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适用于下一代移动通信系统的多载波CDMA

The MC-CDM A System Applicable to the Next Generation Mobile Communication
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摘要 峰均功率比过高一直是影响MC-CD- MA应用的一个重要因素,这已成为MC- CDMA技术实用化的最大障碍。从选择扩频码和选择映射两个不同的角度时降低峰均功率比进行研究,一方面,利用Zadoff-Chu 序列作为MC-CDMA信号的扩频码,有效降低其峰均功率比;另一方面,在基本选择映射算法的基础上,提出了改进的选择映射算法,具有较好的实用价值。 The high Peak to Average Power Ratio (PAPR) is the main drawback of MC-CDMA. In this paper, a method has been proposed to reduce PAPR in MC-CDMA system from the angle of selected spreading frequency code and selected mapping, We use Zadoff-Chu sequences as spreading codes for MC-CDMA system, and propose the improved selected mapping algorithm on the basis of hasic selected mapping algorithm. which can effectively reduce the PAPR of MC-CDMA system.
出处 《现代电信科技》 2006年第3期46-50,共5页 Modern Science & Technology of Telecommunications
基金 国家自然科学基金(60372014)东南大学移动通信国家重点实验室开放基金
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参考文献5

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