全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于连续感知信息的认知无线电普适性框架

DOI: 10.13190/j.jbupt.2015.04.021, PP. 105-109

Keywords: 认知无线电,普适性框架,连续功率分配,信道容量

Full-Text   Cite this paper   Add to My Lib

Abstract:

认知无线电网络中,受当前频谱感知和功率分配概念的束缚,次用户系统的频谱利用率和信道容量仍十分有限.分析了传统的认知无线电框架,提出了一种基于连续感知信息的普适性框架,即次用户在得到感知信息后,不再对主用户是否存在进行二元判决,而是根据连续感知信息直接进行功率分配.分别在连续功率分配和多电平功率分配的场景下进行了数学建模,分析结果表明,所提出的普适性框架给出了认知无线电系统性能的理论上限,而传统的3种认知无线电框架仅是所提出的普适性框架的特殊情况.

References

[1]  Gong Xiaowen, Vorobyov S A, Tellambura C. Optimal bandwidth and power allocation for sum ergodic capacity under fading channels in cognitive radio networks[J]. IEEE Trans. Signal Process., 2011, 59(4): 1814-1826.
[2]  Ding Guoru, Wang Jinlong, Wu Qihui, et al. Robust spectrum sensing with crowd sensors [J]. IEEE Trans. Commun., 2014, 62(9): 3129-3143.
[3]  Kang Xin, Liang Yingchang, Garg H K, et al. Sensing-based spectrum sharing in cognitive radio networks [J]. IEEE Trans. Veh. Technol., 2009, 58(8): 4649-4654.
[4]  Chen Zhong, Wang Xiaodong, Zhang Xianda. Continuous power allocation strategies for sensing-based multiband spectrum sharing [J]. IEEE J. Sel. Area Comm., 2013, 31(11): 2409-2419.
[5]  Chen Zhong, Gao Feifei, Zhang Zhengwei, et al. Multiple-level power allocation strategy in cognitive radio networks [J]. Eurasia Journal on Advances in Signal Processing, 2014, 2014(15):1-7.
[6]  Convex optimization [M]. Cambridge Univ. Press: Boyd S, Vandenberghe L., 2003: 321-324.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133