IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Special Section on Satellite Communication Technologies in Conjunction with Main Topics of JC-SAT2008
Optimum and Suboptimum Code Allocation for Peak Power Reduction in Down-Link MC CDMA
Kwonhue CHOIJiyu JIN
Author information
JOURNAL RESTRICTED ACCESS

2009 Volume E92.B Issue 11 Pages 3389-3393

Details
Abstract

We develop an optimum code allocation scheme by investigating the peak to average power ratio (PAPR) characteristic of a down-link multi-carrier (MC)-CDMA system using Walsh-Hadamard code. It is shown that PAPR of a MC-CDMA system is highly dependent upon the selection of code combination. Based on this fact, we develop the allocation method which minimizes PAPR according to the number of active users. In addition, an efficient suboptimum code combination search scheme is also proposed for near minimum PAPR.

Content from these authors
© 2009 The Institute of Electronics, Information and Communication Engineers
Previous article Next article
feedback
Top