Fractional-Delay-Resilient Receiver Design for Interference-Free MC-CDMA Communications Based on Complete Complementary Codes

Zilong Liu, Yong Liang Guan, Hsiao Hwa Chen

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

Complete complementary codes (CCC) refer to a set of two-dimensional matrices, which have zero non-trivial aperiodic auto- and cross- correlation sums. A modern application of CCC is in interference-free multicarrier code-division multiple-access (MC-CDMA) communications. In this paper, we first show that in asynchronous "fractional-delay" uplink channels, CCC-MC-CDMA systems suffer from orthogonality loss, which may lead to huge interference increase when a conventional correlator based receiver is deployed. Then, by exploiting the correlation properties of CCC, we present a fractional-delay-resilient receiver which is comprised of a chip-spaced correlating array. Analysis and simulations validate the interference-free achievability of the proposed CSCA receiver in strong interference scenarios.

Original languageEnglish
Article number6937211
Pages (from-to)1226-1236
Number of pages11
JournalIEEE Transactions on Wireless Communications
Volume14
Issue number3
DOIs
Publication statusPublished - 2015 Mar

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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