An LLR-based Cognitive Transmission Strategy for Higher Spectrum Reutilization

被引：0

作者：

Haghighi, Kasra ^{[1
]}

Strom, Erik G. ^{[1
]}

Agrell, Erik ^{[1
]}

机构：

[1] Chalmers, Dept Signals & Syst, Commun Syst Grp, S-41296 Gothenburg, Sweden

来源：

2011 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE (GLOBECOM 2011) | 2011年

关键词：

Cognitive radio; hidden Markov model; interference ratio; spectrum sensing and spectrum utilization;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Reutilization of the spectrum licensed to services with low occupancy is of great interest for cognitive radios (CRs). To achieve this goal, we introduce a simple hidden Markov model which captures the primary users activity, signal uncertainties, and noise. For evaluating the performance of any CR, two new criteria are presented entitled spectrum utilization ratio (UR) and interference ratio (IR). Based on this model and new measures, a new a-posterior log-likelihood-ratio based CR is designed and implemented. Its performance is compared with standard energy-detection based spectrum-sensing CR. We demonstrate more than 300% increase in UR for up to 1% allowed interference at the SNR of -5dB.

引用

页数：5

共 50 条

[41] Clustering-Based Spectrum Sharing Strategy for Cognitive Radio Networks
Dai, Jingyi
Wang, Shaowei
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2017, 35 (01) : 228 - 237
[42] A Spectrum Access Strategy for Cloud-based Cognitive Radio Networks
Chen, Jiangjingxian
Guo, Xin
Zhang, Shibing
2016 8TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS & SIGNAL PROCESSING (WCSP), 2016,
[43] Complexity based Sensing Strategy for Spectrum Sensing in Cognitive Radio Networks
Huang, Kewen
Liu, Yimin
Hong, Yuanquan
Mu, Junsheng
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS, 2019, 13 (09) : 4372 - 4389
[44] Achievable Transmission Rate of the Secondary User in Cognitive Radio Networks with Hybrid Spectrum Access Strategy
Tan, Xiaobo
Zhang, Hang
Hu, Jian
IEEE COMMUNICATIONS LETTERS, 2013, 17 (11) : 2088 - 2091
[45] Performance Analysis of a Dynamic Spreading Spectrum Strategy Based Spectrum Sharing for Cognitive Radio Networks
Jin, Shan
Chen, Yading
Li, Shaoqian
2012 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING (WICOM), 2012,
[46] A Near-Optimal LLR Based Cooperative Spectrum Sensing Scheme for CRAHNs
Alvi, Sheeraz A.
Younis, Muhammad S.
Imran, Muhammad
Fazal-e-Amin
Guizani, Mohsen
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2015, 14 (07) : 3877 - 3887
[47] Learning-Based Opportunistic Spectrum Access with Adaptive Hopping Transmission Strategy
Derakhshani, Mahsa
Tho Le-Ngoc
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2012, 11 (11) : 3957 - 3967
[48] Performance analysis of access strategy based on spectrum pool in cognitive wireless network
Liu, Hong-Jie
Li, Shu-Fang
Beijing Youdian Daxue Xuebao/Journal of Beijing University of Posts and Telecommunications, 2009, 32 (01): : 1 - 4
[49] A Hybrid Handoff Strategy Based on Dynamic Spectrum Aggregation in Cognitive Radio System
Yin, Cong
Tan, Xuezhi
Ma, Lin
2013 IEEE TENCON SPRING CONFERENCE, 2013, : 213 - 217
[50] Traffic Pattern Based Adaptive Spectrum Handoff Strategy for Cognitive Radio Networks
Hanif, Irfan
Zeeshan, Muhammad
Ahmed, Akhlaque
2016 10TH INTERNATIONAL CONFERENCE ON NEXT GENERATION MOBILE APPLICATIONS, SECURITY AND TECHNOLOGIES (NGMAST), 2016, : 18 - 23

← 1 2 3 4 5 →