2011•IEEE Transactions on Wireless CommunicationsRequires access

Spectral Sidelobe Decaying Property of Walsh-Hadamard Code in MC-CDMA Systems

Chia-Ching Lin, Wei-Chang Chen, Char‐Dir Chung

Abstract

In this letter, a spectral sidelobe-decaying property of the Walsh-Hadamard code employed in multicarrier code-division multiple access (MC-CDMA) systems is exploited. It is shown that the sidelobe-decaying characteristic of the MC-CDMA signal can be properly described by the code index of the underlined Walsh-Hadamard codeword.

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Key concepts: Hadamard code, Hadamard transform, Code division multiple access, Code word, Walsh function, Code (set theory), Interference (communication), Computer science