Error statistics of real-time power measurements in cellular channels with multipath and shadowing

A. J. Goldsmith, L. J. Greenstein, G. J. Foschini

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

8 Scopus citations

Abstract

Real-time power measurements performed by cellular receivers are essential for power control, handoff and dynamic channel allocation. For best results, the measurement filter bandwidth must be sufficiently narrow to average out multipath fluctuations, yet sufficiently wide to follow shadow fading fluctuations. Our study considers two measurement methods and two filter types. We show, using standard models for the multipath and shadow fadings, that the dB measurement error tends to be Gauss-distributed and zero-mean. The performance metric then becomes the standard deviation (δ) of the dB error, which can be minimized by proper choice of the filter bandwidth. We find that δ can be kept to values of 3dB or lower over a wide range of mobile velocities and shadow fading characteristics. Also, we discuss the potential gains in measurements accuracy associated with diversity reception and broadband channels.

Original languageEnglish (US)
Title of host publicationIEEE Vehicular Technology Conference
PublisherPubl by IEEE
Pages108-111
Number of pages4
ISBN (Print)078031266X
StatePublished - 1993
Externally publishedYes
EventProceedings of the 43rd IEEE Vehicular Technology Conference - Secaucus, NJ, USA
Duration: May 18 1993May 20 1993

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)0740-0551

Conference

ConferenceProceedings of the 43rd IEEE Vehicular Technology Conference
CitySecaucus, NJ, USA
Period5/18/935/20/93

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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