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

C Han, SMD Armour, A Doufexi, KH Ng, JP McGeehan

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

6 Citations (Scopus)
396 Downloads (Pure)

Abstract

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.
Translated title of the contributionLink adaptation performance evaluation for a MIMO-OFDM physical layer in a realistic outdoor environment
Original languageEnglish
Title of host publicationIEEE 64th Vehicular Technology Conference, (VTC-Fall 2006), Montreal, Canada
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1 - 5
Number of pages5
ISBN (Print)1424400635
DOIs
Publication statusPublished - Sep 2006
Event64th Vehicular Technology Conference 2006 (VTC 2006-Fall) - Montreal, Canada
Duration: 1 Sep 2006 → …

Conference

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

Bibliographical note

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.

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Keywords

  • MIMO
  • OFDM

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