Báo cáo hóa học: " Cross-Layer QoS Control for Video Communications over Wireless Ad Hoc Networks" docx

... length EURASIP Journal on Wireless Communications and Networking 2005:5, 743–756 c  2005 Qi Qu et al. Cross-Layer QoS Control for Video Communications over Wireless Ad Hoc Networks Qi Qu, 1,2 Yong ... protection, many packets are lost due to late arrivals. Cross-Layer QoS Control for Video over Ad Hoc Networks 745 RTP-H.264 packet video delivery ove...

Ngày tải lên: 23/06/2014, 00:20

... content over hybrid wired /wireless ad hoc networks and the design of innovative radio access schemes. Details of the API allowing high- fidelity simulations by transmitting bits and bytes over the radio ... Journal on Wireless Communications and Networking 7 FreeSpacePathLoss InterfererNoiseInfo NoiseInfo ReceiverNoise RcmModule FastFading FastFadingInfo RadioChannelManager SlowF...

Ngày tải lên: 21/06/2014, 23:20

... (I-EPD) for real-time video streaming over a multihop wireless ad hoc network. In a multihop wireless ad hoc network, the quality of transferring real-time video streams could be seriously degraded, ... intelligently on IN for improving the quality of video streams over multi-hop wireless ad hoc networks. Previous works on improving the quality of video strea...

Ngày tải lên: 21/06/2014, 23:20

... multi- level adaptive scheme for video communications over wireless channels Husameldin Mukhtar 1 , Mohamed Hassan 2* and Taha Landolsi 2 Abstract Video streaming over wireless channels is challenged ... streaming over wireless networks. in IEEE Global Telecommunications Conference, GLOBECOM’05. 6 (2005) 5. H Chuang, C Huang, T Chiang, Content-aware adaptive media playout...

Ngày tải lên: 20/06/2014, 21:20

... concealment for video. In Section 3, we briefly describe the channel models used and provide the performance analysis for the coded and uncoded systems employing nonuniform MPSK over Rician slow-fading ... 12 pages doi:10.1155/2007/86915 Research Article Cross-Layer Design for Video Transmission over Wireless Rician Slow-Fading Channels Using an Adaptive Multiresolution Modul...

Ngày tải lên: 22/06/2014, 19:20

... performance metrics to evaluate it. They are network control overhead, QoS redundancy, and QoS bal- ance effect. QoS Routing by Cross-Layer Cooperation in Ad Hoc Networks 669 7 6 5 4 3 2 1 0 Control ... bandwidth-aware (BAR) QoS routing. Another part is for evaluating integrated per- formance of the scheme through defining three performance metrics (network control overhea...

Ngày tải lên: 23/06/2014, 00:20

... “Stochastic rate -control of video coders for wireless channels,” IEEE Trans. Circuits and Systems for Video Technology, vol. 12, no. 6, pp. 496–510, 2002. FGRS for Video Streaming over Wireless Networks ... dif- ferent segments of the video bitstream. FGRS for Video Streaming over Wireless Networks 185 (a) (b) (c) Figure 17: Test video sequences in CIF: (a) Aki...

Ngày tải lên: 23/06/2014, 01:20

... and two enhancement la y ers Figure 2 The video quality for the MSS under various numbers of video layers (the video, foreman, is downloaded from the video trace library [27]). (a) Only one base ... 2 l 1 l 2 l m Video Stream l 1 l 2 l k Video Server Internet Figure 1 The video multicast network environment over IEEE 802.16e networks. Tsai et al. EURASIP Journal on Wire...

Ngày tải lên: 21/06/2014, 02:20

... exploration, and so forth. On the other hand, the locations of nodes are random, which makesitmoredifficult to analyze the performance of wire- less ad hoc networks. Generally, wireless ad hoc networks ... analyzing the wireless ad hoc network, especiallywhenitstopologyisrandom. It is obvious that the distance d(s, t)betweennodess and t in the wireless ad hoc network is of...

Ngày tải lên: 22/06/2014, 22:20

... severely in IEEE 802.11-basedwirelessadhoc networks. We first identify two critical issues leading to the TCP performance degradation: (1) unreliable broadcast, since broadcast frames are transmitted ... UWB wireless communications systems, wireless security, and ad hoc and sensor networks. He is a coauthor of two books, and has published more than 200 papers and book chapters in wi...

Ngày tải lên: 22/06/2014, 22:20