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This paper proposes a battery life time extension method using selective data reception on smartphone according to the battery states of a smartphone. In proposed method, the battery state information of a smartphone is transmitted to the corresponding application server with keep-alive signaling or initial signaling message. The SNS application server determines whether the received data transmits...
Home gateway is in always-on state whether traffic flows or not and thus a waste of power is caused in case that any traffic does not flow. This paper proposes HGESM (Home Gateway Energy Saving Mechanism) which reduces energy consumption in home gateway. The proposed HGESM supports energy saving by switching or keeping processor mode according to the type of service (real time or non-real time service)...
In this paper, we propose the network traffic mitigation method using TCP signalling delay algorithm. By using proposed method, the TCP signalling response time is adjusted according to network traffic load status. Through the queuing analysis, we verify that the network traffic load can be mitigated.
In this paper, we propose an optimal viewable area searching method for supporting user mobility using Received Signal Strength Indicator (RSSI) values. In order to search an optimal viewable area, the home multimedia system determines a viewable area of each terminal based on viewable angle and viewable distance. We implement an optimal viewable area searching system which includes the mobile station,...
This paper proposes a method on reducing processing time of the incoming packets using the signature matching in a router. According to the proposed method, the router has enhanced processing time using signature matching of necessary portion and referring of pre-investigated packet routing table. As a result, this method provides improved quality for real-time traffic such as VoIP and video streaming/conferencing.
In this paper, we propose QoE assessment model for video streaming service such as IPTV and VoD using QoS parameters in wired-wireless network. Existing perceptual quality assessment models are unsuitable for experienced quality assessment of a streaming service which passed through the IP-based network because they only take account of the characteristic of used codec and bit rate. However, QoS parameters...
We propose the delay-guaranteed mechanism for providing real-time service in integrated architecture of EPON and WiMAX. For guaranteeing delay, when the value of delay related to the received real-time service exceeds the recommended value, the SS accesses adjacent different ONU-BS and receives real-time service via multi-path using both network interfaces. By using proposed mechanism, real-time service...
We propose a scheme for secure information networking on RFID system. We investigate a study on network agent function to give IP address at RFID tag and present a mechanism for secure information transmission.
In this paper, we propose seamless handover scheme between heterogeneous networks by using a method which determines best target access network which can support required QoS in case of insufficient resource status of specific access network.
We propose enhanced agent based user mobility support mechanism in RFID networking environment. Although there is an existing study for providing user mobility, it has a problem which the handover latency time is long. To solve this problem, we present a scheme for minimizing handover latency time and compare handover latency time of existing and proposed scheme. We confirm that proposed mechanism...
In ubiquitous network environment, mobility is supported among various networks. When a user enjoying the media streaming service changes his attachment point, the service need to be provided continuously. In this paper, we propose a mechanism to provide seamless mobility for a user using RFID tag. We build a test bed for user mobility, and confirm that the seamless service can be provided according...
In ubiquitous network environment, mobility is supported among various networks. When a user enjoying the media streaming service changes his attachment point, the service needs to be provided continuously. We propose a mechanism to provide seamless mobility for a user using RFID tag. We build a test bed for user mobility, and confirm that the seamless service can be provided according to the user...
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