Enhanced Primary and Secondary Performance Through Cognitive Relaying and Leveraging Primary Feedback

• Published in: IEEE transactions on vehicular technology Vol. 63; no. 5; pp. 2236 - 2247
• Main Authors: Hamza, Doha, Aissa, Sonia
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.06.2014; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; ARQ feedback; Automatic repeat request; Channels; Cognitive radio; cognitive relaying; Connection and protection apparatus; Delay; delay analysis; Delays; Electrical engineering. Electrical power engineering; Exact sciences and technology; Feedback; Information, signal and communications theory; Markov chains; Markov processes; Mathematical analysis; Queues; Radiocommunication specific techniques; Radiocommunications; Receivers; Relaying; Relays; Sensors; Signal and communications theory; Signal representation. Spectral analysis; Signal, noise; spectrum sensing; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Terminals; Throughput; Transmission and modulation (techniques and equipments); cognitive radio (CR); Markov chains; cognitive relaying; delay analysis; Automatic repeat request (ARQ) feedback; spectrum sensing; Performance evaluation; Relaying; Relay; Information rate; Feedback regulation; Markov chain; Feedback; Spectrum analysis; Traffic control; Delay time; Queue; Teletraffic; Resource sharing; Failures; Information transmission; Queueing system; Traffic management; Signal analysis; Automatic repeat request; Software radio
• ISSN: 0018-9545; 1939-9359
• DOI: 10.1109/TVT.2013.2292532

We consider a spectrum-sharing system, where the primary terminal operates in a time-slotted fashion and is active only when it has a packet to send. The secondary terminal uses spectrum sensing results and the primary automatic repeat request (ARQ) feedback to access the channel probabilistically....