DocumentCode :
1772847
Title :
Video-aware multicast opportunistic routing over 802.11 two-hop mesh networks
Author :
Choumas, Kostas ; Syrigos, Ilias ; Korakis, T. ; Tassiulas, L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Thessaly, Volos, Greece
fYear :
2014
fDate :
June 30 2014-July 3 2014
Firstpage :
486
Lastpage :
494
Abstract :
In this paper, we propose and characterize the performance of a novel video-aware Opportunistic Routing (OR) algorithm for multicast, using a one-hop and two-hop forwarding scheme in 802.11 mesh networks. We believe that the OR approach exploits the inherent broadcast nature of the wireless medium and adapts very well in the lossy wireless environment. Inferring from the above, we extend a state of the art routing algorithm, namely MORE, that leverages on this approach and offers multicast support, but is not efficiently applicable in video streaming. By employing our scheme, we enable support for video streaming application with hard time-constraints. In addition, we focus on the orchestration of the packet transmissions and the prioritization of the video traffic towards improving the video-perception quality of the end users. In order to evaluate the proposed scheme, we conducted experiments in a realistic medium-scale wireless testbed. Our results show that the proposed scheme increases the average video-perception quality, measured in PSNR, by up to 270% in some cases or up to 175% in average, compared to the MORE algorithm.
Keywords :
multicast communication; telecommunication network routing; telecommunication traffic; wireless mesh networks; 802.11 two-hop mesh networks; MORE algorithm; lossy wireless environment; medium-scale wireless testbed; one-hop forwarding scheme; packet transmissions; two-hop forwarding scheme; video streaming; video traffic; video-aware multicast opportunistic routing; video-perception quality; wireless medium; Protocols; Relays; Routing; Streaming media; Throughput; Wireless communication; Wireless sensor networks; mesh network; multicast; network coding; opportunistic routing; testbed implementation; video traffic;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensing, Communication, and Networking (SECON), 2014 Eleventh Annual IEEE International Conference on
Conference_Location :
Singapore
Type :
conf
DOI :
10.1109/SAHCN.2014.6990387
Filename :
6990387
Link To Document :
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