上海交通大学吴泳澎博士学术报告

来源:信息科学与技术学院  作者:类先富  日期:2019-11-26  点击数:289

报告题目(Title):     On the Fundamental Limits of MIMO Massive Access

报告专家(Speaker):吴泳澎

报告时间(Time):    2019年11月29日(周五)上午9:50-10:50

报告地点(Venue):  国际合作中心(一食堂背面)2楼主会议室

主持人(Chair):         类先富


内容提要(Outline of the talk):

The multiple access channel (MAC) with many-user is a general model for massive machine type communications. In this paradigm, the number of users may be comparable or even larger than the coding blocklength $n$. In contrast, classical MAC often assumes fixed and small number of the users. In this paper, we consider the massive access channel with multiple antennas system, where the base station (BS) with multiple receiving antennas serves the users in a single cell. The magnitude of users is assumed to grow unbounded with $n$. We investigate the achievable region of MIMO massive access channel, where among the total users, an unknown subset referred to active users may transmit data periodically. The asymptotic active user identification cost is also quantified. With the theoretical analysis, it was shown that given finite number of the receiving antennas, the individual rate for each user can be formulated as the sum rate multiplied by some specific factors, which correspond to the allocation of sum capacity. The successive decoding does not apply due to the interferences from growing unbounded users. Theoretical analysis shows that successive decoding works only when the number of receiving antennas goes to infinity with the increasing codelength.


报告人简介(Biography of the Speaker)

吴泳澎,博士,上海交通大学副教授。吴老师持续开展了多用户MIMO传输理论方法、大规模MIMO传输理论方法以及泛在电力物联网的研究,目前已在IEEE核心期刊发表论文60多篇。 获2017年中国科协“青年托举人才计划”, 博士论文“多用户MIMO传输理论方法”获首届中国通信学会“全国信息通信领域优秀博士学位论文”,2014年被评为德国洪堡学者,2012年获现代无线通信论坛(WAWC12)最佳学生报告奖。现任IEEE Senior Member,并受邀担任IEEE Transactions on Communications, IEEE Access 以及 IEEE Communications Letters编委,  IEEE Journal of Selected Area in CommunicationsSCI一区)专刊 《5G物理层安全》 客座主编(Lead Guest Editor, IEEE Wireless Communications (SCI一区)专刊 《5G及未来无线通安全》客座主编。同时,多次担任IEEE ICCGlobecomVTC等国际著名会议技术委员会主席及委员。现主持国家自然科学基金、中国科协以及国家电网等科研项目多项。