Performance of the EP-MBCJR algorithm in time dispersive MIMO office environments

CM Vithanage, C Andrieu, RJ Piechocki, J P Coon

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

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This work investigates the performance of a new reduced-complexity trellis decoding algorithm (termed the EPMBCJR algorithm) when employed for the task of equalization in an indoor multiple input multiple output wireless environment. The algorithm is a generic approximate reduced-state variation of the BCJR algorithm modeled after the conventional M-BCJR algorithm. Instead of choosing the active states based on the filtered distribution of states in the forward recursion, the EPMBCJR algorithm selects the active states based on "beliefs" on the states. This can be seen as an application of the concept of "Expectation propagation" and leads to identical forward and backward recursions which can be iterated to improve system performance. A receiver architecture comprising of channel estimation, sampling phase selection and turbo equalization is proposed and its performance evaluated through computer simulations. For the simulation of channels closely resembling the physical environment, we have used channels generated in accordance with the IEEE 802.11n TGn channel models
Translated title of the contributionPerformance of the EP-MBCJR algorithm in time dispersive MIMO office environments
Original languageEnglish
Title of host publicationVehicular Technology Conference 2006 (VTC 2006-Spring), Melbourne, Australia
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1406 - 1410
Publication statusPublished - May 2006
Event63rd Vehicular Technology Conference 2006 (VTC 2006-Spring) - Melbourne, Australia
Duration: 1 May 2006 → …


Conference63rd Vehicular Technology Conference 2006 (VTC 2006-Spring)
Period1/05/06 → …

Bibliographical note

Conference Proceedings/Title of Journal: IEEE 63rd Vehicular Technology Conference, 2006 (VTC 2006-Spring)
Rose publication type: Conference contribution

Sponsorship: The authors would like to thank Toshiba Research Europe Limited, Bristol, U.K. for funding this work

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