基于区块链与深度学习的空间分集协作频谱感知系统

doi:10.11959/j.issn.1000-0801.2023193

Abstract

Abstract:

Cooperative spectrum sensing is a key technology in cognitive radio.A data-driven intelligent cooperative spectrum sensing system was proposed with spatial diversity running on a smart contract to address issues of security, privacy, incentive and hidden terminals in cooperative spectrum sensing.Specifically, a motivated spectrum sensing system was designed by taking advantage of the decentralization of blockchain technology and the immutability of data.Secondly, a deep learning-based approach was proposed to identify malicious users in the system.In addition, to achieve higher accuracy in recruiting sensing nodes more efficiently in the system, a hard decision cooperative spectrum sensing fusion algorithm based on performance weights and spatial diversity was designed.The experimental results indicate that the proposed solution outperforms traditional cooperative spectrum sensing algorithms in terms of security, privacy, motivation, and sensing accuracy.

Key words: cooperative spectrum sensing, cognitive radio, blockchain, smart contract, machine learning

CLC Number:

TP393

Zhongshan XIAO, Chunqi WANG, Daquan FENG. A spatial diversity cooperative spectrum sensing system based on blockchain and deep learning[J]. Telecommunications Science, 2023, 39(10): 49-63.

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References 20

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变量	名称	类型
addr	地址	address
taskId	任务ID	uint
goalNum	目标招募人数	uint
currentNum	当前招募的人数	uint
deposit	押金	uint
channelNum	需检测的信道数	uint
award	奖励	uint
notice	公告	string
sensingData	感知数据	string
taskEnd	任务结束时间	uint
resultData	感知融合后的结果	string

用户	用户类别	地址	频段数	押金	奖励	感知数据	招募数量
Admin1	频谱管理者	0x78731···cabaB	1	2ether	6ether	\	3
User1	协作频谱感知用户	0x5B38D···eddC4	1	\	\	1	\
User2	协作频谱感知用户	0xAb848···35cb2	1	\	\	0	\
User3	协作频谱感知用户	0x4B209···C02db	1	\	\	1	\

对比项	随机森林	逻辑回归	SVM	LightGBM	XGBoost	DNN
准确率	0.777	0.645	0.639	0.760	0.731	0.787
AUC	0.835	0.713	0.703	0.825	0.800	0.860
F1-score	0.759	0.652	0.651	0.750	0.722	0.765
召回率	0.698	0.662	0.671	0.715	0.700	0.690

A spatial diversity cooperative spectrum sensing system based on blockchain and deep learning

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