同步MC-CDMA系统中扩展序列的性能比较

2005 5th International Conference on Information Communications & Signal Processing Pub Date : 2005-12-06 DOI:10.1109/ICICS.2005.1689124

Z. Gu, S. Xie, S. Rahardja, E. T. Sze, Y. Xin

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引用次数: 3

摘要

通过数值仿真，比较了同步多载波码分多址(MC-CDMA)系统中不同扩展序列的误码率性能。底层子载波是相关的。研究了Gold、正交Gold、4相族A、Walsh-Hadamard (WH)和新型正交统一复Hadamard变换(UCHT)序列。仿真结果表明，在各种扩频序列中，正交WH序列和UCHT序列都具有最佳的误码率性能。不同扩频序列之间的性能差异可以用频域零延迟互相关特性来解释

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Performance Comparison of Spreading Sequences in Synchronous MC-CDMA Systems

The bit error rate (BER) performance of various spreading sequences in a synchronous multicarrier code-division multiple access (MC-CDMA) system is compared by numerical simulations in this paper. The underlying subcarriers are correlated. Gold, orthogonal Gold, 4-phase family A, Walsh-Hadamard (WH) and new orthogonal unified complex Hadamard transform (UCHT) sequences are investigated here. Simulation results show that both orthogonal WH and UCHT sequences give the best BER performance among various spreading sequences. The disparity in performance between the various spreading sequences can be explained by the property of the zero-delay cross-correlation in frequency domain

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2005 5th International Conference on Information Communications & Signal Processing

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