Paper Info
Title
Efficient MAC for Real-Time Video Streaming over Wireless LAN
Abstract
Wireless communication systems are highly prone to channel errors. With video being a major player in Internet traffic and undergoing exponential growth in wireless domain, we argue for the need of a Video-aware MAC (VMAC) to significantly improve the throughput and delay performance of real-time video streaming service. VMAC makes two changes to optimize wireless LAN for video traffic: (a) It incorporates a Perceptual-Error-Tolerance (PET) to the MAC frames by reducing MAC retransmissions while minimizing any impact on perceptual video quality; and (b) It uses a group NACK-based Adaptive Window (NAW) of MAC frames to improve both throughput and delay performance in varying channel conditions. Through simulations and experiments, we observe 56--89% improvement in throughput and 34--48% improvement in delay performance over legacy DCF and 802.11e schemes. VMAC also shows 15--78% improvement over legacy schemes with multiple clients.
Year
DOI
Venue
2015
10.1145/2744412
ACM Transactions on Multimedia Computing, Communications and Application
Keywords
Field
DocType
Design,Performance,IEEE 802.11 standards,video transmission,wireless LAN
Wireless communication systems,Wireless,Computer science,Video streaming,Communication channel,Computer network,Real-time computing,Perceptual video quality,Wireless lan,Throughput,Internet traffic
Journal
Volume
Issue
ISSN
11
4
1551-6857
Citations 
PageRank 
References 
0
0.34
15
Authors
3
Name
Order
Citations
PageRank
Eilwoo Baik1403.59
Amit Pande226924.58
Prasant Mohapatra34344304.46