Paper Info
Title
A filterbank structure for voice-band PCM channel pre-equalization
Abstract
A non-maximally decimated filterbank structure for pre-equalizing channels with intersymbol interference (ISI) is investigated. The impulse response of the channel is assumed to be known at the transmitter. Compared with the classical Tomlinson-Harashima (1971) precoding technique, the proposed pre-equalizer compensates for the channel without increasing the number of the received signal levels (channel alphabet). The proposed technique does not require the channel to be minimum-phase. The filterbank structure adds redundancy to the input signal to compensate for the channel ISI while keeping the transmitted power bounded. The proposed pre-equalization is particularly useful for data transmission over voice-band PCM channels. The upstream PCM channel is bandlimited, causing severe ISI at the output of the front-end receiver filter. By using the pre-equalizer at the transmitter, channel ISI can be mitigated.
Year
DOI
Venue
2000
10.1109/ICASSP.2000.861086
ICASSP
Keywords
Field
DocType
proposed pre-equalizer,channel alphabet,filterbank structure,pre-equalizing channel,severe isi,proposed technique,proposed pre-equalization,upstream pcm channel,voice-band pcm channel pre-equalization,voice-band pcm channel,channel isi,front end,fir filters,telephony,fir filter,pulse code modulation,pulse modulation,transmitter,intersymbol interference,isi,down sampling,impulse response,sampling methods,data transmission,quantization,encoding,filter bank,bandwidth
Intersymbol interference,Telecommunications,Equalization (audio),Computer science,Filter bank,Electronic engineering,Artificial intelligence,Finite impulse response,Pulse-code modulation,Pattern recognition,Communication channel,Nyquist ISI criterion,Precoding
Conference
ISSN
ISBN
Citations 
1520-6149
0-7803-6293-4
2
PageRank 
References 
Authors
0.50
4
2
Name
Order
Citations
PageRank
N. S. Alagha1183.43
P. Kabal237447.49