Dipankar Raychaudhuri Xiangpeng Jing Ivan Seskar Khanh Le Joseph B. Evans Cognitive radio technology: From distributed spectrum coordination to adaptive network collaboration. 278-302 2008 4 Pervasive and Mobile Computing 3 http://dx.doi.org/10.1016/j.pmcj.2008.01.004 db/journals/percom/percom4.html#RaychaudhuriJSLE08