R-letter of August 2013 - IEEE Communications Society

IEEE COMSOC MMTC R-Letterallocation through flexible video processing at therelay node.The numerical results also show that excessivepower consumption by either the source or relaynode will not improve the distortion performancesignificantly. The power allocation between thesource and relay nodes needs to be optimized toachieve a remarkable performance gain with theproposed DPF scheme.In conclusion, the proposed DPF scheme canachieve a significant improvement in terms of thereceived video quality, as compared with existingcooperative transmission schemes in the literature.References:[1] Z. Li, et al., “Video summarization forenergy efficient wireless streaming,” Proc.SPIE Visual Commun. and Image Processing,Beijing, China, 2005.[2] P. V. Pahalawatta, et al., “Rate-distortionoptimized video summary generation andtransmission over packet lossy networks,”Proc. SPIE Image and Video Commun. andProcessing, San Jose, CA, 2005.[3] D. Wu, S. Ci and H. Wang, “Cross-layeroptimization for video summary transmissionover wireless networks,” IEEE JSAC, vol. 25,no. 4, pp. 841-850, May 2007.[4] D. Wu, et al., “Quality-driven optimizationfor content-aware real-time video streamingin wireless mesh networks,” Proc. IEEEGlobeCom, New Orleans, LA, Dec. 2008.[5] G. M. Schuster and A. K. Katsaggelos, Rate-Distortion Based Video Compression:Optimal Video Frame Compression andObject Boundary Encoding, Kluwer, 1997.Xiaoli Chu is a Lecturer inthe Department ofElectronic and ElectricalEngineering at theUniversity of Sheffield, UK.She received the B.Eng.degree in Electronic andInformation Engineeringfrom Xi’an Jiao TongUniversity, China, in 2001,and the Ph.D. degree in Electrical and ElectronicEngineering from the Hong Kong University ofScience and Technology in 2005. From Sep. 2005 toApr. 2012, she was with the Centre forTelecommunications Research at King’s CollegeLondon. Her current research interests includeheterogeneous networks, cooperative communications,cognitive communications, and green radios. She haspublished more than 60 peer-reviewed journal andconference papers. She is the leading editor/author ofthe Cambridge University Press book, HeterogeneousCellular Networks, May 2013. She was a guest editorof the Special Issue on Cooperative FemtocellNetworks (Oct. 2012) for ACM/Springer Journal ofMobile Networks & Applications, and is a guest editorof the Special Section on Green Mobile MultimediaCommunications (Apr. 2014) for IEEE Transactionson Vehicular Technology.http://committees.comsoc.org/mmc 20/22 Vol.4, No.4, August 2013