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A novel method for joint PAPR reduction and sidelobe suppression in NC-OFDM based Cognitive Radio system


The high peak to average power ratio (PAPR) and large spectrum sidelobe power are the two major limitations at the transmitter side of the NC-OFDM based Cognitive Radio (CR) system, which may significantly reduce the power efficiency and performance of the system. There are many techniques in the literature to reduce high PAPR and large spectrum sidelobe power. In this paper, we present a new optimization method for the reduction of both PAPR and sidelobe power jointly. It aims at the joint utilization of extending the outer constellation points and adding pre-determined tones on to the subcarriers. Since the convex optimization is computationally complex in nature, a suboptimal method is also proposed whose simulation result shows that there is a significant improvement in terms of PAPR and sidelobe reduction.......

【作者名称】: Martha Ann Stephen, Yamuna K. Moorthy, Sakuntala S. Pillai
【作者单位】: Dept. of Electronics and Communication Engineering, Mar Baselios College of Engineering and Technology, Thiruvananthapuram, India, Dept. of Electronics and Communication Engineering, Mar Baselios College of Engineering and Technology, Thiruvananthapuram, India, Dept. of Electronics and Communication Engineering, Mar Baselios College of Engineering and Technology, Thiruvananthapuram, India
【关 键 词】: Peak to average power ratio, Convex functions, Mathematical model, Market research, Bandwidth, Interference
【会议名称】: 2016 International Conference on Emerging Technological Trends
【期刊论文数据库】: [DBS_Articles_01]
【期刊论文编号】: 101,170,280
【摘要长度】: 822
【会议组织】: Dept. of Electronics and Communication Engineering, Mar Baselios College of Engineering and Technology, Thiruvananthapuram, India;Dept. of Electronics and Communication Engineering, Mar Baselios College of Engineering and Technology, Thiruvananthapuram, India;Dept. of Electronics and Communication Engineering, Mar Baselios College of Engineering and Technology, Thiruvananthapuram, India;
【会议时间】: 2016
【上篇论文】: 外文会议 - SYNTHESIS OF LPG FROM SYNTHESIS GAS
【下篇论文】: 外文会议 - Sustainable sustained growth?

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