室内无线通信快速跳频扩频多址性能研究

IEEE International Conference on Communications, Including Supercomm Technical Sessions Pub Date : 1990-04-16 DOI:10.1109/ICC.1990.117290

J. Wang, M. Moeneclaey

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引用次数: 0

摘要

从理论上研究了采用天线分集和非相干二进制移频键控调制的数字系统在室内无线电多径瑞利衰落信道中的工作。研究了等增益组合的分集技术。跳频速率假定等于比特率。结果表明，与直接序列系统相比，FFH系统能够更好地抵消多径衰落，但是，如果使用分集，直接序列系统在存在多址干扰的情况下表现更好

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Performance of fast-frequency-hopping spread-spectrum multiple-access for indoor wireless communications

Digital systems employing antenna diversity and noncoherent binary frequency-shift-keying modulation operating through an indoor radio multipath Rayleigh fading channel are investigated theoretically. The diversity technique of equal gain combining is considered. The frequency-hopping rate is assumed to be equal to the bit rate. Results show that the FFH systems are better able to counteract multipath fading than direct sequence systems, which, however, perform better in the presence of multiaccess interference, provided that diversity is used.<>

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IEEE International Conference on Communications, Including Supercomm Technical Sessions

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