报告题目：Gaussian Message Passing Iterative Detection for MIMO-NOMA Systems with Massive Access
报告人：Chau Yuen
Associate Professor
Singapore University of Technology and Design
报告地点：物联网科技园大楼西5楼通信技术研究所会议室
Abstract
This talk presents a low-complexity Gaussian Message Passing Iterative Detection (GMPID) algorithm for Multiple-Input Multiple-Output systems with Non-Orthogonal Multiple Access (MIMO-NOMA), in which a base station with Nr antennas serves Nu sources simultaneously. Both Nu and Nr are very large numbers and we consider the cases that Nu > Nr. The GMPID is based on a fully connected loopy graph, which is well understood to be not convergent in some cases. The large-scale property of the MIMO-NOMA is used to simplify the convergence analysis. Firstly, we prove that the variances of the GMPID definitely converge to that of Minimum Mean Square Error (MMSE) detection. Secondly, two sufficient conditions that the means of the GMPID converge to a higher MSE than that of the MMSE detection are proposed. However, the means of the GMPID may still not converge under certain condition. Therefore, a new convergent SA-GMPID is proposed, which converges to the MMSE detection for any Nu > Nr with a faster convergence speed. Finally, numerical results are provided to verify the validity of the proposed theoretical results.
Biography
Chau Yuen received the B.Eng. and Ph.D. degrees from Nanyang Technological University, Singapore, in 2000 and 2004, respectively. In 2005, he was a Post-Doctoral Fellow with Lucent Technologies Bell Labs, Murray Hill, NJ, USA. From 2006 to 2010, he was a Senior Research Engineer with the Institute for Infocomm Research, Singapore, where he was involved in an industrial project developing an 802.11n wireless local area network system and actively participated in the third generation Partnership Project Long-Term Evolution (LTE) and LTE-A standardization. In 2010, he joined the Singapore University of Technology and Design, Singapore, as an Assistant Professor. He has authored over 200 research papers in international journals or conferences. He holds two U.S. patents. He received the IEEE Asia-Pacific Outstanding Young Researcher Award in 2012. He serves as an Editor of the IEEE Transactions on Communications and IEEE Transactions on Vehicular Technology, and was awarded as Top Associate Editor of IEEE Transactions of Vehicular Technology from 2009 to 2015.
南京邮电大学 通信与信息工程学院 通信技术研究所
2018年2月27日