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Cited by 231

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Capacity of a Class of Cognitive Radio Channels: Interference Channels With Degraded Message Sets

Wu, Wei, Vishwanath, Sriram, Arapostathis, Ari·2007·IEEE Transactions on Information Theory

Abstract

This correspondence is motivated by two different scenarios. The first is a cognitive radio system where a cognitive radio knows a ldquodumbrdquo radio's message and the second is a sensor network in a correlated field where sensors possessing a nested message structure assist one another's information transmission. Both scenarios are modeled using the framework of discrete memoryless interference channels with degraded message sets (IFC-DMS), a setting where one of the two transmitters in an interference channel knows both the messages to be conveyed to the receivers. Both inner and outer bounds are provided for a class of IFC-DMS channels. The case of the Gaussian interference channels with degraded message sets is also investigated. In this case, achievability and converse arguments are presented for a class of ldquoweakrdquo interference channels, resulting in a characterization of this class' capacity region.

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Metadata

Authors
Wu, W., Vishwanath, S., & Arapostathis, A.
Venue
IEEE Transactions on Information Theory
Published
2007-11
Volume
53
Issue
11
Pages
4391-4399
ISSN
0018-9448 (ISSN-L)
OpenAlex
W2119007567
Cited by
231
References
0
FWCI
41.63
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Capacity of a Class of Cognitive Radio Channels: Interference Channels With Degraded Message Sets. https://app.cochat.ai/papers/10.1109/tit.2007.907436
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Wu, W., Vishwanath, S., & Arapostathis, A. (2007). Capacity of a Class of Cognitive Radio Channels: Interference Channels With Degraded Message Sets. IEEE Transactions on Information Theory. https://doi.org/10.1109/tit.2007.907436

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