In this paper, exact outage probability and symbol error rate （SER） expressions are derived in closed-form for dual-hop amplify-and-forward cooperative network over independent non-identically Nakagami-m fading chan...In this paper, exact outage probability and symbol error rate （SER） expressions are derived in closed-form for dual-hop amplify-and-forward cooperative network over independent non-identically Nakagami-m fading channels. In the analysis, partial relay selection is employed. This selection scheme proposed recently is found applicable in different wireless systems such as ad hoc and sensor networks. The results are verified through comparison with Monte Carlo simulations.展开更多
This study will attempt to carry out a semiotic analysis of the images that proliferated during the 2012 electoral process in Mexico, from the pre-carnpaign period to June 19, 2012. The analysis carried out here is ba...This study will attempt to carry out a semiotic analysis of the images that proliferated during the 2012 electoral process in Mexico, from the pre-carnpaign period to June 19, 2012. The analysis carried out here is based on the categories proposed by Eliseo Ver6n pertaining to the study of political images--from analysis of the semiological image to media discoursivities--which fit within the framework of the digital public sphere and participative visual activism. The official candidate websites are taken as sample, along with two Facebook sites which summarize critical images as well as the independent informational sites created by the #YoSoy132 movement.展开更多
基金Supported by the National Natural Science Foundation of China （ No. 60972051, 61001107 ）, the Major National Science ＆ Technology Pro- jects （ No. 2010ZX03006-002-04） and the Project of Natural Science Foundation of Jiangsu （ No. BK2010101 ）.
文摘In this paper, exact outage probability and symbol error rate （SER） expressions are derived in closed-form for dual-hop amplify-and-forward cooperative network over independent non-identically Nakagami-m fading channels. In the analysis, partial relay selection is employed. This selection scheme proposed recently is found applicable in different wireless systems such as ad hoc and sensor networks. The results are verified through comparison with Monte Carlo simulations.
文摘This study will attempt to carry out a semiotic analysis of the images that proliferated during the 2012 electoral process in Mexico, from the pre-carnpaign period to June 19, 2012. The analysis carried out here is based on the categories proposed by Eliseo Ver6n pertaining to the study of political images--from analysis of the semiological image to media discoursivities--which fit within the framework of the digital public sphere and participative visual activism. The official candidate websites are taken as sample, along with two Facebook sites which summarize critical images as well as the independent informational sites created by the #YoSoy132 movement.
