基于MSE-OFDM的协同通信载波频偏缓解

Sung-Ju Lee, Jae-Seon Yoon, Hyoung-Kyu Song
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引用次数: 3

摘要

本文提出了一种多符号封装正交频分复用(MSE-OFDM)的协作通信方案,其中多个OFDM符号使用一个循环前缀(CP)。我们使用减小FFT尺寸的MSE-OFDM系统,该系统可用于降低峰均功率比(PAPR)并提高对载波频偏的鲁棒性。协作通信不仅采用从源到目的的直接路径,而且还采用通过中继站的间接路径。为了提高系统的性能,我们采用了MSE-OFDM技术。对多径衰落信道下的协同MSE-OFDM进行了性能分析,研究了载波频偏和PAPR对其性能的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Carrier Frequency Offset Mitigation Using MSE-OFDM in Cooperative Communications
In this paper, we propose a cooperative communation scheme using multi-symbol encapsulated orthogonal frequency division multiplexing (MSE-OFDM), in which one cyclic prefix (CP) is used for multiple OFDM symbols. We use the FFT size-reduced MSE-OFDM system which can be used to reduce the peak-to-average power ratio (PAPR) and improve the robustness to carrier frequency offset. The cooperative communication uses not only direct path from source to destination but also indirect path via relay station. Each different relays require more precise frequency synchronization and lower PAPR, so we adopt the MSE-OFDM to increase the system performance. The performance analysis of cooperative MSE-OFDM in multipath fading channels has been done and the effect of carrier frequency offset and PAPR have been studied.
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