Pulse shaping in MIMO COFDM over Rayleigh fading channels

Russell, Julian and Xiang, Wei (2009) Pulse shaping in MIMO COFDM over Rayleigh fading channels. In: ICWMC 2009: 5th International Conference on Wireless and Mobile Communications, 23-29 Aug 2009, Cannes, France.

Abstract

In order to improve the performance of space-time coded(STC) multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) enhancements were implemented in a MatLab simulation by shaping the OFDM pulses transmitted through various terrestrial Rayleigh fading channel models. The goal is to achieve the lowest possible BER to overcome channel effects. The pulse shaping investigated achieved high data rates by being overlapped in the time domain, equalisation was then used to suppress the resulting intersymbol interference. Our finding after researching a number of pulses is that the harris-moerder pulse was the most successful. Unlike the other pulse shapes this shape performs better in a Rayleigh fading channel than in an approximated AWGN channel. This also indicates that simulations using an overly simplified channel model can give results that are likely to be contrary to performance in the real physical environment.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Publisher's version deposited in accordance with the copyright policy of the publisher. ©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Depositing User: Dr Wei Xiang
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering
Date Deposited: 09 Dec 2009 09:47
Last Modified: 02 Jul 2013 23:32
Uncontrolled Keywords: land mobile radio diversity systems; MIMO systems; pulse shaping methods; frequency division multiplexing; fading channels; AWGN channel; COFDM; MIMO; MatLab simulation; Harris-moerder pulse; intersymbol interference; space-time coded multiple input; multiple output; orthogonal; terrestrial
Fields of Research (FOR2008): 09 Engineering > 0906 Electrical and Electronic Engineering > 090609 Signal Processing
10 Technology > 1005 Communications Technologies > 100501 Antennas and Propagation
08 Information and Computing Sciences > 0801 Artificial Intelligence and Image Processing > 080110 Simulation and Modelling
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: doi: 10.1109/ICWMC.2009.36
URI: http://eprints.usq.edu.au/id/eprint/6345

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