講演抄録/キーワード |
講演名 |
2009-07-30 14:10
Auxiliary Control Channel For Spectrum Sensing in Cognitive Radio Systems ○Yohannes D. Alemseged・Chen Sun・Ha Nguyen Tran・Hiroshi Harada(NICT) SR2009-44 |
抄録 |
(和) |
In cognitive radio (CR) system reliable spectrum sensing is the key step to discover spectrum opportunity and exploit it as secondary user. This ensures protection of primary users (PUs) from undesired interference by secondary users (SU). For reliable spectrum sensing, cooperation among individual CR terminals or spectrum sensors becomes essential. The use of commonly known method of cognitive pilot channel (CPC), for the purpose of cooperative sensing, has certain limitation. CPC is primarily intended to disseminate spectrum usage related information for CR terminals residing in a given mesh. Sharing or exchanging of spectrum sensing information may involve closely located CR terminals in which case CPC may not be practical. This paper proposes a novel means of exchanging sensing and related information among CR terminals or between CR terminals and spectrum sensing information sources. We introduce the use of ?auxiliary control channels for spectrum sensing (ACS)- that complements CPC in case of sensing information exchange with in a close range. Additionally, we propose a mechanism of coordination between the CPC and ACS. |
(英) |
In cognitive radio (CR) system reliable spectrum sensing is the key step to discover spectrum opportunity and exploit it as secondary user. This ensures protection of primary users (PUs) from undesired interference by secondary users (SU). For reliable spectrum sensing, cooperation among individual CR terminals or spectrum sensors becomes essential. The use of commonly known method of cognitive pilot channel (CPC), for the purpose of cooperative sensing, has certain limitation. CPC is primarily intended to disseminate spectrum usage related information for CR terminals residing in a given mesh. Sharing or exchanging of spectrum sensing information may involve closely located CR terminals in which case CPC may not be practical. This paper proposes a novel means of exchanging sensing and related information among CR terminals or between CR terminals and spectrum sensing information sources. We introduce the use of ?auxiliary control channels for spectrum sensing (ACS)- that complements CPC in case of sensing information exchange with in a close range. Additionally, we propose a mechanism of coordination between the CPC and ACS. |
キーワード |
(和) |
cognitive radio / spectrum sensing / auxiliary control channel / cognitive pilot channel / distributed spectrum sensing / / / |
(英) |
cognitive radio / spectrum sensing / auxiliary control channel / cognitive pilot channel / distributed spectrum sensing / / / |
文献情報 |
信学技報, vol. 109, no. 155, SR2009-44, pp. 139-144, 2009年7月. |
資料番号 |
SR2009-44 |
発行日 |
2009-07-22 (SR) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
SR2009-44 |