Coordinated Handover Initiation and Cross-Layer Adaptation for Mobile Multimedia Systems

A cross-layer mechanism to improve the performance of real-time applications over IEEE 802.16e metropolitan area networks is presented. The proposed mechanism uses channel quality and service quality information from the physical and medium access control layers, respectively, to determine the most...

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Bibliographic Details
Published in:IEEE transactions on multimedia 2009-10, Vol.11 (6), p.1131-1139
Main Authors: Triantafyllopoulou, D., Passas, N., Kaloxylos, A., Merakos, L.
Format: Article
Language:English
Subjects:
Access control
Adaptive control
Burst profile
Bursting
Channels
Cross layer design
encoding rate
handover initiation
Joints
Media Access Protocol
Metropolitan area networks
Multimedia
Multimedia systems
Performance enhancement
Physical layer
Power consumption
Power control
Programmable control
Quality of service
Real time systems
Simulation
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Description
Summary:A cross-layer mechanism to improve the performance of real-time applications over IEEE 802.16e metropolitan area networks is presented. The proposed mechanism uses channel quality and service quality information from the physical and medium access control layers, respectively, to determine the most suitable burst profile, transmission power level and media encoding rate for a connection, or even initialize a handover execution. The main contribution of this mechanism is the integration of the handover initiation into the cross layer logic, aiming to improve the overall system performance. Extensive simulation results show that the proposed mechanism offers significant performance improvement in terms of packet loss rate, power consumption, throughput, and system capacity.
ISSN:1520-9210
1941-0077
DOI:10.1109/TMM.2009.2026098