Censoring for collaborative spectrum sensing in cognitive radios

Jarmo Lundén; Visa Koivunen; Anu Huttunen; H. Vincent Poor

doi:10.1109/ACSSC.2007.4487321

Censoring for collaborative spectrum sensing in cognitive radios

Jarmo Lundén, Visa Koivunen, Anu Huttunen, H. Vincent Poor

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

40 Scopus citations

Abstract

Cooperative spectrum sensing among multiple cognitive radios mitigates the effects of shadowing and fading. However, it also generates overhead traffic which consumes more power in battery operated mobile terminals. In this paper a censoring scheme for spectrum sensing is proposed. Only informative test statistics are transmitted to the fusion center or shared with other secondary users. Two cooperative censoring test statistics based on cyclostationarity are proposed. Constant false alarm rate tests are derived and asymptotic distributions of test statistics established. The asymptotic distributions are approximated using characteristic functions. Limits for the censoring (no-send) region are derived. The performance of the proposed censoring scheme is illustrated through simulations in a multipath radio environment. Only a minor performance loss is experienced in comparison to uncensored cooperative detection even under very strict constaints on communication rates for the secondary users.

Original language	English (US)
Title of host publication	Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC
Pages	772-776
Number of pages	5
DOIs	https://doi.org/10.1109/ACSSC.2007.4487321
State	Published - 2007
Event	41st Asilomar Conference on Signals, Systems and Computers, ACSSC - Pacific Grove, CA, United States Duration: Nov 4 2007 → Nov 7 2007

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)	1058-6393

Other

Other	41st Asilomar Conference on Signals, Systems and Computers, ACSSC
Country/Territory	United States
City	Pacific Grove, CA
Period	11/4/07 → 11/7/07

All Science Journal Classification (ASJC) codes

Signal Processing
Computer Networks and Communications

Access to Document

10.1109/ACSSC.2007.4487321

Cite this

Lundén, J., Koivunen, V., Huttunen, A., & Poor, H. V. (2007). Censoring for collaborative spectrum sensing in cognitive radios. In Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC (pp. 772-776). Article 4487321 (Conference Record - Asilomar Conference on Signals, Systems and Computers). https://doi.org/10.1109/ACSSC.2007.4487321

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title = "Censoring for collaborative spectrum sensing in cognitive radios",

abstract = "Cooperative spectrum sensing among multiple cognitive radios mitigates the effects of shadowing and fading. However, it also generates overhead traffic which consumes more power in battery operated mobile terminals. In this paper a censoring scheme for spectrum sensing is proposed. Only informative test statistics are transmitted to the fusion center or shared with other secondary users. Two cooperative censoring test statistics based on cyclostationarity are proposed. Constant false alarm rate tests are derived and asymptotic distributions of test statistics established. The asymptotic distributions are approximated using characteristic functions. Limits for the censoring (no-send) region are derived. The performance of the proposed censoring scheme is illustrated through simulations in a multipath radio environment. Only a minor performance loss is experienced in comparison to uncensored cooperative detection even under very strict constaints on communication rates for the secondary users.",

author = "Jarmo Lund{\'e}n and Visa Koivunen and Anu Huttunen and Poor, {H. Vincent}",

year = "2007",

doi = "10.1109/ACSSC.2007.4487321",

language = "English (US)",

isbn = "9781424421107",

series = "Conference Record - Asilomar Conference on Signals, Systems and Computers",

pages = "772--776",

booktitle = "Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC",

}

Lundén, J, Koivunen, V, Huttunen, A & Poor, HV 2007, Censoring for collaborative spectrum sensing in cognitive radios. in Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC., 4487321, Conference Record - Asilomar Conference on Signals, Systems and Computers, pp. 772-776, 41st Asilomar Conference on Signals, Systems and Computers, ACSSC, Pacific Grove, CA, United States, 11/4/07. https://doi.org/10.1109/ACSSC.2007.4487321

Censoring for collaborative spectrum sensing in cognitive radios. / Lundén, Jarmo; Koivunen, Visa; Huttunen, Anu et al.
Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC. 2007. p. 772-776 4487321 (Conference Record - Asilomar Conference on Signals, Systems and Computers).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Censoring for collaborative spectrum sensing in cognitive radios

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AU - Huttunen, Anu

AU - Poor, H. Vincent

PY - 2007

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N2 - Cooperative spectrum sensing among multiple cognitive radios mitigates the effects of shadowing and fading. However, it also generates overhead traffic which consumes more power in battery operated mobile terminals. In this paper a censoring scheme for spectrum sensing is proposed. Only informative test statistics are transmitted to the fusion center or shared with other secondary users. Two cooperative censoring test statistics based on cyclostationarity are proposed. Constant false alarm rate tests are derived and asymptotic distributions of test statistics established. The asymptotic distributions are approximated using characteristic functions. Limits for the censoring (no-send) region are derived. The performance of the proposed censoring scheme is illustrated through simulations in a multipath radio environment. Only a minor performance loss is experienced in comparison to uncensored cooperative detection even under very strict constaints on communication rates for the secondary users.

AB - Cooperative spectrum sensing among multiple cognitive radios mitigates the effects of shadowing and fading. However, it also generates overhead traffic which consumes more power in battery operated mobile terminals. In this paper a censoring scheme for spectrum sensing is proposed. Only informative test statistics are transmitted to the fusion center or shared with other secondary users. Two cooperative censoring test statistics based on cyclostationarity are proposed. Constant false alarm rate tests are derived and asymptotic distributions of test statistics established. The asymptotic distributions are approximated using characteristic functions. Limits for the censoring (no-send) region are derived. The performance of the proposed censoring scheme is illustrated through simulations in a multipath radio environment. Only a minor performance loss is experienced in comparison to uncensored cooperative detection even under very strict constaints on communication rates for the secondary users.

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ER -

Censoring for collaborative spectrum sensing in cognitive radios

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