The Wi-Fi broadcasting system with its advantage of short installation time, low installation cost and broadband service, has expanded the availability throughout the places where sending large amount of multimedia data simultaneously to the majority of users is required such as classroom, stadium and meeting room. The Wi-Fi broadcasting system is composed of broadcasting server, […]
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Intelligence Networking & Computing Lab, Busan, Rep. of Korea
We approach our projects with strategic and creative thinking. We partner with our clients to create big ideas and digital experiences.
Jan
Jan
The oneM2M is a partnership project aimed at developing the technical specification of global service platform for the Internet of Things (IoT). The project deals with various parts, but WG3(: WG PRO)in particular, defines the exchanging message protocol between the entities(oneM2M Primitive), oneM2M core protocol to handle errors and bindings between core protocol and transport […]
Nov
In this paper, we propose a Logical Location Map to solve the problem of decreased accuracy of indoor physical location in the indoor environment. A lot of studies have been performed to reduce the indoor physical location errors. However, location errors still occur with changing environment, more research is needed. This paper aims to obtain […]
Aug
Wi-Fi broadcasting system is to offer multimedia streaming of the same quality to users even with increasing numbers of users by using broadcasting packet, not Unicast packet. However, the broadcast packet has high packet loss rate because it has not retransmission Medium Access Control (MAC) to recover the packet loss. Therefore, to prevent service quality […]
Aug
This paper analyzes delays and resource efficiency when DASH segment files are transmitted through IP-based next-generation broadcasting systems such as ATSC 3.0. DASH segment files are designed to support media content of various qualities in the DASH system. The size of a DASH segment file can vary even though they may have the same quality […]
May
Delay‐ or Disruption‐Tolerant Networking (DTN) is a communications approach that is utilized in easily disrupted or delayed networks. Examples of such networks are often found in heterogeneous networks, mobile or extreme terrestrial networks, and planned networks in space. In this paper, we examine the metropolitan bus network as a research target of DTN for a […]
Apr
The wireless resources required by users have increased in parallel with and above improvements in WLAN technology, requiring even more accurate and practical resource management. Research on medium utilization, which is fundamental to resource management, has supplied insufficient evidence to apply it in real environments. This paper proposes a hybrid measurement approach to medium utilization […]
Apr
This paper proposes a hierarchical error recovery method for the hybrid mobile broadcast/communication networks. The mobile broadcast network (e.g., DVB-T/H, T-DMB) transmits the base forward error correction (FEC) and the multimedia content at the same time for the error recovery. However, the occurrence of errors is different due to the receiving environment of the individual […]
Feb
This paper proposes the method through the mobilecommunicationnetwork when broadcast contents occur receiving errors in the Hybrid Broadcast/Mobile Network. Generally, the characteristic of the mobilecommunicationnetwork is pay network and peer-to-peer mobile. Therefore, it is necessary to reduce the amount of retransmission data in order to reduce the load of users and networks for recovery. This […]
Feb
The Wi-Fi based broadcasting system is mobile Internet Protocol Television(IPTV) technology, which transmits the multimedia content to a lot of local mobile users in real time. Unlike conventional Wi-Fi based multimedia streaming systems that use a separate unicast packets to serve each user, the Wi-Fi broadcast system uses the broadcast packets for scalability because one […]
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