Record Details     « New Search       Brief Record Full Record MARC Record     Bibliographic Data Control Number UPD-00000160356 Date and Time of Latest Transaction 20090716220307.0 General Information 060526s2006 us eng Local Call Number LG 995 2006 C65 A94 Title Statement Adaptive RTP-compatible audio streaming for handheld clients (ARCASH) / Joyce E. Avestro Main Entry - Personal Name Avestro, Joyce E. Cataloging Source DENGII Language Code eng Physical Description xi, 68 leaves General Note Thesis (M.S. Computer Science)--University of the Philippines Diliman Summary, Etc. In developing applications that target more than one platform with varying sizes and capabilities, interoperability is an important issue to consider. To address this, protocols are established and standards are defined. For real-time multimedia streaming, the standard Real-time Transport Protocol (RTP) can be used. Application development libraries for this protocol are readily available for desktop and for more powerful computing systems. However, despite the advancement of mobile technologies and handheld computing device, there is still lack of support for the development of mobile applications that utilize this protocol. To address interoperability in mobile computing systems for this application, specifically handheld computers, an interface between an implementation of a protocol for desktops and the mobile client has to be devised. In this study, a proxy that interfaces Java mobile clients with RTP streaming server is implemented. In addition, bandwidth adaptation is addressed by buffering at the RTP proxy and at the mobile node. In the implementation, RTP is used to transmit data between audio streaming server and the proxy. The audio is then processed at the proxy to a format suitable for transmission over User Datagram Protocol (UDP) or Transmission Control Protocol (TCP). The audio quality is measured via Mean Opinion Score (MOS), a subjective measure. The end-to-end delay is measured as well. The performance of the implementation is also benchmarked with streaming over Hypertext Transfer Protocol (HTTP) to mobile Subject Added Entry - Topical Term Real-time data processing   Data transmission systems   Computer network protocols Collection Category FI   UP Location UP DENG-II LG 995 2006 C65 A94 E2000000158 Room-Use Only E-604T   UP DENG-II LG 995 2006 C65 A94 e200000085g Room-Use Only E2-128TG   UP DENG-II LG 995 2006 C65 A94 E2000000158 Room-Use Only E-604T   UP DENG-II LG 995 2006 C65 A94 e200000085g Room-Use Only E2-128TG Textual Physical Form Designator Thesis           Physical Location University of the Philippines Diliman: College of Engineering Library II LG 995 2006 C65 / A94           Digital Copy Not Available          Add to Book Cart  |   Download MARC