Paper Info
Title
Time-domain equalizer for filter bank-based multicarrier communications.
Abstract
Filter bank-based multicarrier systems have two main advantages over the OFDM/DMT modulation method. Firstly, the bank selectivity is a design parameter for precise spectrum control. This provides resistance against narrowband interference and allows to use very narrow guard bands around the multicarrier signal. Secondly, the guard period applied in OFDM-systems to combat ISI becomes unnecessary. This saves some bandwidth for data transmission. However, efficient channel equalization techniques for such systems are still an active area of development.In this paper, a cosine-modulated filter bank is used as a transmultiplexer, because these modulated transforms provide fast implementation structures. A time-domain equalizer is used to linearize the channel phase response before the receiver filter bank, whereas the amplitude response is corrected afterwards with a single multiplier per subchannel.Here we develop two simple ways to design an equalizer, assuming static channel conditions. The equalizer performance is then compared with a MIMO-combiner, and the pros and cons of both equalization principles are discussed.
Year
DOI
Venue
2001
10.1109/ICC.2001.936300
ICC
Keywords
Field
DocType
FIR filters,MIMO systems,channel bank filters,equalisers,least squares approximations,time-domain synthesis,transmultiplexing,FIR filter,MIMO-combiner,OFDM/DMT modulation,amplitude response,bandwidth saving,channel equalization,channel phase response linearisation,constrained least squares,cosine-modulated filter bank,data transmission,design parameter,equalizer performance,fast implementation structures,filter bank selectivity,filter bank-based multicarrier communications,modulated transforms,multicarrier signal,narrow guard bands,narrowband interference resistance,receiver filter bank,spectrum control,static channel conditions,time-domain equalizer,transmultiplexer
Equalization (audio),Computer science,Control theory,Filter bank,Phase response,Communication channel,Adaptive equalizer,Bandwidth (signal processing),Finite impulse response,Orthogonal frequency-division multiplexing
Conference
Volume
Citations 
PageRank 
1
1
0.35
References 
Authors
0
1
Name
Order
Citations
PageRank
Juuso Alhava1638.31