TCP-Oriented Raptor Coding for High-Frame-Rate Video Transmission Over Wireless Networks

Abstract

High-Frame-Rate (HFR) video technology is becoming widely implemented in popular multimedia applications (e.g., Youtube and cloud gaming) to provide smooth viewing experience. Meanwhile, Transmission Control Protocol (TCP) is pervasively adopted as the transport-layer solution for video communications to achieve firewall traversal and network-friendliness. However, it is severely challenging to effectively deliver real-time HFR video over TCP: 1) HFR video streaming is featured by high transmission rate, enhanced frame density and stringent delay constraint; 2) the packet retransmission and congestion control mechanisms in TCP may cause frequent throughput fluctuations and deadline violations. Motivated by addressing these critical issues, this research presents an application-layer FEC (Forward Error Correction) framework dubbed ROCHET (RaptOr Coded HFR VidEo over TCP). First, we develop a mathematical model to analyze the frame-level distortion of systematic Raptor codebased HFR video communication over TCP in wireless networks. Second, we propose a joint approximate distortion estimation and Raptor coding adaption solution to minimize the sum of total distortion. The proposed ROCHET is able to effectively leverage unequal error protection and TCP state analysis to enhance streaming video quality. We conduct the performance evaluation through extensive emulations in Exata involving real-time HFR video encoded with H.264 codec. Compared with the existing FEC coding schemes, ROCHET achieves appreciable improvements in terms of video Peak Signal-to-Noise Ratio (PSNR), goodput, and frame success rate. Thus, ROCHET is recommended for TCPbased HFR video transmission over wireless networks.

A Study of High Frame Rate Video Formats

“…They show that it can sometimes be beneficial to use lower encoding frame rates when transmitting video data over very noisy channels, and that visual quality can be increased by using temporal layering techniques at the encoder. Wu et al [45,46] have also proposed solutions (ROCHET, FRIED and JASCO) to enhance video quality when transmitting high frame rates over wireless networks.…”

Simultaneous wireless energy transfer and spectrum sharing with primary data relaying in cognitive radio networks

“…Secondly, the interference management and mode selection can be studied for the smart devices equipped with multiple antennas or radio interfaces (e.g., Wi-Fi, LTE, WiMAX, Bluetooth, etc.) [32,33]; Thirdly, various coding schemes can be designed to improve the transmission rate and reliability, such as Raptor code for wireless video transmission [34].…”

Efficient Cloud Gaming Scheme Using Scene Objects Adaptation

“…To update wireless technologies to be able to implement such techniques, many works were proposed. In [26], a new application was presented. The idea focused mainly on error correction over TCP in wireless networks.…”