Ganti, Radha KrishnaAndrews, Jeffrey G.Zhou, Xiangyun2015-12-1320111536-1276http://hdl.handle.net/1885/78491Information-theoretic security constraints reduce the connectivity of wireless networks in the presence of eavesdroppers, which motivates better modeling of such networks and the development of techniques that are robust to eavesdropping. In this letter,application/pdfen-AUKeywords: colluding eavesdroppers; directional antenna; Eigen-beamforming; Information-theoretic security; Multi-antenna transmission; Multiple transmit antennas; Network connectivity; physical-layer security; Secure wireless network; Single antenna; Beamforming; D beamforming; colluding eavesdroppers; directional antenna; Network connectivity; physical-layer security10.1109/TWC.2010.112310.1010082016-02-24