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A comparison of multi-carrier OFDM and single carrier iterative equalisation for future high performance wireless local area networks

Research output: Contribution to journalArticle

  • AG Lillie
  • A Prado-Miguelez
  • JP McGeehan
Original languageEnglish
Pages (from-to)733 - 737
JournalIEEE 56th Vehicular Technology Conference, 2002 (VTC 2002-Fall)
StatePublished - Sep 2002
Event56th Vehicular Technology Conference 2002 (VTC 2002-Fall) - Vancouver, Canada


There has been a strong trend towards the specification of multi-carrier coded orthogonal frequency division multiplexing (COFDM) in the physical layer of emerging high performance wireless local area networks (WLAN). This trend is based on an alleged combination of enhanced performance and lower terminal complexity. However, significant advances have been made in the field of single carrier equalisation, where iterative equalisation and decoding now offers excellent error rate performance in slow and fast fading channels. This paper investigates the possibility of employing a single carrier system using iterative equalisation at the receiver as a direct competitor to multi-carrier COFDM. The throughput, range and terminal complexities of a COFDM solution are compared with those of a single carrier iterative equalised approach for identical indoor channel conditions. The paper demonstrates that iterative equalisation outperforms COFDM in an indoor environment. However, from a cost/performance viewpoint, COFDM is still seen as the more attractive solution.

Additional information

Publisher: Institute of Electrical and Electronics Engineers, Inc. (IEEE) Name and Venue of Conference: IEEE 56th Vehicular Technology Conference, 2002 (VTC 2002-Fall) Rose publication type: Conference contribution Sponsorship: A.G. Lillie would like to acknowledge the financial support of the Engineering and Physical Sciences Research Council (EPSRC) and the authors would like to thank Toshiba Research Europe Limited (TREL) for financial and academic support. Terms of use: Copyright © 2002 IEEE. Reprinted from Proceedings of IEEE 56th Vehicular Technology Conference, 2002. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or 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 must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it Contributor (Other): Institute of Electrical and Electronics Engineers (IEEE)

Research areas

  • equalisation, orthogonal frequency division multiplexing, turbo coding


56th Vehicular Technology Conference 2002 (VTC 2002-Fall)

Duration1 Sep 2002 → …

Event: Conference

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