Joint Friday Seminar: “The future of radio resource management in cellular networks”

Friday Seminar
Date and time: May 08, 2015 13.30 - 16.00
Place: Wireless@kth/EIT ICT Labs co-location centre, Isafjordsgatan 26, Electrum building, Floor 3, elevator C
Speaker: Seong-Lyun Kim and Kwang Soon Kim

On Friday 8th of May. Wireless@ kth is happy to have two visiting researchers giving seminars during the afternoon! The event will start at 13.30 and end at 16.00. There will be a coffeebreak between the two seminars. Coffee and sweets will be served!

You can also attend the seminars through Adobe Connect. Follow this link to attend:

Most welcome!

Seminar 1. “Viability of Reverse Pricing in Cellular Networks: A New Outlook on Resource Management”


Speaker: Seong-Lyun Kim

Since Kelly’s seminal work , pricing has been recognized as an effective tool for the design and control of wireless networks. However, considerable mismatches between “theory” and “practice” have been observed in reality. The potential reason behind these gaps is that the high spatio-temporal user demand uncertainty is largely ignored in the existing study. For example, the network demand in peak hours can be ten times more than that in off-peak hours. In this talk, I will introduce “reverse pricing” that has been recognized as an effective tool to handle demand uncertainty in the travel industry. To investigate its viability in cellular networks, we design the reverse pricing mechanism to resolve the demand uncertainty effectively. Compared to (operator-driven) time-dependent pricing, we show that the proposed pricing scheme can achieve “triple-win” solutions: an increase in the total revenue of the operator; higher resource utilization efficiency; and an increment in the total payoff of the users. Our findings provide a new outlook on resource management, and design guidelines for adopting the reverse pricing scheme. This is a joint work with Sang Yeob Jung.

Seong-Lyun Kim is a Professor of wireless networks at the School of Electrical & Electronic Engineering, Yonsei University, Seoul, Korea, heading the Radio Resource Management & Optimization  (RAMO) Laboratory and the Center for Flexible Radio (CFR+). He was an Assistant Professor of Radio Communication Systems at the Department of Signals, Sensors & Systems, Royal Institute of Technology (KTH), Stockholm, Sweden. He was a Visiting Professor at the Control Group, Helsinki University of Technology  (now Aalto), Finland, and the KTH Center for Wireless Systems. He served as a technical committee member or a chair for various conferences, and an editorial board member of IEEE Transactions on Vehicular Technology, IEEE Communications Letters, Elsevier Control Engineering Practice and Journal of Communications and Network. He recently served as the leading guest editor of IEEE Wireless Communications, and IEEE Network for wireless communications in networked robotics. He also consulted various companies in the area of wireless systems both in Korea and abroad. His research interest includes radio resource management and information theory in wireless networks, economics of wireless systems, and robotic networks. He published numerous papers, including the co-authored book (with Prof. Jens Zander), Radio Resource Management for Wireless Networks. His degrees include BS in economics (Seoul National University), and MS & PhD in operations research (with application to wireless networks, Korea Advanced Institute of Science & Technology).

Seong-Lyun Kim







Seong-Lyun Kim


Seminar 2. “Distributed and Joint Association for Clustered Small Cell Networks”


Speaker: Kwang Soon Kim

Deploying of small-cell BSs on existing macro-cell BSs, called an HCN, can be an attractive solution for cost-effectively handling the exponentially growing data-traffic demand. In an HCN, in order to provide better quality of service to users, an appropriate load balancing scheme with a cross-tier interference mitigation is required. In this talk, some analytical framework using stochastic geometry for the link quality and the load distributions for an HCN as well as distributed and joint association and load balancing schemes are introduced. Also, the smart small cell project in Yonsei and the joint association scheme using hybrid beamforming are introduced with some prototyping examples.

Kwang Soon Kim, Associate Professor of Dept. EE, Yonsei University. Dr. Kim served as an Editor of the Journal of the Korean Institute of Communications and Information Sciences (KICS) from 2006–2012 and has been its Editor-in-Chief since 2013. He has also been an Editor of the Journal of Communications and Networks since 2008 and of the IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS since 2009. He received the Outstanding Researcher Award from Electronics and Telecommunication Research Institute in 2002, the Jack Neubauer Memorial Award (Best System Paper Award, IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY) from the IEEE Vehicular Technology Society in 2008, and the LG R&D Award: Industry-Academic Cooperation Prize from LG Electronics in 2013. His research interests include signal processing, communication theory, information theory, and stochastic geometry applied to wireless heterogeneous cellular networks, wireless local area networks, wireless device-to-device networks, and wireless ad hoc networks.

Kwang Soon Kim crop






Kwang Soon Kim



The seminars are partly supported by NRF of Korea and STINT of Sweden via the project “Agile radio renounce management for 5G wireless systems in shared spectrum”.

See slides from the seminars here!


Seminar 1. “Viability of Reverse Pricing in Cellular Networks: A New Outlook on Resource Management”


Seminar 2. “Distributed and Joint Association for Clustered Small Cell Networks”


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