Informed Bandwidth Adaptation in Wi-Fi Networks using Ping-Pair

2017 ◽  
Author(s):  
Rajdeep Das ◽  
Nimantha Baranasuriya ◽  
Venkata N. Padmanabhan ◽  
Christoffer Rödbro ◽  
Seth Gilbert
Keyword(s):  
Bandwidth Adaptation

Intelligent Bandwidth Allocation of IPTV Streams with Bitstream Complexity Measures

2015 ◽  
pp. 1941-1961
Author(s):  
Sandro Moiron ◽  
Rouzbeh Razavi ◽  
Martin Fleury ◽  
Mohammed Ghanbari
Keyword(s):  
Bandwidth Allocation ◽  
Video Quality ◽  
Access Network ◽  
Temporal Coding ◽  
Wireless Access Networks ◽  
Core Network ◽  
Complexity Measures ◽  
Broadband Wireless ◽  
Logic Control ◽  
Bandwidth Adaptation

IPTV video services are increasingly being considered for delivery to mobile devices over broadband wireless access networks. The IPTV streams or channels are multiplexed together for transport across an IP core network prior to distribution across the access network. According to the type of access network, prior bandwidth constraints exist that restrict the multiplex data-rate. This paper presents a bandwidth allocation scheme based on content complexity to equalize the overall video quality of the IPTV sub-streams, in effect a form of statistical multiplexing. Bandwidth adaptation is achieved through a bank of bit-rate transcoders. Complexity metrics serve to estimate the appropriate bandwidth share for each stream, prior to distribution over a wireless or ADSL access network. These metrics are derived after entropy decoding of the input compressed bit-streams, without the delay resulting from a full decode. Fuzzy-logic control serves to adjust the balance between spatial and temporal coding complexity. The paper examines constant and varying bandwidth scenarios. Experimental results show a significant overall gain in video quality in comparison to a fixed bandwidth allocation.

A quality metric for use with frame-rate based bandwidth adaptation algorithms

2008 ◽  
Author(s):  
Matthias Krause ◽  
Michael van Hartskamp ◽  
Emile Aarts
Keyword(s):  
Frame Rate ◽  
Quality Metric ◽  
Bandwidth Adaptation
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