Joint Source-Channel Coding for Real-Time Video Transmission to Multi-homed Mobile Terminals

TL;DR

This paper introduces PA-JSCC, a novel joint source-channel coding method for real-time video transmission over multi-homed wireless networks, improving video quality through path adaptation and dynamic rate allocation.

Contribution

It proposes a new Path Adaption JSCC approach that addresses multi-path transmission challenges in heterogeneous wireless networks.

Findings

PA-JSCC achieves higher PSNR in evaluations.

The method effectively adapts to varying network conditions.

Experimental results validate its performance improvements.

Abstract

This study focuses on the mobile video delivery from a video server to a multi-homed client with a network of heterogeneous wireless. Joint Source-Channel Coding is effectively used to transmit video over bandwidth-limited, noisy wireless networks. But most existing JSCC methods only consider single path video transmission of the server and the client network. The problem will become more complicated when consider multi-path video transmission, because involving low-bandwidth, high-drop-rate or high-latency wireless network will only reduce the video quality. To solve this critical problem, we propose a novel Path Adaption JSCC (PA-JSCC) method that contain below characters: (1) path adaption, and (2) dynamic rate allocation. We use Exata to evaluate the performance of PA-JSCC and Experiment show that PA-JSCC has a good results in terms of PSNR (Peak Signal-to-Noise Ratio).