New Achievable Rates for Gaussian Partially Cognitive Interference Channels With Multiple Cognitive Pairs

This paper characterizes achievable rate regions for the Gaussian partially cognitive interference channel with multiple cognitive pairs (K-PCIFC), where the cognitive transmitters know one part of the primary transmitter's message. We explore a novel methodology using the deterministic discret...

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Veröffentlicht in:IEEE transactions on communications Jg. 62; H. 6; S. 2051 - 2060
Hauptverfasser: Schrammar, Nicolas, Skoglund, Mikael, Chao Wang, Kildehoj Rasmussen, Lars
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York, NY IEEE 01.06.2014
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
achievable rates
Applied sciences
AWGN channels
channel models
Channels
Coding, codes
cognitive radio
Constants
Distributed memory
Encoding
Exact sciences and technology
Gaussian
Guidelines
Information, signal and communications theory
Interference
Interference channels
Lattices
Messages
Quantization (signal)
Radio transmitters
Radiocommunication specific techniques
Radiocommunications
Receivers
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Transmitters
Transmitters. Receivers
AWGN channels
achievable rates
cognitive radio
channel models
Interference channels
Parameter estimation
Transmitter
Cognition
Gaussian process
Coding
Channel estimation
Deterministic model
Software radio
ISSN:0090-6778, 1558-0857, 1558-0857
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Beschreibung
Zusammenfassung:This paper characterizes achievable rate regions for the Gaussian partially cognitive interference channel with multiple cognitive pairs (K-PCIFC), where the cognitive transmitters know one part of the primary transmitter's message. We explore a novel methodology using the deterministic discrete superposition model (DSM). We find codes and their achievable rate regions in the DSM, and we show that they yield achievable rate regions in the Gaussian model. Our coding scheme in the DSM can be applied in general scenarios. We devise an achievable rate region for the K-PCIFC, which is within a constant gap to known outer bounds for K = 2 in the weak interference regime. From our expressions we derive guidelines for designing the cognitive link between the primary transmitter and the cognitive transmitters. Furthermore, we show that the gain from cognition diminishes for increasing K.
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ISSN:0090-6778
1558-0857
1558-0857
DOI:10.1109/TCOMM.2014.2321566