Performance Evaluation of Cooperative Spectrum Sensing Based on Multi-Antenna Energy Detection with Bit Mapping Alignment Technology

• Main Authors: Guan-Ting Lai, 賴冠廷
• Other Authors: Shiann-Shiun Jeng
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/ah2588

碩士 === 國立東華大學 === 電機工程學系 === 107 === Cognitive Radio (CR) technique is proposed to enhance the spectrum efficiency by detecting the spectrum holes so that the users may utilize the licensed spectrum. In this thesis, CR is simulated by using the cooperative spectrum detection with multi-antenna application on cognitive relays for energy detection. Beamforming is also used for signal reception and decision fusion. The received data is sent to the data fusion center by multi-antenna technique, and the system detection efficiency is calculated by bit mapping alignment. According to the simulation results obtained, the proposed method in this thesis achieves better performance than previous spectrum detection methods under various number of antennas and relays.