Paper Info
Title
Frequency-shift zero-forcing time-varying equalization for doubly selective SIMO channels
Abstract
This paper deals with the problem of designing linear time-varying (LTV) finite-impulse response zero-forcing (ZF) equalizers for time- and frequency-selective (so-called doubly selective) single-input multiple-output (SIMO) channels. Specifically, relying on a basis expansion model (BEM) of the rapidly time-varying channel impulse response, we derive the canonical frequency-domain representation of the minimal norm LTV-ZF equalizer, which allows one to implement it as a parallel bank of linear time-invariant filters having, as input signals, different frequency-shift (FRESH) versions of the received data. Moreover, on the basis of this FRESH representation, we propose a simple and effective low-complexity version of the minimal norm LTV-ZF equalizer and we discuss the relationships between the devised FRESH equalizers and a LTV-ZF equalizer recently proposed in the literature. The performance analysis, carried out by means of computer simulations, shows that the proposed FRESH-LTV-ZF equalizers significantly outperform their competitive alternative.
Year
DOI
Venue
2006
10.1155/ASP/2006/47261
EURASIP J. Adv. Sig. Proc.
Keywords
Field
DocType
linear time-varying,ltv-zf equalizer,fresh representation,minimal norm ltv-zf equalizer,linear time-invariant filter,time-varying equalization,finite-impulse response zero-forcing,basis expansion model,selective simo channel,proposed fresh-ltv-zf,fresh equalizer,canonical frequency-domain representation,zero forcing
Equalizer,Impulse response,Frequency shift,Computer vision,Equalization (audio),Computer science,Control theory,Algorithm,Communication channel,Artificial intelligence,Zero Forcing Equalizer,Channel impulse response
Journal
Volume
Issue
ISSN
2006,
1
1687-6180
Citations 
PageRank 
References 
4
0.43
12
Authors
1
Name
Order
Citations
PageRank
Francesco Verde125424.42