Fundamental Limitations in Energy Detection for Spectrum Sensing
AbstractA key enabler for Cognitive Radio (CR) is spectrum sensing, which is physically implemented by sensor and actuator networks typically using the popular energy detection method. The threshold of the binary hypothesis for energy detection is generally determined by using the principles of constant false alarm rate (CFAR) or constant detection rate (CDR). The CDR principle guarantees the CR primary users at a designated low level of interferences, which is nonetheless subject to low spectrum usability of secondary users in a given sensing latency. On the other hand, the CFAR principle ensures secondary users’ spectrum utilization at a designated high level, while may nonetheless lead to a high level of interference to the primary users. The paper introduces a novel framework of energy detection for CR spectrum sensing, aiming to initiate a graceful compromise between the two reported principles. The proposed framework takes advantage of the summation of the false alarm probability
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Hu, X.-L.; Ho, P.-H.; Peng, L. Fundamental Limitations in Energy Detection for Spectrum Sensing. J. Sens. Actuator Netw. 2018, 7, 25.
Hu X-L, Ho P-H, Peng L. Fundamental Limitations in Energy Detection for Spectrum Sensing. Journal of Sensor and Actuator Networks. 2018; 7(3):25.Chicago/Turabian Style
Hu, Xiao-Li; Ho, Pin-Han; Peng, Limei. 2018. "Fundamental Limitations in Energy Detection for Spectrum Sensing." J. Sens. Actuator Netw. 7, no. 3: 25.
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