多用户MISO通信系统中的鲁棒发射波束形成
Robust Transmit Beamforming in a Multiuser MISO Communication System
黄永伟   Yongwei Huang
报告人照片   黄永伟,广东工业大学信息工程学院教授。曾在香港科技大学、香港中文大学、意大利那不勒斯“腓特烈二世”大学、香港浸会大学等学校分别以副研究员、博士后、访问研究员、研究助理教授等身份从事教学与研究工作。他的主要研究领域包括最优化理论与算法、阵列信号处理、无线通信信号处理、雷达波形优化、金融决策模型优化等。已在SIAM杂志、INFORMS杂志、IEEE杂志、中国科学数学英文版上发表三十余篇论文。根据Google Scholar,目前H-index为19,文章被用次数为1426,其中单篇被引次数超过310。
  Consider a unicast downlink beamforming optimization problem with robust signal-to-interference-plus-noise ratio constraints to account for imperfect channel state information at the base station in a multiple-input single-output (MISO) communication system. The convexity of this robust beamforming problem remains unknown. A slightly conservative version of the robust beamforming problem is thus studied herein as a compromise. It is in the form of a semi-infinite second-order cone program (SOCP) and, more importantly, it possesses an equivalent and explicit convex reformulation, due to a linear matrix inequality (LMI) description of the cone of Lorentz-positive maps. Hence, the conservative robust beamforming problem can be efficiently solved by an optimization solver. Additional robust shaping constraints can also be easily handled to control the amount of interference generated on other co-existing users such as in cognitive radio systems.
报告时间:2017年08月17日09时30分    报告地点:西区电二楼208会议室
报名截止日期:2017年08月17日    可选人数:35