Current Result Document :
| 한글제목(Korean Title) |
Channel Switching Minimization Using Prior Knowledge of Spectrum Usage of Primary User for Cognitive Radio Networks |
| 영문제목(English Title) |
Channel Switching Minimization Using Prior Knowledge of Spectrum Usage of Primary User for Cognitive Radio Networks |
| 저자(Author) |
Saleem Aslam
Kyung Geun Lee
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| 원문수록처(Citation) |
VOL 22 NO. 01 PP. 3A ~ 0002 (2012. 04) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
The cognitive radio (CR) is the most feasible solution to cater the problem of spectrum scarcity. It allows communication devices to select the channel dynamically for its operation. However, the channel selection should be intelligent enough to meet the stringent demands of modern communication systems. The performance of the cognitive radio system (CRS) is heavily influenced by the number of channel switching for CR from one channel to the other. The results will be more severe if the new selected channel has low data rate capacity. A robust channel selection scheme can help to significantly reduce the number of channel switchings for a smart CR. In this paper, we propose a channel selection and allocation scheme that minimizes the number of channel switching by maintaining the historical channel usage patterns of the PU. The channels with least PU usage are selected from the pool of available channels. By selecting least PU activity channels, there are fewer chances of the collisions with PUs and there are better transmission opportunities to CRS. Simulation results show that the performance of our proposed scheme is much better as compared to the random channel selection scheme in terms of collision rate.
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| 키워드(Keyword) |
switching
cognitive radio
primary user
channel prior usage
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| 파일첨부 |
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