!!!!!Upcoming Seminar!!!!!

Speaker 1: Prof. Changchuan Yin

Title: Secrecy Broadcast Transmission Capacity for Heterogeneous Correlated Wireless Ad Hoc Networks


In this talk, the secrecy broadcast transmission capacity of a legitimate wireless ad hoc network coexisted with correlated eavesdroppers is presented. The secrecy broadcast transmission capacity is defined as the product among the spatial density of broadcast transmissions without secrecy outage, the average number of neighbors of a broadcasting node, and the secrecy rate. By modeling the correlation between the legitimate node and the eavesdroppers as a spatial bi-variate Poisson process, the average number of eavesdropping neighbors that can cause secrecy outage is derived. Considering general fading and Rayleigh fading cases, the secrecy broadcast transmission capacity is characterized. Numerical results show that in comparison to the case that without correlation, the correlation between the legitimate nodes and the eavesdroppers degrades the secrecy broadcast transmission capacity.


Changchuan Yin received his Ph.D. degree in Telecommunication Engineering from Beijing University of Posts and Telecommunications (BUPT) in 1998. In January 1998, he joined the School of Information and Communication Engineering, BUPT, where he is currently a Professor and the Director of Communication Network Technology Center. He held visiting position at the University of Sydney in 2004 and at Texas A&M University in 2007-2008, respectively.

His current research interests include cognitive radio, wireless sensor network, energy efficient and energy harvesting wireless communication, and stochastic geometry based network modeling. He was the co-recipient of IEEE International Conference on Wireless Communications and Signal Processing (WCSP) Best Paper Award in 2009. He has served as the TPC member of many conferences such as ICC, Globecom, WCNIS, and ICCC.

Speaker 2: Prof. Tiankui Zhang

Title: Future Green Wireless Networks: Trends and Challenges


Energy-efficiency, one of the major design goals in wireless cellular networks, has received much attention lately, due to increased awareness of environmental and economic issues for network operators. This talk will highlight the trends and challenges of the green networks and green radio, including the background of the green radio/networks and the key ideas on the power saving for wireless networks. Then some works on the wireless networks structure optimization are given in detail.


Prof Tiankui Zhang, associate professor in the Next Generation Communication System Theory and Technology Lab at the School of Information and Communication Engineering of Beijing University of Posts and Telecoms (BUPT). He received his BEng and PhD degrees from BUPT, in the areas of Wireless Telecommunications in the years 2003 and 2008 respectively. His research field is in the areas of future wireless networks with particular focus on radio resource management and green radio.

Date: 30th  January, 2013.

Time: 14.00-15.00 hrs

Venue:  QMUL Maths:1.03

2013 Jan 30- Prof.Changchuan Yin & Prof. Tiankui Zhang