Decision-directed beamforming and channel equalization algorithm for IEEE 802.11n OFDM systems

Chih Feng Wu, Chun Hung Chen, Muh Tian Shiue

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In this paper, a decision-directed beamforming and channelequalization algorithm is presented for IEEE 802.11n OFDM systems in the presence of co-channel interference (CCI). Based on the minimum mean-square error (MMSE) criterion, the cost function of the proposed algorithm is to minimize the MSE on each subchannel and to improve the system performance. The beamforming compensation isprimarily used to suppress CCI. The channel equalization is employed to combat the baseband equivalent channel variations induced by multipath fading channel and adaptation of beamformer. The simulations are done for the multipath frequency-selective fadingchannel with CCI to demonstrate that the proposed algorithm can effectively eliminate CCI and compensate the channel distortions. Finally, an FEQ design is done by FPGA evaluation.

Original languageEnglish
Title of host publicationProceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages220-223
Number of pages4
ISBN (Electronic)9781509030712
DOIs
StatePublished - 16 Aug 2016
Event2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016 - Xi'an, China
Duration: 4 Jul 20166 Jul 2016

Publication series

NameProceedings - 2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016

Conference

Conference2016 IEEE International Symposium on Computer, Consumer and Control, IS3C 2016
Country/TerritoryChina
CityXi'an
Period4/07/166/07/16

Keywords

  • Beamforming
  • Channel Equalizaiton
  • FPGA
  • OFDM

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