Jihoon Lee

Device mobility management in content-centric networking

Due to rapid developments in mobile technologies as well as various embedded multimedia features, user created mobile contents are on the increase, in terms of both quality and quantity, and at the same time are shared in real time. To keep pace with such trends, a new networking technology called content-centric networking has appeared. However, it does not consider the extra requirements to support device movements. Thus, this article proposes a mobility management scheme for CCN to provide faster service access latency and lower routing overhead.

Game-theoretic resource allocation and decoding order control in OFDMA based multihop networks

It is well known that the information theoretic multiple access channel capacity region is known to be achieved by successive decoding schemes. In this paper, we study a distributed multiple access scheme in OFDMA-based wireless multihop networks. As a solution, we propose a game-theoretic resource allocation and decoding order control scheme, which is based on iterative multi-unit second price auction. The key concept of the proposed scheme is to update the auction value based on the difference between current and target bidding efficiency. We prove our proposals convergence and stability through analysis and show its performance using simulation. It achieves around 80% of the full-search-based sum throughput while providing inter-user and inter-subchannel fairness.