Iterative detection and phase recovery for downlink DS and MC-CDMAFlat rayleigh fading channels

R. Fa, B. S. Sharif, C. C. Tsimenidis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, iterative detection is applied in the receiver for downlink of both Direct Sequence (DS) and Multicarrier (MC) code division multiple access (CDMA) systems in the flat Rayleigh fading channels. A joint iterative detection and phase recovery scheme is proposed. Unlike the conventional Bitinterleaved coded modulation with iterative decoding (BICM-ID) structure, the proposed receiver feeds the extrinsic information from soft-input soft-output (SISO) decoder back to update both the adaptive minimum mean squared error (MMSE) correlator and phase locked-loop (PLL) instead of de-mapper. We also investigate how the second-order PLL benefits from the iterative process over the time-varying flat Rayleigh fading channel. Simulation results illustrate that the iterative process significantly improves the performance of the adaptive detector by suppressing multiple access interference (MAI). Additionally, the tracking capability of PLL is enhanced by reducing the equivalent noise power.

Original languageBritish English
Title of host publication2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
Pages2315-2319
Number of pages5
DOIs
StatePublished - 2007
Event2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring - Dublin, Ireland
Duration: 22 Apr 200725 Apr 2007

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

Conference2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
Country/TerritoryIreland
CityDublin
Period22/04/0725/04/07

Fingerprint

Dive into the research topics of 'Iterative detection and phase recovery for downlink DS and MC-CDMAFlat rayleigh fading channels'. Together they form a unique fingerprint.

Cite this