Browsing by Author "Wang, Szu-Liang"

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Exact Performance of NOMA with Full-Duplex Energy Harvesting Relaying in Nakagami-m Frequency-Selective Fading Channel
(2018-01-01)
Wang, Szu-Liang
;
Wang, Chih-Yu
;
Chung, Wei-Ho
;
交大名義發表
;
National Chiao Tung University
In this paper, the NOMA transmission with fullduplex energy harvesting relaying ( FDEHR) is investigated. Closed-form expressions for the outage probability of the near and far users are presented over Nakagami-m frequency-selective fading channel. Monte Carlo simulations are provided throughout to verify the accuracy of the derivations. Simulation and numerical results demonstrate that the near user without FDEHR possesses lower outage probability than the far user. While the outage performance of the far user could be improved and better than the near user with FDEHR.
The Novel Crowdsourcing Algorithm for Cooperative Spectrum Sensing
(2018-01-01)
Wang, Szu-Liang
;
Tsai, Tsung-Hung
;
Chung, Wei-Ho
;
交大名義發表
;
National Chiao Tung University
Cooperative spectrum sensing with the crowdsourcing model has become an innovative and efficient technique for obtaining the spectrum state information (SSI) under the cognitive radio networks. Specifically, the secondary users sense the licensed spectrum then send the SSI back to the fusion center according to the crowdsourcing model. In practice, the users with malicious or erroneous behavior are always existing among those secondary users. Thus the accuracy of spectrum sensing would be influenced by those users. In this paper, a novel crowdsourcing algorithm for cooperative spectrum sensing is proposed to detect the malicious users and further improve the accuracy of spectrum sensing. The agreement ratio is introduced in the proposed scheme, which is an important information under the crowdsourcing framework. Simulation results show that the proposed algorithm possesses better performance than the existing approaches.