Mobile Networks and Applications

, Volume 17, Issue 5, pp 685–694 | Cite as

Energy Conservation via Antenna Scheduling in Fiber-Connected Femto Base Stations

  • Haoming LiEmail author
  • Alireza Attar
  • Victor C. M. Leung


We formulated the energy consumption of previously proposed broadband wireless access with fibre-connected massively distributed antennas (BWA-FMDA) architecture under a generalized framework and developed an optimization tool in a femtocell cluster based on coordinated multipoint transmission (femto-CoMP) to maximize energy efficiency by adjusting the number of transmission antennas and controlling transmission power in zero-forcing beamforming. Based on the analysis results, we group every two neighboring antennas in multiple femto-CoMP configurations and proposed a new network configuration scheme that uses antenna scheduling to simultaneously improve spectral and energy efficiency. Compared with standalone femtocells, the proposed scheme is shown in a typical office building to increase energy efficiency by 64 % ~ 160 % and spectral efficiency by 2 % ~ 36 %. Compared with our previous BWA-FMDA configurations, the new scheme is able to improve energy efficiency by 6 % ~ 68 % and spectral efficiency by 15 % ~ 55 %. The exact gain depends on network configurations and transmission power levels.


femtocell CoMP radio over fiber 



coordinated multipoint transmission


radio over fiber


femtocell cluster based on coordinated multipoint transmission



This work was supported in part by the Canadian Natural Sciences and Engineering Research Council through grant STPGP 396756, and a UBC Postgraduate Scholarship. The authors wish to thank the anonymous reviewers for their constructive comments that have greatly improved this work.


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Haoming Li
    • 1
    Email author
  • Alireza Attar
    • 1
  • Victor C. M. Leung
    • 1
  1. 1.Department of Electrical and Computer EngineeringThe University of British ColumbiaVancouverCanada

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