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Bayesian methods for erasure insertion in frequency-hop communication systems with partial-band interference

机译:带有部分频带干扰的跳频通信系统中擦除插入的贝叶斯方法

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摘要

The erasure of unreliable symbols improves the performance of most types of error-control coding if a good method is used to decide which symbols should be erased. Bayesian decision theory is employed to obtain such a method for use in frequency-hop communications with Reed-Solomon coding and errors-and-erasures decoding. The performance of frequency-hop communications with Bayesian erasure insertion is analyzed for channels with both partial-band and wideband Gaussian noise. The Bayesian technique is compared with Viterbi's ratio-threshold test, and these are compared to receivers that do not erase and use errors-only decoding. Comparisons are also made with receivers that erase all the symbols that are affected by the partial-band interference. When interference is strong, large coding gains result from the Bayesian method, and error probabilities are reduced by several orders of magnitude.
机译:如果使用一种好的方法来确定应删除哪些符号,则擦除不可靠的符号将提高大多数类型的错误控制编码的性能。使用贝叶斯决策理论来获得这种方法,该方法可用于带有Reed-Solomon编码和误码消除解码的跳频通信。针对具有部分频带和宽带高斯噪声的信道,分析了具有贝叶斯擦除插入的跳频通信的性能。将贝叶斯技术与维特比比率阈值测试进行比较,然后将这些贝叶斯技术与不擦除并且仅使用错误解码的接收器进行比较。还与删除所有受部分频带干扰影响的符号的接收机进行了比较。当干扰很强时,贝叶斯方法会产生较大的编码增益,并且错误概率会降低几个数量级。

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