Energy efficient precoder design for MIMO-OFDM with rate-dependent circuit power

Wang, Zijian;Stupia, Ivan;Vandendorpe, Luc
(2015) IEEE international conference on communications — Location: London (8.June.2015)

Files

mimoofdm.pdf
  • Restricted Access
  • Adobe PDF
  • 109.85 KB
Request a copy
mimoofdm.pdf
  • Closed Access
  • Adobe PDF
  • 109.85 KB
Request a copy

Details

Authors
  • Wang, ZijianUCLouvain
    Author
  • Stupia, Ivanorcid-logoUCLouvain
    Author
  • Vandendorpe, Lucorcid-logoUCLouvain
    Author
Abstract
This paper studies an energy efficient design of pre-coder for point-to-point Multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. Dif-ferently from traditional approaches, the optimal power allo-cation strategy is studied by modelling the circuit power as a rate-dependent function. We show that if the circuit power is a constant plus an increasing and convex function of the transmission rate, the energy efficiency maximization problem can be reformulated as a convex fractional program and solved by means of a simple bisection algorithm. The impact of the system parameters is mathematically analyzed and then confirmed by means of computational results.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Wang, Z., Stupia, I., & Vandendorpe, L. (2015). Energy efficient precoder design for MIMO-OFDM with rate-dependent circuit power. Proceedings of IEEE international conference on communications. Published. IEEE international conference on communications, London. https://doi.org/10.1109/ICC.2015.7248602