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Recently, mobile social networks in proximity (MSNP) has gained tremendous attentions, which explicitly explores the physical proximity of individuals, and greatly facilitates their face-to-face interactions through direct communications. Generally, Proximity awareness can be enabled with two methodologies: Over-The-Top (OTT), in which the centralized server determines the proximity based on users'...
In this paper, we studied for the transmission of message and voice using CCNx that is one of the Content Centric Network(CCN) projects. CCN is considered as a way to solve the explosive growth of Internet traffic. In order to apply CCN to the common services that are widely used, we developed applications that send message and voice. The application can operate without a separate server by using...
With advancement in Location Based Service and GPS enabled mobile devices, different types of queries to obtain location based information exist in mobile environment. Location based queries or spatial queries are the backbone of Location Based Services. LBS is gaining more popularity in today's world, as they enable the mobile users to obtain location information or location based information. Spatial...
In a cloud computing environment, users prefer to migrate their locally processing workloads onto the cloud where more resources with better performance can be expected. ProtoGENI [1] and PlanetLab [17] have further improved the current Internet-based resource outsourcing by allowing end users to construct a virtual network system through virtualization and programmable networking technologies. However,...
Ubiquitous computing for context aware system collects information from many static and moving devices as well as sensor integrated objects. To provide valuable services, it is necessary to track the location of the users or objects. There are many possible applications that can apply location-assisted service such as child tracking, supermarket trolley alert system, firefighter tracking and many...
This paper describes a solution for implementing the Media Independent Information Service, later referred to as MIIS, described in IEEE 802.21 standard. First we present the previous work towards defining a complete system capable of realizing a vertical handover according to the standard. Next we detail the MIIS general architecture, the information gathering procedures and considerations about...
Economic development and globalization of trade make the cross-region communication more and more frequent. Multimedia conference system supports that individuals or organizations in different places share voice, video and documents to achieve real-time communication. However, the existing multimedia conference terminals lack mobility support. In this paper, we have designed and implemented a Symbian-based...
Recent years have witnessed growing interest in using mobile devices to host services. The move from service consumer to service provider has been enabled by advances in mobile device hardware. Many contemporary devices also come equipped with multihoming, which allows a device to connect to heterogeneous networks, such as GPRS, WiFi and Bluetooth. To help leverage these new capabilities, we have...
Although the landscape of mobile devices is continuously evolving towards more powerful terminals, the limitations regarding processing power, memory capacity and speed, network connection and battery, are still present and at certain loads fail to satisfy the requirements of complex applications. Being always connected to the network offers a solution to this problem as the server infrastructure...
This paper presents new embedded system architecture (ESA) for improving the voice quality in a WLAN/Cellular dual-mode mobile phone. The proposed architecture is based on a dual-core scheme and its main functional blocks are composed of VoIP Remote Procedure Call (VRPC), an audio bridging scheme, and a Server-Assisted Call Management (SACM) algorithm. In order to illustrate the aims of the proposed...
Transmission through short-range and short-term connected pocket switched Networks (PSN) would become more and more popular. In this paper, we study how a mobile wireless device achieves anonymous broadcasting in PSN. We split an original message into many segments and broadcast them at different times. These segments will be received, saved in buffer and forwarded by other devices with time delay...
Nowadays, the backbone network is capable of delivering countless information at extremely high performance and high throughput. However, the abundant information in the backbone may not be retrieved by the mobile users' fingertips. This paper developed the parallel channels content delivery and concurrent retrieval mechanisms so as to support timely and reliable access to the multicasting information...
We present a new system model based on DLNA 2- box models. The proposed system supports pull-type and push- type streaming of AV content on the same device platform, which is not directly supported by DLNA currently. This system also provides a streaming-conflict avoiding mechanism and a dynamic pull-push switching mechanism.
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