Yuhwa Suh

A study on impact of wired access networks for green Internet

The energy consumption of data network equipment used for the Internet is generally unknown, although such equipment is known to use a substantial amount of energy. In addition, there is a lack of related studies with a special focus on wired networking. This paper aims at analyzing the impact of wired access networks in data network for greening the Internet, and encouraging further research in this field by clearly presenting the significance and reasonability of this endeavor. For this work, we first introduce the background and motivation of green networking. Next, we survey the existing works and describe reasonability of our approach, and then we estimate the overall energy consumption of wired access networks by which the energy consumption of data network is driven, calculate CO2 emissions and economic costs from the energy consumption and explore savings potential of them. Going a step, we analyze the impact of energy consumption, economy, and environment from the use of wired access network equipment depending on IP traffic types. Finally, we present a new viewpoint on energy efficiency focusing on the quality-of-service with future works related to this issue. HighlightsWe estimate the overall real energy consumption, CO2 emissions and economic costs of wired access networks by network modeling.We explore energy savings potential of wired access networks.We analyze the impact of energy consumption, economy, and environment on IP traffic types.

A study on energy savings potential of data network equipment for a green Internet

A green Internet is becoming a major concern recently. The main concept of it is to improve energy efficiency in the Internet for reduction of unnecessary energy consumption. Generally, energy consumption of data network equipment in the Internet is unknown although they use a substantial amount of energy. In this area, there is a lack of deeper related studies with a special focus on wired networking and it still remains to be many challenges. This paper aims at exploring an impact of data network equipment for greening the Internet. We first introduce backgrounds and motivations of green networking on aspect of energy consumption. Secondly, we estimate energy consumption and energy savings potential of data network equipment in detail. Thirdly, we assess impacts of it based on IP traffic type and propose new viewpoint on energy efficiency focused on the QoS. Lastly, we propose the future works for green networking from the perspective of QoS.

OTT user authentication system by age classification

The number and types of channels and programs that viewers can choose have been explosively increased since the digital broadcasting service was provided to almost every household while the ground wave broadcastings have been stayed. Since sexual, violent, and antisocial contents have been rapidly it increased to competition broadcasting. The primary goal of this study is to develop a system to restrict viewing of adolescents for improper broadcasting linking with the contents DB system inside OTT device. For the purpose an algorithm to detect the age of viewers of OTT broadcasting is proposed.

Greening potential estimation of data network equipment

Green Internet is becoming a major concern recently. The main concept of it is to improve energy efficiency in the Internet for reduction of unnecessary energy consumption. Generally, energy consumption of data network equipment in the Internet is unknown although they use a substantial amount of energy. In this area, there is a lack of deeper related studies with a special focus on wired networking and it still remains to be many challenges. This paper aims at exploring an impact of data network equipment for greening the Internet. We first introduce backgrounds and motivations of green networking. Secondly, we estimate energy consumption, costs, and energy savings potential of data network equipment in detail. Thirdly, we assess impacts of it based on IP traffic type and propose new viewpoint on energy efficiency focused on the quality of service (QoS). Lastly, we propose the future works for green networking from the perspective of QoS.

A study of energy consumption and savings potential in wired network equipment

As the Internet has grown, energy consumption and GHG emission from internet use have become issues in recent years. On the other hand, such interest in greening the Internet has focused on edge devices, and there is a lack of deeper related studies of the energy wasted by excessive network-connectivity and the savings potential in wired network equipment. This study presents the background and reasonability of studies on the energy efficiency of wired networks in terms of the environment, economy and energy resources. The energy consumption and savings potential of network equipment were also estimated and the major factors of energy consumption was analyzed based on the data, and future studies for the Internet are presented.

Data Diffusion Considering Target Mobility in Large-Scale Wireless Sensor Network

In this paper, we propose DDTM, Data Diffusion considering Target Mobility for large-scale WSN. Most of existing routing protocols did not consider mobile target and sink. So it requires frequently flooding and path update whenever targets or sinks move. This can lead to drain battery of sensors excessively and decrease lifetime of WSN. We proposed DDTM for Target Mobility. DDTM decreases a consumption of energy as reusing the existing grid structure of existing routing protocol TTDD, when the target moves in local cell. We evaluate performance of DDTM and TTDD in target mobility and scalability through measuring the mathematical cost. Our results show that DDTM supports target mobility efficiently in WSN.