Planning and Design of Contents-Delivery Systems Using Satellite and Terrestrial Networks

Kenichi MASE
Takuya ASAKA
Yoshiaki TANAKA
Hideyoshi TOMINAGA

IEICE TRANSACTIONS on Communications   Vol.E81-B    No.11    pp.2041-2047
Publication Date: 1998/11/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Performance and Quality of Service (QoS) of Multimedia Networks)
Category: Satellite and Wireless Networks
satellite,  internet,  cache,  contents,  cost,  broadcast,  

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An architecture is presented for efficient and reliable delivery of multimedia contents from a primary center (PC) to secondary centers (SCs). Requested contents are delivered from the PC to the SCs through a satellite broadcast channel, or from one SC to another SC through a terrestrial channel. Cycling methods are presented that enable sharing of the contents directory of each SC. Several fundamental models and algorithms are introduced for possible consideration during the planning and design of a contents-delivery system. Simulation has shown that using both satellite broadcast and terrestrial channels for contents delivery is superior in terms of cost to the conventional use of only a satellite network.