Paper Info
Title
Performance evaluation of sender-assisted HTTP-based video streaming in wireless ad hoc networks.
Abstract
HTTP Adaptive Streaming (HAS) delivers video streaming services according to a client–server architecture where the client originates consecutive HTTP requests to download chunks of encoded video. In state-of-the-art systems, the client selects the chunk out of a finite set of differently encoded versions of the same video made available at the server site; the selection is driven by a client-centered buffer management procedure. Still, dynamic bitstream switching may have drawbacks in terms of undesirable visual quality fluctuations artifacts at the final user; besides, it may result in oscillatory behavior of the overall traffic in case of multiple users. Therefore, this paper proposes a sender-assisted procedure for HTTP Adaptive Streaming (HAS) services with improved user Quality of Experience (QoE) that proactively avoids buffer underflow events at the receiver side, thus reducing the need for dynamic bitstream switching. In the proposed sender-assisted approach, HAS leverages information on the encoded video available at the server side to assist the client in originating the data requests. Specifically, the sender-assisted HAS procedure exploits information on the encoded video content available at the sender side to regulate the interval between consecutive client-originated download requests. Significant QoE improvements brought by the proposed sender-assisted video streaming procedure are demonstrated in challenging fluctuating throughput conditions encountered in wireless ad hoc networks.
Year
DOI
Venue
2015
10.1016/j.adhoc.2014.07.023
Ad Hoc Networks
Keywords
Field
DocType
HTTP adaptive streaming,Wireless ad hoc networks,Quality of Experience (QoE)
Server-side,Computer science,Computer network,Communication source,Exploit,Buffer underrun,Quality of experience,Throughput,Wireless ad hoc network,Bitstream
Journal
Volume
ISSN
Citations 
24
1570-8705
2
PageRank 
References 
Authors
0.39
7
4
Name
Order
Citations
PageRank
Stefania Colonnese113726.43
Francesca Cuomo267454.36
Raffaele Guida380.92
Tommaso Melodia44398290.59