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Reduction of peak-to-average-power ratio in a telecommunications system
Reduction of peak-to-average-power ratio in a telecommunications system
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机译：降低电信系统中的峰均功率比
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摘要
A single-carrier signal is generated from a number, N, of symbols in a way that results in a low PAPR. This includes generating an initial set of N complex frequency components from the N symbols. Ns different sets of N complex frequency components are generated by, for each of Ns times, permuting the initial set of N complex frequency components by one of Ns possible permutations. Ns different sets of M complex frequency components are generated by mapping each of the Ns different sets of N complex frequency components onto a set of M carrier frequencies. After shaping, an IDFT generates a candidate set of N time-domain symbols from each of the Ns different sets of M complex frequency components. That one of the Ns different candidate sets of N time-domain symbols that is associated with the smallest PAPR is selected for further processing.
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机译：从N个符号中生成单载波信号，其方式会导致PAPR较低。这包括从N个符号生成N个复数频率分量的初始集合。通过为N s 次中的每个时间生成N s 个N个复数频率分量的不同集合，将N个复数频率分量的初始集合置换N 个中的一个s 可能的排列。通过将N个复数频率分量的N s 个不同集合中的每一个映射到一组M个载波频率上，可以生成N个 s 个不同的M个复杂频率分量集。整形后，IDFT从M个复数频率分量的N s 个不同集合的每一个中生成N个时域符号的候选集合。选择与最小PAPR相关联的N个时域符号的N s 个不同候选集之一，以进行进一步处理。
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