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Kouichi Yoshida

dblp:233/4270 · DBLP profile ↗
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1ranked-venue papers
0as first author
0since 2021 · last 1986
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Computer networks · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer networks
1 paper
Physical-layer communications · 100%

Topics — the 4 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Physical-layer communications
digital subscriber line		 0.011986
The Loop Coverage Comparison Between TCM and Echo Canceller Under Various Noise Considerations · IEEE Trans. Commun. 1986
Physical-layer communications
duplexing		 0.011986
The Loop Coverage Comparison Between TCM and Echo Canceller Under Various Noise Considerations · IEEE Trans. Commun. 1986
Physical-layer communications › interference cancellation
echo cancellation		 0.011986
The Loop Coverage Comparison Between TCM and Echo Canceller Under Various Noise Considerations · IEEE Trans. Commun. 1986
Physical-layer communications › multiplexing
time compression multiplexing		 0.011986
The Loop Coverage Comparison Between TCM and Echo Canceller Under Various Noise Considerations · IEEE Trans. Commun. 1986

Methods — techniques the papers use, named apart from their topics

impulse noise evaluation · 0.0cable utility design · 0.0
YearPublicationVenuePosition
1986 The Loop Coverage Comparison Between TCM and Echo Canceller Under Various Noise Considerations
abstract
This paper describes loop coverage evaluations of two-wire digital subscriber transmission systems to support the CCITT recommended 1-430 interface. Several range-limiting factors are discussed and a cable utility design for two representative two-wire digital subscriber transmission systems is presented. The two transmission systems are time compression multiplexing (TCM) and echo canceller (EC), utilizing the AMI line code and full cosine rolloff line equalization for both systems. A new impulse noise evaluation is applied to cable utility design, because impulse noise is one of the most stringent range-limiting factors, especially for TCM in utilizing existing subscriber loops. Comparison of TCM with EC is also carried out according to various range-limiting factors. As a result, it is noted that the 320 kbit/s line bit rate TCM is more applicable in NTT's exchange area coverage than the 160 kbit/s EC to achieve the2B + Dbasic interface transmission.
Ryoichi Komiya, Kouichi Yoshida, Norio Tamaki
 IEEE Trans. Commun.2