Han-Seok Kim

TL;DR: Five 5G-enabled IoT gateways are developed to communicate with the RRHs of 5G C-RAN to significantly improve uplink resource utilization and point out a huge opportunity for supporting a massive number of IoT-enabled devices by sophisticated 5RAN deployment and efficient IoT gateway development.

TL;DR: This paper identifies the complexity of the optimal traffic awareness in 5G C-RAN and design a framework for traffic-aware energy optimization and demonstrates that this framework results in almost 25% daily energy savings and 35% increased energy efficiency with a negligible overhead.

TL;DR: In this article, an available buffer space determiner sets a threshold for each service class for scheduling packet input/output of the buffer according to priority of a service class, estimates and stores, upon receipt of a packet at the buffer, an available space size of buffer after the packet reception, compares the estimated available buffer size with a first threshold corresponding to a first service class indicative of the packet.

TL;DR: This paper proposes an efficient planning of 5G small cells, with evolved multimedia broadcast and multicast communication, between aggregators (small cells) and SG consumers, for efficient demand-response (DR) programs, based on dynamic programming (DP) and greedy heuristics.

TL;DR: In this article, a method for transmitting data by a base station in a wireless communication system according to an embodiment of the present invention may comprise the steps of: transmitting a first signal for determining whether a data transmission is possible in an unlicensed frequency band; transmitting a second signal for reserving a data transmissions in the unlicensed spectrum band when the data transmission in the licensed frequency band is possible; and transmitting first data to a terminal through the licensed spectrum band after transmitting the second signal.