Home // ICWMC 2011, The Seventh International Conference on Wireless and Mobile Communications // View article

An Experimental Study of ICI Cancellation in OFDM Utilizing GNU Radio System

Authors:
Miftahur Rahman
Sajjadul Latif
Tasnia Ahad

Keywords: OFDM; USRP; GNU radio; ICI cancellation; 400MHz, software defined radio

Abstract:
Inter-Carrier-Interference (ICI) is an effect that noticeably degrades the quality of the Orthogonal Frequency Division Multiplexing (OFDM) signal. In this work, several proposed ICI cancellation schemes have been tested using open source Software Defined Radio (SDR) named GNU Radio. The GNU Radio system used in the experiment had one Universal Software Radio Peripheral (USRP) module connected to a computer. The USRP had two-daughterboard (RFX-400) for both transmission and reception of radio signals in the 400 MHz band. The input data to the USRP was prepared in compliance with IEEE-802.11b specification. The experimental results were compared with the theoretical results of the proposed Inter-Carrier Interference (ICI) cancellation schemes. The comparison of the results revealed that the new schemes are suitable for high performance transmission. The results of this paper open up new opportunities of using OFDM in 400MHz band, where channels are heavily congested. The new ICI cancellation schemes can be used for Digital TV applications or for secured government communication services in the 400MHz to 500MHz band.

Pages: 94 to 100

Copyright: Copyright (c) IARIA, 2011

Publication date: June 19, 2011

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-140-3

Location: Luxembourg City, Luxembourg

Dates: from June 19, 2011 to June 24, 2011