Abstract
In this letter, a new cognitive radio sensing strategy termed k-hop sharable sensing (KS-sensing) is proposed. In KS-sensing, the sensing outcomes of a secondary user (SU) can be shared by neighboring SUs within k hops, while the primary users (PUs) are protected in terms of detection probability. As the number of sensing channels increases, compared to the SU's individual local sensing, KS-sensing not only reduces the sensing overhead and the interference ratio but also improves the channel access opportunity. Numerical results are presented to demonstrate the effectiveness of KS-sensing.
Original language | English |
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Article number | 6209370 |
Pages (from-to) | 1244-1247 |
Number of pages | 4 |
Journal | IEEE Communications Letters |
Volume | 16 |
Issue number | 8 |
DOIs | |
State | Published - 2012 |
Bibliographical note
Funding Information:Manuscript received April 4, 2012. The associate editor coordinating the review of this letter and approving it for publication was A. Conti. This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2011-0021152). The authors are with the Graduate School of Information Technology and Telecommunications, Inha University, Incheon 402-751, Korea (e-mail: [email protected]). Digital Object Identifier 10.1109/LCOMM.2012.052512.120749
Keywords
- Cognitive radio
- k-hop sharable sensing
- sensing