Maximizing network lifetime and optimizing aggregate system utility are important but usually conflict goals in wireless multi-hop networks. For the trade-off particularly for such networks equipped with the capability of network coding, we introduce a cross-layer optimization approach that can seamlessly accommodate routing, scheduling and stream control to simultaneously meet the diverse obje...

In this paper, we propose an alternative design approach for multistandard video decompression systems. The key component of our proposal is a self−contained and extensible meta data format for unified description of image processing and reconstruction operations. Dividing between the syntactic layer of the video coding schemes and the signal processing part, the meta data format offers the opt...

The multimedia broadcast/multicast service (MBMS) originally proposed by UMTS supports the delivery of multimedia streams to a group of mobile subscribers. With the heterogeneity of device capability and the variety of subscriber preference, an MBMS source has to provide multiple levels of service quality to its group members. The provisioning of multi-level MBMS can be achieved by incorporatin...

The work in this paper examines the effects of group of pictures on H.264 multiview video coding bitstream over an erroneous network with different error rates. The study considers analyzing the bitrate performance for different GOP and error rates to see the effects on the quality of the reconstructed multiview video. However, by analyzing the multiview video content it is possible to identify...

Due to multi-layer encoding and Inter-layer prediction, Scalable High Efficiency Video Coding (SHVC) has extremely high coding complexity. It is very crucial improve its speed so as promote widespread cost-effective SHVC applications. In this paper, we propose a new probability-based fast Intra prediction algorithm for spatial SHVC. More specifically, first, integrate depth probabilities with t...

A highly secure scalable compression method for stream cipher encrypted images is described in this journal. The input image first undergoes encryption and then shuffling. This shuffling in the image pixels enhances the security. For shuffling, Henon map is used. There are two layers for the scalable compression namely base layer and enhancement layer. Base layer bits are produced by coding a s...

Multi-antenna two-way relaying, in which two multi-antenna users exchange information via a multiantenna relay, has attracted much research interest recently. How to approach the capacity of a multipleinput multiple-output (MIMO) two-way relay channel (TWRC) remains a challenging issue. In this work, we propose a novel space-division based network-coding scheme for MIMO two-way relaying. In the...