VCG auction based optimal allocation for scalable video communication in 4G WiMAX

We present novel schemes for optimal OFDMA bitrate allocation towards video quality maximization in H.264 scalable video coding (SVC)-based 4G wireless systems. We use the rate and quality models for video characterization of the SVC extension of the H.264/AVC and develop the framework for optimal scalable video transmission. Subsequently, we derive the closed form solution of the optimal H.264 scalable video quantization parameter for sum video quality maximization in unicast and multicast 4G WiMAX adaptive modulation and coding (AMC) scenarios. We also formulate a Vickrey-Clarke-Groves (VCG) auction-based time-frequency (TF) resource pricing scheme for dynamic bitrate allocation and simultaneous prevention of video quality degradation by malicious users for H.264-based scalable video transmission. Simulation results demonstrate that application of the proposed optimal 4G OFDMA schemes for unicast/multicast video quality maximization yield significantly superior performance in comparison to fixed rate video agnostic allocation.

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Cross-Layer Techniques for Reliable Wireless Video Communication

Using Cross-Layer Techniques for Communication Systems ◽

10.4018/978-1-4666-0960-0.ch018 ◽

2012 ◽

pp. 432-459 ◽

Cited By ~ 1

Author(s):

Athar Ali Moinuddin ◽

Mohd Ayyub Khan ◽

Ekram Khan ◽

Mohammed Ghanbari

Keyword(s):

Communication System ◽

Physical Layer ◽

Video Communication ◽

Scalable Video ◽

Cross Layer ◽

Main Theme ◽

Application Layer ◽

Wireless Video ◽

Network Layers ◽

Channel Errors

Designing wireless video communication system is a challenging task due to high error rates of wireless channels, limited and dynamically varying bandwidth availability, and low energy and complexity requirements of portable multimedia devices. Scalable video coders having excellent rate-distortion performance are most suited to cope with time varying bandwidth of wireless networks, but encoded bits are extremely sensitive to channel errors. This chapter presents a reliable video communication system exploring opportunities offered by various network layers for improved overall performance, while optimizing the resources. More specifically, cross-layer approach for Unequal Error Protection (UEP) of scalable video bitstream is the main theme of this chapter. In UEP, the important bits are given a higher protection compared to the other bits. Conventionally, UEP is achieved by using Forward Error Correction (FEC) at the application layer. However, UEP can also be provided at the physical layer using hierarchical modulation scheme. In this chapter, the authors discuss cross-layer design methodology for UEP that rely on interaction between the application layer and the physical layer to achieve reliable and high quality end-to-end performance in wireless environments. The discussion is mainly focused for wavelet coded video, but it is applicable to other embedded bitstreams as well.

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A scalable Video Communication Framework based on D-Bus

2011 International Conference on Electronics, Communications and Control (ICECC) ◽

10.1109/icecc.2011.6066696 ◽

2011 ◽

Cited By ~ 1

Author(s):

Hua Yuan ◽

Zhenhua Sun ◽

Ling Zhang ◽

Hong Yuan

Keyword(s):

Video Communication ◽

Scalable Video ◽

Communication Framework

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