葡萄牙University of Porto计算机科学系通信研究所Miguel Rodrigues教授将于2010年3月26日下午来我系作学术报告，有关信息如下，欢迎感兴趣的老师和同学届时参加。
时间：3月26日（周五）下午2点30分
地点：通信与探测研究所会议室（西边紫菘学生公寓入口旁）
题目：Optimum Linear Precoding for Multiple-Input Multiple-Output Gaussian Channels with Arbitrary Inputs
报告人：Miguel Rodrigues教授
Abstract:
A large body of optimization problems abound in the telecommunications field, with particular enticing ones relating to the design of transmit and receive filters for communications systems. In this talk, we will consider the design of linear precoders for multiple-input multiple-output (MIMO) Gaussian channels with arbitrary inputs. This problem is applicable to a large number of relevant communications scenarios such as multiple antenna systems, code division multiple access (CDMA) systems or digital subscriber line (DSL) systems.
In particular, we capitalize on the recently discovered relationship between mutual information and minimum mean-squared error (MMSE) to determine the form of the linear precoder that maximizes the reliable information transmission rate of a multiple-input multiple-output Gaussian channels with arbitrary inputs. We also exploit the mutual information-MMSE relationship to specialize the form of the optimal precoder to the asymptotic regimes of low and high signal-to-noise ratio (SNR). We show that optimal linear precoding offers the potential to significantly increase the transmission rate of current systems.
In addition, we also consider optimum power allocation in MIMO Gaussian channels with arbitrary inputs. We put forth a novel mercury-waterfilling interpretation for the optimal power allocation procedure that generalizes the waterfilling interpretation applicable to parallel independent Gaussian channels with Gaussian inputs as well as the conventional mercury-waterfilling interpretation applicable to parallel independent Gaussian channels with arbitrary inputs. This represents joint work with Fernando Perez-Cruz and Sergio Verdú from Princeton University, U.S.A.
In this talk, we shall also overview the research work carried out at Instituto de Telecomunicações at the University of Porto, Portugal in the areas of information theory and communications, signal and image processing as well as networks.
Miguel Rodrigues教授简介
Miguel Rodrigues received the Licenciatura degree in Electrical Engineering from the Faculty of Engineering of the University of Porto, Portugal in 1998 and the Ph.D. degree in Electronic and Electrical Engineering from University College London, U.K. in 2002.
From January 2003 to September 2006, he has held postdoctoral research appointments at Cambridge University, U.K., both as a Research Associate and later as a Senior Research Associate. From September 2006 to March 2007, he was a Visiting Researcher at Princeton University, U.S.A. He joined the faculty of the Department of Computer Science, Faculty of Sciences of the University of Porto as an Assistant Professor in March 2007. He is also a Visiting Fellow at Cambridge University, U.K. He has also been a Visiting Researcher at Princeton University, U.S.A. in the Summers of 2007, 2008 and 2009. His research interests lie in the general areas of information theory, communications theory and signal processing.
