Robust QoS Control System for Mobile Multimedia Communication in IP-Based Cellular Network: Multipath Control and Proactive Control

Akihito OKURA  Takeshi IHARA  Akira MIURA  Masami YABUSAKI  

IEICE TRANSACTIONS on Communications   Vol.E88-B   No.7   pp.2784-2793
Publication Date: 2005/07/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.7.2784
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Mobile Multimedia Communications)
proactive control,  multipath control,  anomaly detection,  attractor,  linear optimization,  linear programming,  

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This paper proposes "Multipath Control and Proactive Control" to realize a robust QoS control system for mobile multimedia communication in an IP-based cellular network. In this network, all kinds of traffic will share the same backbone network. This requires a QoS system that differentiates services according to the required quality. Though DiffServ is thought to be a promising technique for achieving QoS, an effective path control scheme and a technique that is suitable enough for rapid traffic changes are not yet available. Our solution is multipath control using linear optimization combined with proactive control using traffic anomaly detection. Simulation results show that multipath control and proactive control improve system performance in terms of throughput and packet loss when rapid traffic change takes place.