Title :
Signal quality estimation algorithm
Author :
Gunaratne, S. ; Taaghol, P. ; Tafazolli, R.
Author_Institution :
Center for Commun. Syst. Res., Surrey Univ., Guildford, UK
fDate :
10/26/2000 12:00:00 AM
Abstract :
An improved signal quality estimation algorithm applicable to CDMA-based mobile communication systems, is proposed. The algorithm estimates the Eb/N0 at the receiver end by operating on the despread symbols of the received in-phase (I) and quadrature (Q) channels. The improvement in performance is obtained by the addition of a smoothing filter to the existing algorithm. The performance of the algorithm is compared initially in a Gaussian channel and then in a time-varying channel that emulates fast fading
Keywords :
Gaussian channels; code division multiple access; land mobile radio; time-varying channels; CDMA-based mobile communication systems; Gaussian channel; despread symbols; in-phase channel; quadrature channel; signal quality estimation algorithm; smoothing filter; time-varying channel;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001323