Auxiliary Control Channel for Spectrum Sensing in Cognitive Radio Systems
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概要
- 論文の詳細を見る
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.
- 社団法人電子情報通信学会の論文
- 2009-07-22
著者
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SUM Chin-Sean
National Institute of Information and Communications Technology (NICT)
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Sum Chin
National Institute of Information and Communications Technology (NICT)
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Sum Chin‐sean
National Institute Of Information And Communications Technology (nict)
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Alemseged Yohannes
New Generation Wireless Communications Research Center Nation Institute Of Information And Communica
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Tran Ha
National Institute Of Information & Communications Technology (nict)
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SUN Chen
New Generation Wireless Communications Research Center National Institute of Information and Communi
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TRAN Ha
New Generation Wireless Communications Research Center National Institute of Information and Communi
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HARADA Hiroshi
New Generation Wireless Communications Research Center National Institute of Information and Communi
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TRAN HaNguyen
New Generation Wireless Communications Research Center National Institute of Information and Communi
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Tran Hanguyen
New Generation Wireless Communications Research Center National Institute Of Information And Communi
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Alemseged Yohannes
New Generation Wireless Communications Research Center National Institute Of Information And Communi
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Harada H
New Generation Wireless Communications Research Center National Institute Of Information And Communi
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Sun Chen
New Generation Wireless Communications Research Center National Institute Of Information And Communi
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Sun Chen
New Generation Wireless Communications Research Center Nation Institute Of Information And Communica
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Sum Chin‐sean
独立行政法人情報通信研究機構
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Harada H
Laboratory Of Medicinal Plant Science Tokyo University Of Pharmacy And Life Science School Of Pharma
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Harada Hiroshi
New Generation Wireless Communications Research Center Nation Institute Of Information And Communica
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