TCP versus UDP for Media Synchronization in PHS Internet Access

Shuji TASAKA  Masami KATO  Kotaro NAKAMURA  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.3   pp.713-720
Publication Date: 2000/03/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Mobile Communication
PHS,  media synchronization,  Internet,  TCP,  UDP,  

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A performance comparison between TCP and UDP in PHS Internet access is made by experiment from a media synchronization point of view. We consider a situation where PHS mobile terminals access H. 263 video and G. 726 audio stored at a media server by a streaming method. PIAFS is adopted as the data link protocol for the PHS wireless channels. We examined how white noise and Rayleigh fading on the PHS channel as well as the Internet traffic affect the performance. For the comparison, we evaluated several performance measures such as the coefficient of variation of output interval, and found that UDP outperforms TCP in almost all cases.