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Indexed by:期刊论文

Date of Publication:2015-04-01

Journal:ETRI JOURNAL

Included Journals:SCIE、EI、Scopus

Volume:37

Issue:2,SI

Page Number:338-347

ISSN No.:1225-6463

Key Words:MC-CDMA; peak-to-average power ratio; PAPR; high power amplifier; HPA; selective mapping; SLM

Abstract:The multi-carrier transmission signal in Multi-Carrier Code Division Multiple Access (MC-CDMA) has a high peak-to-average power ratio (PAPR), which results in nonlinear distortion and deteriorative system performance. An n-tuple selective mapping method is proposed to reduce the PAPR, in this paper. This method generates 2(n) sequences of an original data sequence by adding n-tuple of n PAPR control bits to it followed by an interleaver and error-control code (ECC) to reduce its PAPR. The convolutional, Go lay, and Hamming codes are used as ECCs in the proposed scheme. The proposed method uses different numbers of the n PAPR control bits to accomplish a noteworthy PAPR reduction and also avoids the need for a side-information transmission. The simulation results authenticate the effectiveness of the proposed method.