Student or educator? Sign up with your school email and get 6 months of Pro free.
CoChat
Sign Up
Cited by 522

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

On channel capacity per unit cost

Verdu, S.·1990·IEEE Transactions on Information Theory
DOI 10.1109/18.57201
Open this paper in CoChat — free account

Abstract

Memoryless communication channels with arbitrary alphabets where each input symbol is assigned a cost are considered. The maximum number of bits that can be transmitted reliably through the channel per unit cost is studied. It is shown that, if the input alphabet contains a zero-cost symbol, then the capacity per unit cost admits a simple expression as the maximum normalized divergence between two conditional output distributions. The direct part of this coding theorem admits a constructive proof via Stein's lemma on the asymptotic error probability of binary hypothesis tests. Single-user, multiple-access, and interference channels are studied.>

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1109/18.57201

Cites

17 of 17 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 17 references

Cited by

See all 522

Metadata

Authors
Verdu, S.
Venue
IEEE Transactions on Information Theory
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
1990
Volume
36
Issue
5
Pages
1019-1030
ISSN
0018-9448 (ISSN-L)
DOI
10.1109/18.57201
OpenAlex
W2130128605
Cited by
522
References
17
FWCI
2.00
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: On channel capacity per unit cost. https://app.cochat.ai/papers/10.1109/18.57201
The paper
Verdu, S. (1990). On channel capacity per unit cost. IEEE Transactions on Information Theory. https://doi.org/10.1109/18.57201

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.