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Link adaptation performance evaluation for a MIMO-OFDM physical layer in a realistic outdoor environment

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

Original languageEnglish
Title of host publicationIEEE 64th Vehicular Technology Conference, (VTC-Fall 2006), Montreal, Canada
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Pages1 - 5
Number of pages5
ISBN (Print)1424400635
StatePublished - Sep 2006
Event64th Vehicular Technology Conference 2006 (VTC 2006-Fall) - Montreal, Canada


Conference64th Vehicular Technology Conference 2006 (VTC 2006-Fall)
Period1/09/06 → …


This paper presents a downlink performance analysis of a link adaptation (LA) algorithm applied to a MIMO-OFDM Physical Layer (PHY) which is a popular candidate for future generation cellular communication systems. The new LA algorithm attempts to maximize throughput and adaptation between various modulation and coding schemes in combination with both space-time block codes (STBC) and spatial multiplexing (SM) is based on knowledge of SNR and H matrix determinant; the parameters which are found to have the most significant influences on the system throughput. By means of ray-tracing software, a detailed example coherent time-variant channel trace is generated. Subsequent application of physical layer simulation software to this channel trace yields throughput results for adaptive MIMO-OFDM for the cases of the proposed LA algorithm, an algorithm based on SNR only, an algorithm based on SNR and H matrix determinant with fixed threshold levels for different SM modes and the optimal case.

Additional information

Conference Proceedings/Title of Journal: IEEE 64th Vehicular Technology Conference, VTC-Fall 2006 Conference Organiser: IEEE Rose publication type: Conference contribution Sponsorship: The authors wish to acknowledge the financial support of Dorothy Hodgkin Postgraduate Awards (DHPA) and Toshiba Research Europe Limited (TREL) and to thank Dr. Yong Sun and Dr. Magnus Sandell of TREL for their technical input. Terms of use: Copyright © 2006 IEEE. Reprinted from Proceedings of IEEE 64th Vehicular Technology Conference, Fall 2006. 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.

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64th Vehicular Technology Conference 2006 (VTC 2006-Fall)

Duration1 Sep 2006 → …

Event: Conference

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