Controlling Joint Optimization of Wireless Video Transmission: the PHOENIX Basic Demonstration Platform
نویسندگان
چکیده
A global approach for realistic network-aware joint source and channel system optimization for wireless video transmission is described in this paper. After a description of the information to be exchanged among the system component blocks, the concept of “JSCC/D controllers” is introduced and the implementation of the first “basic chain” demonstrator realized in the framework of the PHOENIX project is described. Simulation results obtained with such first software demonstration platform confirm the validity of the described approach.
منابع مشابه
A Demonstration Platform for Network Aware Joint Optimization of Wireless Video Transmission
A software platform for demonstration and performance evaluation of network aware joint optimization of wireless video transmission is presented in this paper. This demonstrator has been realized in the framework of the IST PHOENIX project (www.ist-phoenix.org) and is based on the joint system optimization model developed by the project. After a description of the considered cross-layer approac...
متن کاملA New Unequal Error Protection Technique Based on the Mutual Information of the MPEG-4 Video Frames over Wireless Networks
The performance of video transmission over wireless channels is limited by the channel noise. Thus many error resilience tools have been incorporated into the MPEG-4 video compression method. In addition to these tools, the unequal error protection (UEP) technique has been proposed to protect the different parts in an MPEG-4 video packet with different channel coding rates based on the rate...
متن کاملEvaluation of achieved video quality in wireless multimedia transmission using udplite
The purpose of this paper is to study the performance of the partial checksum mechanism of UDP-Lite transport protocol compared to the standard UDP protocol in wireless environment in terms of achieved video quality. Video quality is evaluated in PSNR using simulation results achieved with a simulation platform developed in the framework of IST PHOENIX project. The platform offers the necessary...
متن کاملOptimization of Energy Consumption in Image Transmission in Wireless Sensor Networks (WSNs) using a Hybrid Method
In wireless sensor networks (WSNs), sensor nodes have limited resources with regard to computation, storage, communication bandwidth, and the most important of all, energy supply. In addition, in many applications of sensor networks, we need to send images to a sink node. Therefore, we have to use methods for sending images in which the number and volume of packets are optim...
متن کاملJoint source-channel coding and power adaptation for energy efficient wireless video communications
We consider efficiently transmitting video over a hybrid wireless/wire-line network by optimally allocating resources across multiple protocol layers. Specifically, we present a framework of joint sourcechannel coding and power adaptation, where error resilient source coding, channel coding, and transmission power adaptation are jointly designed to optimize video quality given constraints on th...
متن کامل