Underlay Cognitive Radio with Full or Partial Channel Quality Information
Joint Authors
Source
International Journal of Navigation and Observation
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-07-25
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Topics
Abstract EN
Underlay cognitive radios (UCRs) allow a secondary user to enter a primary user's spectrum through intelligent utilization of multiuser channel quality information (CQI) and sharing of codebook.
The aim of this work is to study two-user Gaussian UCR systems by assuming the full or partial knowledge of multiuser CQI.
Key contribution of this work is motivated by the fact that the full knowledge of multiuser CQI is not always available.
We first establish a location-aided UCR model where the secondary user is assumed to have partial CQI about the secondary-transmitter to primary-receiver link as well as full CQI about the other links.
Then, new UCR approaches are proposed and carefully analyzed in terms of the secondary user's achievable rate, denoted by C2, the capacity penalty to primary user, denoted by ΔC1, and capacity outage probability.
Numerical examples are provided to visually compare the performance of UCRs with full knowledge of multiuser CQI and the proposed approaches with partial knowledge of multiuser CQI.
American Psychological Association (APA)
Yi, Na& Ma, Yi& Tafazolli, Rahim. 2010. Underlay Cognitive Radio with Full or Partial Channel Quality Information. International Journal of Navigation and Observation،Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-446793
Modern Language Association (MLA)
Yi, Na…[et al.]. Underlay Cognitive Radio with Full or Partial Channel Quality Information. International Journal of Navigation and Observation No. 2010 (2010), pp.1-12.
https://search.emarefa.net/detail/BIM-446793
American Medical Association (AMA)
Yi, Na& Ma, Yi& Tafazolli, Rahim. Underlay Cognitive Radio with Full or Partial Channel Quality Information. International Journal of Navigation and Observation. 2010. Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-446793
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-446793