CASPIAN JOURNAL

MANAGEMENT AND HIGH TECHNOLOGIES

FACILITIES AND METHODS OF EFFECTIVE ORGANIZATION OF IPTV SERVICES

Read Borodinsky Alexey А.  FACILITIES AND METHODS OF EFFECTIVE ORGANIZATION OF IPTV SERVICES // Caspian journal : management and high technologies. — 2011. — №3. — pp. 7-12.

Borodinsky Alexey А. - director, Astrakhan branch of OJSC “Rostelecom”, 7/8 Teatralny lane, Astrakhan, 414000, Russia, asicom@ast.south.rt.ru.

The article describes the methods and techniques proposed for use of telecommunications operators providing IPTV services. These methods can improve the efficiency of providing IPTV services. It describes the use of wireless broadband access technologies and the introduction of caching servers. A recent important evolution in broadband access network design is the deployment of IP aware access network elements, which allows to introduce access network services beyond basic triple-play. Another focus of this paper is on the management of time-shifted television (tsTV), an IPTV service which allows watching the broadcast content at real-time or with a (small) time shift. An architecture for a large-scale tsTV service deployment is presented, using co-operating transparent diskless proxy caches in broadband access networks, with an implementation based on the IETF’s Real-Time Streaming Protocol (RTSP). Caching algorithms have been designed to take into account content popularity and distance metrics. The algorithms make use of the sliding window concept and calculate the optimal trade-off between bandwidth usage efficiency and storage cost.

Key words: IPTV,time-shifted TV,real-time algorithms,transparent proxy,RTSP,WiMAX,co-operating proxy caches,caching algorithm,wireless broadband access,sliding window.,