Hao Zhao Tao Luo Guangxin Yue Xin He Myopic sensing for opportunistic spectrum access using channel correlation. 512-516 2009 IWCMC http://doi.acm.org/10.1145/1582379.1582490 conf/iwcmc/2009 db/conf/iwcmc/iwcmc2009.html#ZhaoLYH09