Optimized wireless video transmission using classification

— Cross protocol layer optimizations have been recently proposed for improving the performance of realtime video transmission over 802.11 WLANs. However, performing such cross-layer optimizations is difficult since the video data and channel characteristics are time-varying, and analytically deriving the relationships between quality and channel characteristics given delay and power constraints is difficult. Furthermore, these relationships are often non-linear and non-deterministic (only worst or average case values can be determined). Complex Lagrangian or multi-objective optimization problems are thus often faced. In this paper, we propose a novel framework for solving cross MAC-application layer optimization problems. More specifically, we employ classification techniques to find an optimized cross-layer strategy for wireless multimedia transmission. Our solution deploys both content- and channel-related features to select a joint application-MAC strategy from the different strat...

• Type: Conference
• Year: 2005
• Where: ICMCS
• Authors: Raymond S. Wong, Mihaela van der Schaar, Deepak S. Turaga
• Keywords: Channel Characteristics, ICMCS 2005, Layer Optimization, Optimization Problems