Abstract
Two channels are considered; a discrete channel which can transmit sequences of binary digits, and a continuous channel which can transmit band limited signals. The performance of a large number of simple signalling alphabets is computed and it is concluded that one cannot signal at rates near the channel capacity without using very complicated, alphabets.
Keywords
SignallingChannel (broadcasting)Simple (philosophy)SIGNAL (programming language)Binary numberChannel capacityComputer scienceTopology (electrical circuits)AlgorithmMathematicsTelecommunicationsArithmeticCombinatorics
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Publication Info
- Year
- 1952
- Type
- article
- Volume
- 31
- Issue
- 3
- Pages
- 504-522
- Citations
- 529
- Access
- Closed
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Cite This
E. N. Gilbert
(1952).
A Comparison of Signalling Alphabets.
Bell System Technical Journal
, 31
(3)
, 504-522.
https://doi.org/10.1002/j.1538-7305.1952.tb01393.x
Identifiers
- DOI
- 10.1002/j.1538-7305.1952.tb01393.x