article

Inter-Carrier Interference Cancellation for OFDM Systems with Macrodiversity and Multiple Frequency Offsets

Authors:

Christian Ibars,

Yeheskel Bar-NessAuthors Info & Claims

Wireless Personal Communications: An International Journal, Volume 26, Issue 4

Pages 285 - 304

https://doi.org/10.1023/A:1025661601206

Published: 01 September 2003 Publication History

Abstract

Macrodiversity provides improved coverage in wireless communications. It is used in single frequency networks (SFN), and in some cellular systems, when a mobile is in a soft handoff. The combination of OFDM and macrodiversity is very attractive for the ability of OFDM to cope with delay spread resulting from macrodiversity. However, such system is very sensitive to poor frequency synchronization among transmitters, which results in multiple frequency offsets. These cause inter-carrier interference (ICI), which severely degrades performance. In this paper we quantify the degradation, providing expressions for the receiver SINR, and find the optimum receiver frequency synchronization. Furthermore, we propose to mitigate ICI degradation using linear and decision feedback interference cancellation. In each case, we provide a solution using both the decorrelating and the MMSE criteria. Simulation results show that, for macrodiversity OFDM, our approach results in significantly improved performance and robustness to frequency offsets.

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Cited By

Kumar NSohi B(2016)Evaluation of Conventional and Wavelet Based OFDM System for ICI CancellationWireless Personal Communications: An International Journal10.1007/s11277-016-3537-991:3(1435-1446)Online publication date: 1-Dec-2016
https://dl.acm.org/doi/10.1007/s11277-016-3537-9
Schellmann MJungnickel V(2009)Multiple CFOs in OFDM-SDMA uplinkEURASIP Journal on Wireless Communications and Networking10.1155/2009/9090752009(1-14)Online publication date: 1-Jan-2009
https://dl.acm.org/doi/10.1155/2009/909075

Index Terms

Inter-Carrier Interference Cancellation for OFDM Systems with Macrodiversity and Multiple Frequency Offsets
1. Computing methodologies
  1. Modeling and simulation
2. Networks
  1. Network services
    1. Network management
  2. Network types
    1. Mobile networks
    2. Wireless access networks

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Published In

cover image Wireless Personal Communications: An International Journal

Wireless Personal Communications: An International Journal Volume 26, Issue 4

September 2003

87 pages

ISSN:0929-6212

Issue’s Table of Contents

Copyright © Copyright © 2003 Kluwer Academic Publishers.

Publisher

Kluwer Academic Publishers

United States

Publication History

Published: 01 September 2003

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Cited By

Kumar NSohi B(2016)Evaluation of Conventional and Wavelet Based OFDM System for ICI CancellationWireless Personal Communications: An International Journal10.1007/s11277-016-3537-991:3(1435-1446)Online publication date: 1-Dec-2016
https://dl.acm.org/doi/10.1007/s11277-016-3537-9
Schellmann MJungnickel V(2009)Multiple CFOs in OFDM-SDMA uplinkEURASIP Journal on Wireless Communications and Networking10.1155/2009/9090752009(1-14)Online publication date: 1-Jan-2009
https://dl.acm.org/doi/10.1155/2009/909075

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