On the pilot-data power trade off in single input multiple output systems

Gábor Fodor, M. Telek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

We consider a single cell single input multiple output (SIMO) system employing orthogonal frequency division multiplexing (OFDM). In such systems, setting the pilot-to-data power ratio (PDPR) has a large impact on the spectral and energy efficiency. In this paper we provide a closed form solution for the mean square error (MSE) of the received data as a function of the PDPR assuming Gaussian channels and minimum mean square error (MMSE) equalization. In numerical experiments we find that the MSE is a convex function of the PDPR and study the PDPR that minimizes the MSE as the number of antennas at the base station (BS) grows large. We find that the MSE-minimizing PDPR heavily depends on the number of antennas and the path loss between the mobile station and the BS. Specifically, as the number of antennas grows large, a larger portion of the total power budget needs to be allocated for pilot signals, especially for low path loss users.

Original languageEnglish
Title of host publication20th European Wireless Conference, EW 2014
PublisherVDE VERLAG GMBH
Pages485-492
Number of pages8
ISBN (Print)9783800736218
Publication statusPublished - 2014
Event20th European Wireless Conference, EW 2014 - Barcelona, Spain
Duration: May 14 2014May 16 2014

Other

Other20th European Wireless Conference, EW 2014
CountrySpain
CityBarcelona
Period5/14/145/16/14

Fingerprint

Mean square error
Antennas
Base stations
Orthogonal frequency division multiplexing
Energy efficiency
budget
energy
efficiency
experiment
Experiments

Keywords

  • Cellular networks
  • Channel estimation
  • MIMO systems
  • Power control

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

Cite this

Fodor, G., & Telek, M. (2014). On the pilot-data power trade off in single input multiple output systems. In 20th European Wireless Conference, EW 2014 (pp. 485-492). VDE VERLAG GMBH.

On the pilot-data power trade off in single input multiple output systems. / Fodor, Gábor; Telek, M.

20th European Wireless Conference, EW 2014. VDE VERLAG GMBH, 2014. p. 485-492.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fodor, G & Telek, M 2014, On the pilot-data power trade off in single input multiple output systems. in 20th European Wireless Conference, EW 2014. VDE VERLAG GMBH, pp. 485-492, 20th European Wireless Conference, EW 2014, Barcelona, Spain, 5/14/14.
Fodor G, Telek M. On the pilot-data power trade off in single input multiple output systems. In 20th European Wireless Conference, EW 2014. VDE VERLAG GMBH. 2014. p. 485-492
Fodor, Gábor ; Telek, M. / On the pilot-data power trade off in single input multiple output systems. 20th European Wireless Conference, EW 2014. VDE VERLAG GMBH, 2014. pp. 485-492
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