With the advancement of video compression technology and wide deployment of wired/wireless networks, there is an increasing demand of multiuser video communication services. A multiuser video transmission system should consider not only the reconstructed video quality in the individual-user level but also the service objectives among all users on the network level…
Authors: Su, Guan-Ming
Source: University of Maryland
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Contents
1 Introduction
1.1 Motivations
1.2 Related Prior Work
1.3 Thesis Organization and Contributions
2 System Framework
2.1 System Overview
2.2 Wireless Networks
2.3 Video Coding
2.4 Service Objectives
2.5 Design Principles
Introduction
3.2 FGS Rate-Distortion Model and Similarity
3.2.1 Intra-frame Rate-Distortion Model
3.2.2 Similarity in Inter-frame R-D Characteristics
3.3 Low-Delay Bandwidth Resource Allocation for Single User
3.3.1 System Constraints
3.3.2 Criteria for Visual Quality
3.3.3 Problem Formulation
3.3.4 The Proposed Resource Allocation Algorithm
3.4 Low-Delay Bandwidth Resource Allocation for Multiple Users
3.4.1 System Constraints
3.4.2 The Proposed Resource Allocation Algorithm
3.4.3 Diļ¬erentiated Service
3.5 Simulation Results
3.5.1 Simulation Setup
3.5.2 Simulation Results for Single-User Case
3.5.3 Simulation Results for Multiuser Case
3.6 Chapter Summary
4.7 Video over Interference-limited Networks
4.7.1 System Description
4.7.2 Distortion Management Algorithm
4.7.3 Simulation Results
4.8 Chapter Summary
5 End-to-end Video Conferencing
5.1 Introduction
5.2 System Description
5.2.1 IEEE 802.11a
5.2.2 Application Layer FEC
5.2.3 Video over WLAN
5.3 Joint Uplink and Downlink Optimization for Single-Cell Case
5.3.1 Problem Formulation
5.3.2 Proposed Algorithm
5.4 Joint Uplink and Downlink Optimization for Multi-Cell Case
5.4.1 System Framework
5.4.2 Problem Formulation
5.4.3 Proposed Algorithm
5.5 Simulation Results
5.5.1 Simulation Setup
vi5.5.2 Performance Criteria
5.5.3 Single-Cell Case
5.5.4 Multiple-Cell Case
5.6 Chapter Summary
6 PDMA-Based Error Protection
6.1 Introduction
6.2 Multi-Source Multi-Path Transmission
6.2.1 System Overview
6.2.2 Cross-Path FEC for TDMA and PDMA Scheme
6.3 PDMA Error Protection for Video System
6.3.1 Multi-Stream Video System
6.3.2 Problem Formulation
6.3.3 Proposed Algorithm
6.3.4 Heterogeneous Channel Conditions Along Each Path
6.4 Simulation Results
6.4.1 Simulation Setup
6.4.2 Performance of Homogeneous Channel Conditions
6.4.3 Performance of Heterogeneous Channel Conditions
6.5 Chapter Summary
7 Conclusions and Perspectives
A Proofs and Review
A.1 The Impact of Budget Factor on Perceptual Quality
A.2 Review of An Alternative Sliding-Window Algorithm
A.3 Performance Gain for PDMA over TDMA
A.4 Problem Formulation of TDMA-CP
Bibliography