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A study of performance and complexity for IEEE 802.11n MIMO-OFDM GIS solutions

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publicationInternational Conference on Communications, 2004
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Pages3822 - 3826
Number of pages4
ISBN (Print)0780385330
StatePublished - Jun 2004
EventInternational Conference on Communications - Paris, France


ConferenceInternational Conference on Communications
Abbreviated titleICC


This paper investigates the point-to-point PHY layer performance of two newly proposed IEEE 802.11n candidate solutions by suggesting extensions to 802.11a. The new solutions incorporate a MIMO architecture for the wireless links between the network terminals. The FEC block in the PHY layer chain is enhanced with a turbo encoder to provide interleaving gains for the larger sized PSDUs (1-4095 bytes). Due to the ambitious data rate targets identified in 802.11n, where 'on-air' data rates of 108-320 Mbit/s are quoted, a large MIMO architecture comprising of 6 transmit and 6 receive antenna elements is adopted. ML detection using such large configurations is often prohibitively complex due to an unrealistic enumerated symbol list. In this paper we propose ZF-GIS and MMSE-GIS solutions to ease complexity at the receiver. The PER performance offered by both proposals is compared together with the added computational requirements in constructing their matrices. Link throughputs are compared to demonstrate the viability of the chosen solutions.

Additional information

Conference Proceedings/Title of Journal: IEEE International Conference on Communications, 2004. ICC 2004 Rose publication type: Conference contribution Sponsorship: This research was sponsored by QinetiQ Ltd. Terms of use: Copyright © 2004 IEEE. Reprinted from Proceedings of IEEE International Conference on Communications, 2004. 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.

    Research areas

  • 802.11a, 802.11n, MIMO, MMSE-GIS, ZF-GIS


International Conference on Communications

Abbreviated titleICC
Duration20 Jun 200424 Jun 2004

Event: Conference

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