2002•Electronics LettersRequires access

Peak-to-average power ratio performance comparison of different spreading code allocation strategies for MC-CDMA and MC-DS-CDMA

N. Hathi, Izzat Darwazeh, John J. O'Reilly

Abstract

The variation of peak-to-average power ratio (PAPR) for different allocations of spreading code sequences in multi-carrier code division multiple access (MC-CDMA) and multi-carrier direct-sequence code division multiple access (MC-DS-CDMA) systems is investigated. The results show that for a small number of active users, the PAPR performance of an MC-CDMA system can be improved by careful allocation of the spreading code sequences to different users.

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Key concepts: Code division multiple access, Code (set theory), Computer science, Electronic engineering, Division (mathematics), Spread spectrum, Power (physics), Chip