Performance improvement for OFDM-RoF transported 60 GHz system using spatial diversity and multiplexing

Usman Habib, Anthony E Aighobahi, Manish Nair, Huiling Zhu, Terence Quinlan, Stuart D Walker, Nathan J Gomes

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

Abstract

60 GHz system architectures with Radio over Fiber (RoF) transport and integrated transmitters/receivers provide a comprehensive solution for future mobile systems. Since 60 GHz communication relies on line-of-sight (LoS) conditions and narrow-beam antennas to compensate the high path-loss, it has limitations in terms of coverage for multiple user locations. In this paper, performance analysis of a 60 GHz integrated transmitter and receiver system supported by RoF transport has been performed experimentally at different user locations for up to 1.5m transmission distance. Extension of experimental results to prove feasibility for longer distances has been shown with a simulation model, whose results at various shorter distances have been benchmarked against the acquired experimental results at different user locations. A modified version of the Saleh Valenzuela channel has been used to model the millimeter wave (mmW) LoS indoor experimental environment. Furthermore, as a proof of concept, we present an experimental analysis demonstrating an improvement in performance of the proposed RoF based 60 GHz system using spatial diversity and multiplexing. Channel measurements at different transmitter/receiver locations and their processing have shown that an improvement (decrease from 12.5% to 10.5%) in Error Vector Magnitude (EVM) can be achieved using the Alamouti Space Time Block Coding algorithm. Then it has been shown that a two-fold data rate increase can be obtained by combining data from two transmitter locations using the Zero Forcing algorithm.
Original languageEnglish
Title of host publication2017 IEEE International Conference on Communications Workshops (ICC Workshops)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages211-216
Number of pages6
ISBN (Electronic)978-1-5090-1525-2
ISBN (Print)978-1-5090-1526-9
DOIs
Publication statusE-pub ahead of print - 25 May 2017
Event2017 IEEE International Conference on Communications Workshops (ICC Workshops) - Paris, France
Duration: 21 May 201725 May 2017

Publication series

NameIEEE International Conference on Communications Workshops
PublisherIEEE
ISSN (Electronic)2474-9133

Conference

Conference2017 IEEE International Conference on Communications Workshops (ICC Workshops)
Period21/05/1725/05/17

Keywords

  • Receivers
  • Multiplexing
  • Optical transmitters
  • Bandwidth
  • Channel models
  • Spatial diversity
  • Radio over Fiber
  • Remote Antenna Unit
  • Space Time Block Coding
  • Zero Forcing
  • Error Vector Magnitude

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