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首页> 外文期刊>IEEE Transactions on Vehicular Technology >The error performance of CD900-like cellular mobile radio systems
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The error performance of CD900-like cellular mobile radio systems

机译：类似于CD900的蜂窝移动无线电系统的错误性能

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摘要

The symbol error performance of CD900-like digital cellular mobile radio systems over narrowband and urban wideband transmission channels was investigated. The basic performance is presented for Gaussian, flat-fading Rayleigh, and log-normal channels in the presence of selection and ratio combining space diversity schemes. For wideband channels having more than one resolvable fading path, a CD900-like system without diversity reception suffers from large residual symbol error probabilities P/sub R/( approximately=10/sup -1/). The introduction of adaptive correlation diversity (ACD) mitigates the effects of multipath, yielding a P/sub R/ of 6*10/sup -5/. Although this P/sub R/ value is relatively low, the probability of symbol error (P/sub e/) versus signal-to-noise ratio (SNR) is significantly poorer than for the Gaussian channel. By combining the ACD scheme with space diversity, the P/sub R/ is eliminated by P/sub e/<10/sup -5/, and the channel SNR is within 5 dB of the Gaussian channel performance when P/sub e/ is 10/sup -10/.
机译：研究了类似CD900的数字蜂窝移动无线电系统在窄带和城市宽带传输信道上的符号错误性能。在存在选择和比率组合空间分集方案的情况下，给出了高斯，衰落瑞利和对数正态信道的基本性能。对于具有多条可分辨衰落路径的宽带信道，没有分集接收的类CD900系统遭受较大的残留符号错误概率P / sub R /（大约= 10 / sup -1 /）。自适应相关分集（ACD）的引入减轻了多径的影响，产生的P / sub R /为6 * 10 / sup -5 /。尽管此P / sub R /值相对较低，但符号错误（P / sub e /）与信噪比（SNR）的概率明显比高斯信道差。通过将ACD方案与空间分集相结合，P / sub e / <10 / sup -5 /消除了P / sub R /，当P / sub e /时，信道SNR在高斯信道性能的5 dB之内是10 / sup -10 /。

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