NDLI: A recursive overlay multicast algorithm for distribution of audio streams in networked games

Content Provider	IEEE Xplore Digital Library
Author	Dowlatshahi, M. Safaei, F.
Copyright Year	2004
Description	Author affiliation: Smart Internet Technol. CRC, Wollongong Univ., NSW, Australia (Dowlatshahi, M.; Safaei, F.)
Abstract	This paper aims to provide a fast multicast algorithm among a set of distributed proxies to enable the creation of realistic audio for networked games. We assume that each proxy is responsible for a group of clients. The proxy receives the audio packets from its clients and multicasts this audio to every other proxy that requires this audio for any of its attached clients. In crowded virtual environments, the number of multicast trees could be quite large and these undergoes continuous change as the avatars move in and out of each others hearing range. To reduce the effect of overhead traffic caused by a large number of unicast flows, we propose the use of (i) coordinate-based clustering of the servers to reduce the number of packet replications required at each server; and (ii) a recursive multicast tree construction with minimal control overhead and reconfiguration complexity. We present simulation results for a crowded networked environment and evaluate the effectiveness of our algorithm in terms of path delay in comparison with the shortest unicast delay paths.
Starting Page	689
Ending Page	693
File Size	370149
Page Count	5
File Format	PDF
ISBN	078038783X
ISSN	15312216
DOI	10.1109/ICON.2004.1409263
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-19
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multicast algorithms Streaming media Unicast Network servers Delay effects Virtual environment Avatars Auditory system Traffic control Clustering algorithms
Content Type	Text
Resource Type	Article

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