一种非理想感知条件下的双门限机会频谱接入策略

doi:10.3969/j.issn.1000-0801.2014.08.009

Abstract

Abstract:

To effectively improve the throughput performance of secondary user in cognitive networks, a dual threshold based opportunistic spectrum access policy was proposed, which could be implemented under the condition that secondary user had non-ideal spectrum sensing capability. The proposed policy can take both channel quality information of secondary user and the inaccurate channel occupation information into account, to make secondary user access the channel in sensed idle and busy states with different channel quality thresholds. Based on this, the throughput performance of secondary user can be improved significantly by utilizing the transmission opportunities with good channel quality. With this policy, an optimization problem maximizing the effective throughput of secondary user with interference constraint for protecting primary user was formulated, and the optimal channel quality thresholds were derived under non-ideal spectrum sensing. Simulation results demonstrate the effective throughput performance of secondary user with non-ideal spectrum sensing capability can be improved significantly by implementing the proposed dual threshold based opportunistic spectrum access policy.

Key words: non-ideal spectrum sensing, dual threshold, opportunistic spectrum access, channel quality

Xiaodong Peng,Limin Xiao,Xiaofeng Zhong,Shidong Zhou. A Dual Threshold Based Opportunistic Spectrum Access Policy with Non-Ideal Spectrum Sensing[J]. Telecommunications Science, 2014, 30(8): 60-65.

Figures/Tables 3

References 15

1	Zhao Q , Sadler B . A survey of dynamic spectrum access. IEEE Signal Processing Magazine, 2007, 24(3): 79～89
2	Zhao Q , Geirhofer S , Tong L , et al. Opportunistic spectrum access via periodic channel sensing. IEEE Transactions on Signal Processing, 2008, 56(2): 785～796
3	Li X , Zhao Q , Guan X , et al. Optimal cognitive access of Markovian channels under tight collision constraints. IEEE Journal on Selected Areas Communication, 2011, 29(4): 746～756
4	Chen S , Tong L . Maximum throughput region of multiuser cognitive access of continuous time Markovian channels. IEEE Journal on Selected Areas Communication, 2011, 29(10): 1959～1969
5	Chen S , Tong L . Multiuser cognitive access of continuous time Markov channels: maximum throughput and effective bandwidth regions. Proceedings of Information Theory and Applications Workshop（ITA）， San Diego, CA， 2010: 1～10
6	Xu Y , Wang J , Wu Q , et al. Opportunistic spectrum access in unknown dynamic environment: a game-theoretic stochastic learning solution. IEEE Transactions on Wireless Communication, 2012, 11(4): 1380～1391
7	Kim K , Kwak K , Choi B . Performance analysis of opportunistic spectrum access protocol for multi-channel cognitive radio networks. Journal on Communication Network, 2013, 15(1): 77～86
8	Tan S , Zeidler J , Rao B . Opportunistic channel-aware spectrum access for cognitive radio networks with interleaved transmission and sensing. IEEE Transactions on Wireless Communication, 2013, 12(5): 2376～2388
9	Peng X D , Xiao L M , Zhong X F , et al. Modeling and analysis of an opportunistic transmission scheme based on channel quality information in multi-channel cognitive networks. Proceedings of IEEE WCNC 2013, IEEE Press, Shanghai, China, 2013: 297～302
10	Peng X D , Zhong X F , Xiao L M , et al. Robust opportunistic spectrum access based on channel quality information in varying multi-channel networks. Proceedings of IEEE GLOBECOM 2013, Atlanta, GA, IEEE Press, 2013
11	Peng X D , Zhong X F , Xiao L M , et al. Opportunistic spectrum access based on channel quality under general collision constraints. Proceedings of IEEE PIMRC 2013, IEEE Press, London, UK, 2013
12	Shu T , Krunz M . et al. Throughput-efficient sequential channel sensing and probing in cognitive radio networks under sensing errors. Proceedings of ACM 2009 MobiCom, Beijing, China, 2009: 37～48
13	Liang Y , Zeng Y , Peh E , et al. Sensing-throughput tradeoff for cognitive radio networks. IEEE Transactions on Wireless Communication, 2008, 7(4): 1326～1337
14	Geirhofer S , Tong L , Sadler B . Cognitive medium access:constraining interference based on experimental models. IEEE Journal on Selected Areas Communication, 2008, 26(1): 95～105
15	Geirhofer S , Tong L , Sadler B . A measurement-based model for dynamic spectrum access in WLAN channels. Proceedings of IEEE MILCOM 2006, IEEE Press, Washington DC, USA, 2006: 1～7

Metrics

Recommended 0

No Suggested Reading articles found!

[1]	Shunlan LIU, Yide XIAO, Jianrong BAO. Dual threshold cooperative spectrum sensing algorithm based on stochastic resonance [J]. Telecommunications Science, 2020, 36(12): 33-40.
[2]	Bingqing CAI,Siya XU,Feng QI,Weichun GE,Guiping ZHOU,Botao YU,Yueyue LI. A SA-BP neural network algorithm based channel quality evaluation method in optical access network [J]. Telecommunications Science, 2018, 34(4): 162-172.
[3]	Zhengying Xiao,Xianzhong Xie,Senlin Zhang. Effective Throughput of Cognitive Multiple Access Channel Under Collision Constraints and Imperfect Sensing [J]. Telecommunications Science, 2015, 31(12): 64-69.

A Dual Threshold Based Opportunistic Spectrum Access Policy with Non-Ideal Spectrum Sensing

RichHTML

PDF下载

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 3

References 15

Related Articles 3

Metrics

Recommended 0