In order to reduce interference to primary users and provide better performance of detection probability and channel capacity in multi-user cooperative spectrum
In Heterogeneous Wireless Sensor Networks, the mobility of the sensor nodes becomes essential in various applications. During node mobility, there are possibili
In cyberspace security,the privacy in location-based services(LBSs) becomes more critical. In previous solutions,a trusted third party(TTP) was usually employed
For telecommunication operators,how to improve the utilization of bandwidth resources is always a problem which worthy of study,nowadays,this issue has become m