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2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications Analysis of Carrier Frequency Offset in Alamouti
 

Summary: 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications
Analysis of Carrier Frequency Offset in Alamouti
Space-Time-Frequency Coded OFDM Systems
Himal A. Suraweera and Jean Armstrong
Department of Electrical and Computer Systems Engineering
Monash University
Melboume Victoria 3800, Australia
E-mail: {himal.suraweera, jean.armstrong} @ eng.monash.edu.au
Abstract- It is well known that orthogonal frequency division
multiplexing (OFDM) systems are sensitive to carrier frequency
offset (CFO). In this paper we present the effects of CFO for
OFDM systems where the Alamouti code is used to map adjacent
subcarriers (space-frequency) or symbols (space-time) across the
space-frequency grid. Simulation results show that space-time-
frequency coded OFDM systems are more sensitive to CFO effects
than conventional OFDM. We have also presented an analytical
error performance analysis for the case of STC-OFDM over
frequency flat Rayleigh fading channels. The theoretical results
have been validated from the simulations. However the usually
assumed signal independent Gaussian ICI analysis provides

  

Source: Armstrong, Jean - Department of Electrical and Computer Systems Engineering, Monash University

 

Collections: Engineering