[1] Bao Xu, Song Tiecheng, Shen Lianfeng, et al. Outage performance analysis of multiple users in cognitive networks [J]. Journal of Southeast University (English Edition), 2010, 26 (3): 375-378. [doi:10.3969/j.issn.1003-7985.2010.03.001]
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Outage performance analysis of multiple users in cognitive networks(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 26
- Issue:
- 2010 3
- Page:
- 375-378
- Research Field:
- Information and Communication Engineering
- Publishing date:
- 2010-09-30
Info
- Title:
- Outage performance analysis of multiple users in cognitive networks
- Author(s):
- Bao Xu1; 2; Song Tiecheng1; Shen Lianfeng1
-
1 National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
2 School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang 212013, China
- PACS:
- TN915.02
- DOI:
- 10.3969/j.issn.1003-7985.2010.03.001
- Abstract:
- A cooperative model of multiple primary and secondary users coexisting cognitive network is presented. In this model, the control center is aware of all the users’ locations in order to allocate the nearest secondary user to the primary user. The control center is aware of the information of the unused spectral resources in terms of the feedback of the sensing results from the secondary users. It allocates idle frequency bands among the secondary users. The primary user accesses the base station(BS)in orthogonal subchannels, and it cooperatively transmits packets with the secondary user and exploits the free band assigned by the control center to amplify-and-forward what it receives immediately. Under this scenario, the outage probability of the cooperative transmission pair of the primary and secondary transmitters is derived. The numerical simulation of the outage probabilities as a function of primary transmission probability ps, power allocation ratio ξ between the primary and secondary users, and the numbers of the primary and secondary users are given respectively. The results show that the optimal system performance is achieved under the conditions of ξ=0.5 and the numbers of the primary and the secondary users being equal.
References:
[1] Federal Communication Commission. Spectrum policy task force report. ET Docket No.02-135[R]. Washington, DC: Federal Communication Commission, 2002.
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[6] Jovicic A, Viswanath P. Cognitive radio: an information-theoretic perspective[J]. IEEE Trans Inf Theory, 2009, 55(9): 3945-3958.
[7] Simeone O, Bar-Ness Y, Spagnolini U. Stable throughput of cognitive radios with and without relaying capability [J]. IEEE Trans Commun, 2007, 55(12): 2351-2360.
[8] Gambini J, Simeone O, Spagnolini U, et al. Cooperative cognitive radios with optimal primary detection and packet acceptance control [C]//The 8th IEEE Workshop on Signal Processing Advances in Wireless Communications. Helsinki, Finland, 2007:6-10.
[9] Laneman J, Tse D, Wornell G. Cooperative diversity in wireless networks: efficient protocols and outage behavior [J]. IEEE Trans Inf Theory, 2004, 50(12):3062-3080.
Memo
- Memo:
-
Biographies: Bao Xu(1982—), male, graduate; Song Tiecheng(corresponding author), male, doctor, professor, songtc@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.60972026), the Natural Science Foundation of Jiangsu Province(No.BK2008289), Specialized Research Fund for the Doctoral Program of Higher Education(No.20090092110009).
Citation: Bao Xu, Song Tiecheng, Shen Lianfeng. Outage performance analysis of multiple users in cognitive networks[J].Journal of Southeast University(English Edition), 2010, 26(3):375-378.