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INTRODUCTION

NETWORK AWARE QUALITY ADAPTATION

SCHEME

SIMULATION PLATFORM

CONCLUSION

REFERENCES

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1. DEVICE COLLABORATION SERVICES

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2. AVAILABLE BANDWIDTH MEASUREMENT

Packet pair probing method

Packet train probing method

3. SVC (Scalable Video Coding)

The scalable extension of H.264

A typical SVC stream includes one base layer and one or

several enhancement layers

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1.ARCHITECTURE

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2. AVAILABLE BANDWIDTH ESTIMATION

APT (Adaptive Packet Train)probe scheme

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3. Media Quality Adaptation

“Users are usually more sensitive to the rapid quality variation than quality

degradation”.

Adaptive layer distribution method

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Network-adaptive IDR period method

The frequency of IDR period is adjusted adaptively according to

the level of the network congestion

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Network-adaptive Layer Distribution Controls PSEUDO CODE

01 Calculating Available Bandwidth (Bs) 02 CLevel = Bc-Bs03 IF (CLevel ≤ minth )04 IDR Period = Pmax05 ELSE IF (minth < CLevel < maxth )06 IDR Period = Pcurrent07 ELSE IF (CLevel ≥ maxth)08 IDR Period = Pmin

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NS2 (Network Simulator)

JSVM (Joint Scalable Video Model) software was used

for encoding video clip in SVC format

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Provide seamless and high quality video streaming in

the home network.

When the performance criteria of PSNR and FER were

taken into consideration it proved to be better than

Pathload Scheme PathChirp Scheme

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[1] H. Yoon and J. Kim, “Collaborative streaming-based media content sharing in WiFi-enabled home networks,” IEEE Transactions on Consumer Electronics, vol. 56, issue 4, pp. 2193-2200, November 2010.

[2] D. Kim and K. Chung, “Media quality control scheme for device collaboration in home networks,” Proc. of International Conference on Consumer Electronics, pp. 343-344, January 2011.

[3] T. Hwang, H. Park, E. Park, and J. Chung, “EAFR-based DLNA proxy for high-quality video distribution in extended home,” IEEE Transactions on Consumer Electronics, vol. 57, issue 1, pp. 120-125, February 2011.

[4] M. Ghareeb, A. Ksentini, and C. Viho, “An adaptive QoE-based multipath video streaming algorithm for scalable video coding,” Proc.of IEEE Symposium on Computers and Communications, pp. 824-829, July 2011.

[5] T. Wiegand, G Sullivan, J. Reichel, and M. Wien, Joint draft 9 of SVC amendment, JVT-V201, January 2007.

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