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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
IEICE TRANSACTIONS on Communications
Publication Date: 2005/06/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
PAPR, multicode CDMA, VPG-CDMA, code selective allocation, level clipping,
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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.