NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
On Gaussian feedback capacityPinsker and Ebert (1970) proved that in channels with additive Gaussian noise, feedback at most doubles the capacity. Cover and Pombra (1989) proved that feedback at most adds half a bit per transmission. Following their approach, the author proves that in the limit as signal power approaches either zero (very low SNR) or infinity (very high SNR), feedback does not increase the finite block-length capacity (which for nonstationary Gaussian channels replaces the standard notion of capacity that may not exist). Tighter upper bounds on the capacity are obtained in the process. Specializing these results to stationary channels, the author recovers some of the bounds recently obtained by Ozarow.
Document ID
19900033826
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Dembo, Amir
(Stanford University CA, United States)
Date Acquired
August 14, 2013
Publication Date
September 1, 1989
Publication Information
Publication: IEEE Transactions on Information Theory
Volume: 35
ISSN: 0018-9448
Subject Category
Communications And Radar
Report/Patent Number
AD-A219141
Accession Number
90A20881
Funding Number(s)
CONTRACT_GRANT: DAAL03-86-K-0045
CONTRACT_GRANT: NSF DCI-85-20136
CONTRACT_GRANT: NAGW-419
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available