Paper Info
Title
Transmitting important bits and sailing high radio waves: a decentralized cross-layer approach to cooperative video transmission
Abstract
We investigate the impact of cooperative relaying on uplink multi-user (MU) wireless video transmissions. We analyze and simplify a MU Markov decision process (MDP), whose objective is to maximize the long-term sum of utilities across the video terminals in a decentralized fashion, by jointly optimizing the packet scheduling and physical layer, under the assumption that some nodes are willing to act as cooperative relays. The resulting MU-MDP is a pricing-based distributed resource allocation algorithm, where the price reflects the expected future congestion in the network. Compared to a non-cooperative setting, we observe that the resource price increases in networks supporting low transmission rates and decreases for high transmission rates. Additionally, cooperation allows users with feeble direct signals to significantly improve their video quality, with a moderate increase in total network energy consumption that is far less than the energy these nodes would require to achieve the same video quality without cooperation.
Year
DOI
Venue
2012
10.1109/JSAC.2012.121002
IEEE Journal on Selected Areas in Communications
Keywords
DocType
Volume
Relays,Streaming media,Optimization,Vectors,Channel estimation,Resource management,High temperature superconductors
Journal
abs/1102.5437
Issue
ISSN
Citations 
9
IEEE J. on Select. Areas in Communications, vol. 30, no. 9, pp. 1597-1604, Oct. 2012
16
PageRank 
References 
Authors
0.66
14
5
Name
Order
Citations
PageRank
Nicholas Mastronarde124026.93
Francesco Verde225424.42
Donatella Darsena318217.78
Anna Scaglione42559225.41
Mihaela Van Der Schaar53968352.59