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Energy-Efficient Spectrum Sensing For Cognitive Radio Enabled Remote State Estimation Over Wireless Channels, Xianghui Cao, Xiangwei Zhou, Lu Liu, Yu Cheng
Energy-Efficient Spectrum Sensing For Cognitive Radio Enabled Remote State Estimation Over Wireless Channels, Xianghui Cao, Xiangwei Zhou, Lu Liu, Yu Cheng
Articles
The performance of remote estimation over wireless channels is strongly affected by sensor data losses due to interference. Although the impact of interference can be alleviated by applying cognitive radio technique which features in spectrum sensing and transmitting data only on clear channels, the introduction of spectrum sensing incurs extra energy expenditure. In this paper, we investigate the problem of energy-efficient spectrum sensing for remotely estimating the state of a general linear dynamic system, and formulate an optimization problem which minimizes the total sensor energy consumption while guaranteeing a desired level of estimation performance. We model the problem as a …
Covariance Matrix Adaptation Evolutionary Strategy Optimization Of Patch Antenna For Wireless Communication, Ali Al-Azza, Frances J. Harackiewicz, Hemachandra Reddy Gorla
Covariance Matrix Adaptation Evolutionary Strategy Optimization Of Patch Antenna For Wireless Communication, Ali Al-Azza, Frances J. Harackiewicz, Hemachandra Reddy Gorla
Articles
Covariance matrix adaptation evolutionary strategy algorithm is applied to optimize a dielectric loaded microstrip patch antenna. The optimization process performance is enhanced by not considering the symmetrical factor of the antenna structure. The antenna is optimized to work for IEEE 802.11a WLAN 5-6 GHz band. Experimental measurements have also been performed to validate the performance of the proposed antenna.