— The performances in cooperative communications depend on careful resource allocation such as relay selection and power control, but traditional centralized resource allocation ...
Most of the existing literature on cooperative relay networks has focused on frequency– nonselective channels or frequency–selective channels with multi–carrier transmission...
Abstract— Cooperative transmission can greatly improve communication system performance by taking advantage of the broadcast nature of wireless channels. Most previous work on re...
Jianwei Huang, Zhu Han, Mung Chiang, H. Vincent Po...
Transmit beamforming is an energy-efficient wireless communication technique that allows a transmitter with two or more antennas to focus its bandpass signal in an intended directi...
—We consider a point-to-multipoint cognitive radio network that shares a set of channels with a primary network. Within the cognitive radio network, a base station controls and s...
Anh Tuan Hoang, Ying-Chang Liang, Md Habibul Islam