A paper published by Wei Zhang and Khaled Ben Letaief, Chair Professor and Head of the Electronic and Computer Engineering Department, is one of the Top 100 papers accessed in IEEE Xplore during the month of January 2009. The paper, titled "Cooperative spectrum sensing with transmit and relay diversity in cognitive radio networks," was published in the December 2008 issue of the IEEE Transactions on Wireless Communications, the flagship IEEE journal on Wireless communications.