Cognitive Radio Protocols Based on Exploiting Hybrid ARQ Retransmissions

This paper addresses user coexistence in cognitive radio systems by taking advantage of opportunities that arise during ARQ retransmission. It is shown that if these opportunities are properly exploited, nontrivial rates can be made available to a secondary (cognitive) pair while impinging little or...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on wireless communications 2010-09, Vol.9 (9), p.2833-2841
Main Authors: Tannious, Ramy Abdallah, Nosratinia, Aria
Format: Article
Language:English
Subjects:
Applied sciences
Automatic repeat request
Channel state information
Channels
coexistence
Cognitive radio
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
fading channel
hybrid ARQ
Information, signal and communications theory
Interference
Links
Mutual information
outage probability
Performance analysis
Power control
Protocols
Radio
Radiocommunication specific techniques
Radiocommunications
Receivers
Signal and communications theory
Signal, noise
Simulation
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Throughput
Transmission and modulation (techniques and equipments)
Wireless communication
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper addresses user coexistence in cognitive radio systems by taking advantage of opportunities that arise during ARQ retransmission. It is shown that if these opportunities are properly exploited, nontrivial rates can be made available to a secondary (cognitive) pair while impinging little or no interference on the primary pair. This can be accomplished with an oblivious primary system and without assuming any non-causal information at the secondary about the primary data. Several protocols are devised that work with varying amounts of channel state information about the cognitive and primary links. The protocols are further extended to the scenario where multiple cognitive receivers exist. Performance analysis of the protocols is presented and their effectiveness is verified via simulations.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2010.062910.091162