2008年1月
Interference information based power control for cognitive radio with multi-hop cooperative sensing
IEICE TRANSACTIONS ON COMMUNICATIONS
- ,
- ,
- ,
- 巻
- E91B
- 号
- 1
- 開始ページ
- 70
- 終了ページ
- 76
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1093/ietconi/e9l-b.1.70
- 出版者・発行元
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Reliable detection of other radio systems is crucial for systems that share the same frequency band. In wireless communication channels, there is uncertainty in the received signal level due to multipath fading and shadowing. Cooperative sensing techniques in which radio stations share their sensing information can improve the detection probability of other systems. In this paper, a new cooperative sensing scheme that reduces the false detection probability while maintaining the outage probability of other systems is investigated. In the proposed system, sensing information is collected using multi-hop transmission from all sensing stations that detect other systems, and transmission decisions are based on the received sensing information. The proposed system also controls the transmit power based on the received CINRs from the sensing stations. Simulation results reveal that the proposed system can reduce the outage probability of other systems. or improve its link success probability.
- リンク情報
- ID情報
-
- DOI : 10.1093/ietconi/e9l-b.1.70
- ISSN : 0916-8516
- eISSN : 1745-1345
- CiNii Articles ID : 10026826439
- Web of Science ID : WOS:000252617100010