Spectrally encoded, multicarrier PSK communication in a multipath channel

This research examines the performance of a spectrally encoded, multicarrier, phase shift keying communications system in a frequency-selective, slowly-fading (FSSF) Rayleigh multipath channel. The literature discusses several frequency domain techniques including spectral encoding that have been us...

Full description

Saved in:
Bibliographic Details
Main Authors: Gaona, C.M., Mills, R.F., Temple, M.A., Hale, T.B.
Format: Conference Proceeding
Language:English
Subjects:
Computer languages
Fading
Frequency domain analysis
Frequency shift keying
Interference
Multipath channels
Performance analysis
Phase shift keying
Rayleigh channels
Signal analysis
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This research examines the performance of a spectrally encoded, multicarrier, phase shift keying communications system in a frequency-selective, slowly-fading (FSSF) Rayleigh multipath channel. The literature discusses several frequency domain techniques including spectral encoding that have been used for interference avoidance and multiple access techniques. This research applies spectral encoding to mitigate the effects of multipath fading. Analysis and Matlab/spl reg/ simulations compare the performance of spectrally encoded and unencoded signals through a multipath fading channel using an L-diversity RAKE receiver. Encoded signals take on the spectral shape of the fading channel transfer function magnitude spectrum. Unencoded signals have a flat magnitude spectrum. Research results indicate for diversities (L) ranging between 2 and 50, spectrally encoded signals need 1.0 to 2.75dB less transmitted normalized bit energy to noise power spectral density ratios (E/sub b//N/sub o/) to achieve the same probability of bit error (P/sub b/) as unencoded signals.
ISSN:2155-7195
2155-7209
DOI:10.1109/DASC.2005.1563305