学 术 报 告 会

题  目: From Matrix Decomposition to Channel Decomposition:

A Path to Achieving MIMO Limit

报告人: Dr. Yi Jiang

　　　  　 San Diego, CA, USA, Qualcomm Inc.

时  间：2010年3月2日（星期二）下午14：30

地  点：电三楼314室电子工程与信息科学系第一会议室

主 办：信息学院电子工程与信息科学系

 

Abstract:

The MIMO (multi-input multi-output) technology is the key to the next-generation broadband wireless communications, such as the LTE and the Gigabit WiFi. In this talk, we start with an in-depth analysis of the classic V-BLAST technique. Although the V-BLAST is almost as old as the notion of MIMO, it is found to have some properties which still surprise us. We will then go on to introduce a class of nonlinear MIMO transceiver designs, which combine the V-BLAST receiver and a precoder which is a function of the channel state information at the transmitter (CSIT). One design of particular interest is the so-called uniform channel decomposition (UCD) which can transform a MIMO channel into several identical scalar ones without causing capacity loss. The design of the MIMO transceiver is made possible by a new matrix decomposition technique called the generalized triangular decomposition (GTD), which finds its applications in areas much broader than the MIMO transceiver design.