PAPR Reduction in Multicode VPG-CDMA Systems Using Code Selective Allocation

Young-Hwan YOU  Sung-Jin KANG  Dae-Ki HONG  Jang-Yeon LEE  Min-Chul JU  Jin-Woong CHO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E88-B   No.6   pp.2668-2671
Publication Date: 2005/06/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.6.2668
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
PAPR,  multicode CDMA,  VPG-CDMA,  code selective allocation,  level clipping,  

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Summary: 
Multicode code-division multiple access (MC-CDMA) and variable processing gain CDMA (VPG-CDMA) are very appealing techniques for achieving high bit-rate data transmission and providing significant capacity gain in wireless channels. This letter provides the peak-to-average power ratio (PAPR) reduction scheme by using a code selective allocation (CSA) in a MC VPG-CDMA system. From simulation results, the MC VPG-CDMA system experiences a reduced PAPR thanks to the CSA algorithm and maintains an acceptable performance degradation even if encountered with nonlinear distortions introduced by a level clipper.