基于Golay互补序列的OFDM高效传输编码和调制方案评价

VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151) Pub Date : 1998-05-18 DOI:10.1109/VETEC.1998.686566

T. Hunziker, U. Bernhard

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引用次数: 4

摘要

提出了一种基于Golay互补序列的分组码，用于正交频分复用(OFDM)传输，以获得平坦包络的信号。这些编码以较低的码率为代价，将多载波信号的峰值-平均功率比限制在3db的有利值。此外，编码采用分集，在频率选择性衰落信道中提高了性能。本文讨论了使用这种编码的OFDM传输技术的能力和限制。对不同的编码和调制方案进行了比较，并为选择合适的传输方案提供了指导。利用魔棒(无线ATM网络演示器)系统设置，讨论了一个实际系统的需求。

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Evaluation of coding and modulation schemes based on Golay complementary sequences for efficient OFDM transmission

Block codes based on Golay complementary sequences have been proposed for orthogonal frequency division multiplexing (OFDM) transmission to obtain signals with flat envelopes. These codes confine the peak-to-average power ratio of multicarrier signals to a favorable value of 3 dB at the cost of a lower code rate. Additionally, the coding employs diversity which renders a performance improvement in frequency-selective fading channels. This paper contains a discussion on the capabilities and the limits of OFDM transmission techniques using such codes. Different coding and modulation schemes are compared and guidelines are provided for the choice of the appropriate transmission scheme. The Magic WAND (wireless ATM network demonstrator) system set-up is used to discuss the requirements of a practical system.

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VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151)

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