On Capacity and Bounds for the Gaussian CZIC and CBZIC with Linear Coded Approximation

Konferenz: European Wireless 2013 - 19th European Wireless Conference
16.04.2013 - 18.04.2013 in Guildford, UK

Tagungsband: 19th European Wireless Conference

Seiten: 6Sprache: EnglischTyp: PDF

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Autoren:
Patel, Aaqib; Merchant, S. N. (Department of Electrical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai-400076)
del Águila, Fernando Reátegui; Imran, Muhammad Ali; Tafazolli, Rahim (Center for Communication Systems Research,University of Surrey, Guildford, GU2 7XH, UK)
Khan, Zafar Ali; Desai, U. B. (Department of Electrical Engineering, Indian Institute of Technology Hyderabad, Yeddumailaram, AP 502205, India)

Inhalt:
In this paper, we study the Gaussian Cognitive Zinterference channel (GCZIC) and its multiuser extension the Gaussian Cognitive Broadcast Z-interference channel (GCBZIC). We review some known capacity results and bounds for the GCZIC for various levels of interference. We derive a new improved inner bound for the GCZIC under conditions which intersect with those for which the capacity is not known. Then we derive the capacity results and bounds for the GCBZIC when the broadcast component of the channel is a degraded broadcast channel. Index Terms — Gaussian Cognitive Interference channels, Z-Interference Channels, Degraded Broadcast Z-Interference Channels, Linear Coded Approximation.