢跳频和块编码正交调幅(QAM)的时分多址(TDMA)蜂窝系统。QAM方案减少了语音信道所需的带宽。跳频和编码的结合提供了抗多径衰落和干扰的能力。扇区和语音活动被用来减少共信道干扰。这些技术增加了频率重用因子。该系统可以实现比模拟系统大13倍的容量增长。

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Block coded 16 QAM-TDMA cellular radio system using cyclical slow frequency hopping

A TDMA cellular system using cyclical slow frequency hopping and a block-coded quadrature amplitude modulation (QAM) is presented. The QAM scheme reduces the required bandwidth for voice channels. The combination of frequency hopping and coding offers immunity against multipath fading and interference. The sectorization and voice activity are used to reduce cochannel interference. These techniques increase the frequency reuse factor. The proposed system can achieve a capacity increase 13 times greater than that of analog systems.<>

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来源期刊

[1992 Proceedings] Vehicular Technology Society 42nd VTS Conference - Frontiers of Technology

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