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D2D Communications Underlying Cellular Networks
Date: 2015/1/13             Browse: 643

Speaker:Daquan Feng

Time: Jan. 13, 3:15-4:15pm

Location: Room 220, Building 8, Yueyang Road Campus

Abstract:

As the popularity of powerful mobile devices, there is a growing trend for proximity-based applications, such as peer-to-peer (P2P) file sharing, local multicasting and advertising. To satisfy the increasing demand of high data-rate local services and provide better user experience as well as alleviate the huge infrastructure investment of operators, device-to-device (D2D) communications have being considered as one of the key techniques in the 5G wireless networks.

With D2D communications, proximity users in a cellular network can communicate directly to each other without going through the base station (BS). It can potentially increase system spectral-efficiency (SE) and device energy-efficiency (EE). However, D2D communications may generate harmful interference into the existing cellular network if not designed properly. Therefore, interference management is one of the most challenging and important issues in D2D communications. This presentation will focus on D2D interference management including two parts: quality-of-service (QoS) aware admission control and SE/EE based mode selection. Cross-layer optimization and concave-convex procedures (CCCP) are exploited to solve the two optimization problems, respectively.

Bio:

DAQUAN FENG is currently pursuing his Ph.D. degree at National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu, China. From August 2011 to October 2014, he was working as a visiting student in the School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA. His research interests include device-to-device communications, full-duplex communications, energy-efficient wireless network design, and heterogeneous networks. Three of his papers ranked among the most popular papers in IEEEXplore.                                                                                                                                     

                      SIST-Seminar 14050