Cross-layer wireless multimedia transmission: challenges, principles, and new paradigms
IEEE Wireless Communications
Cross-layer design for wireless networks
IEEE Communications Magazine
Application-driven cross-layer optimization for video streaming over wireless networks
IEEE Communications Magazine
Performance Analysis of Packet Aggregation in WLANs with Simultaneous Multi-user Access
NETWORKING '09 Proceedings of the 8th International IFIP-TC 6 Networking Conference
Multiuser resource allocation maximizing the perceived quality
EURASIP Journal on Wireless Communications and Networking - Special issue on OFDMA architectures, protocols, and applications
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This paper proposes a cross-layer optimization framework that provides efficient allocation of wireless network resources across multiple types of applications to maximize network capacity and user satisfaction. We define a novel optimization scheme based on the Mean Opinion Score (MOS) as the unifying metric. Our experiments, applied to scenarios where users simultaneously run three types of applications, such as realtime voice, video conferencing and file download, confirm that MOS-based optimization leads to significant improvement in terms of user perceived quality when compared to throughput-based optimization.