Dynamic Adaptive Streaming over HTTP (DASH) is a technology in which the client is served by requesting the next media segments of appropriate quality. The client measures the current available bandwidth on the basis of the data transmission rate of the previous media segments. To obtain the best quality without generating buffering, it is necessary […]
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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
In this paper, we propose contribution-level -based opportunistic flooding for wireless multihop networks that achieves outstanding transmission efficiency and reliability. The predetermined relay node may fail to receive the broadcast packet owing to the inherent instability in wireless networks. On the other hand, our proposed flooding increases reliability by applying the concept of opportunistic routing […]
Jan
Next-generation digital broadcasting system transmits the DASH segment files. Delays and inefficient use of resources are the major challenges in the transmission of DASH segment files in broadcasting systems. Because the size of DASH segment files varies even though the files have the same quality, and broadcasting systems uses the fixed resource. Delay is an […]
Apr
A Wi-Fi broadcasting system is a kind of Mobile-TV system that transmits multimedia content over Wi-Fi networks. The specialty of the system is that it takes advantage of broadcast packets for streaming to be scalable to the number of users. However, the loss rate of broadcast packets is much higher than that of unicast ones […]
Feb
Recently, there has been an increase in user interest in multimedia services, such as VoIP, using mobile stations equipped with the IEEE 802.11 Wireless Local Area Network (WLAN) module in fast moving environments like Vehicle Ad hoc Networks (VANETs). In order to provide mobility and guarantee bandwidth in a wide area, a handoff among access […]
Jan
In this paper we describe an energy efficient protocol for active radio frequency identification (RFID) tags complying with the standard. The energy efficiency is a key requirement for the wider acceptance of the active RFID systems that use battery constrained tags. The existing active RFID protocols try to reduce energy consumption of tags by putting […]
Aug
Hybrid digital multimedia broadcasting (DMB) is a next‐generation mobile TV system that combines broadcasting and wireless communication networks and can provide various high‐quality multimedia services. However, if a system adheres to the current standard of transmitting the DMB content in the form of MPEG2‐TS through wireless networks, it results in a burden on the network […]
May
We propose MBAP (Multi-rate Broadcast Active Probing) technique to get the right measurements for link quality in Wireless Mesh Network (WMN). Most routing protocols for WMN make use of link quality-aware routing metrics, such as ETX(Expected Transmission Count) and ETT(Expected Transmission Time), while the hop count is usually used in MANET (Mobile Ad-hoc NETwork). A […]
May
The Wi-Fi broadcast system using the broadcast packet transmits the multimedia contents to many local mobile users in real time and it must use the FEC technology to recover the broadcast packet loss, because Media Access Control layer retransmission is not supported for broadcast packet loss. Equally adding the redundant packet is not very efficient […]
Feb
We propose MBAP(Multi-rate Broadcast Active Probing) technique to get the right measurements for link quality in Wireless Mesh Network (WMN). Most routing protocols for WMN make use of link quality-aware routing metrics, such as ETX(Expected Transmission Count) and ETT(Expected Transmission Time), while the hop count is usually used in MANET (Mobile Ad-hoc NETwork). A broadcast […]
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