Özet:

Video on Demand (VOD) system is an electronic video rental system where the clients have the ability to request and view the video at any time, which make the VOD system become an important technology for many applications. User waiting time, wireless coverage and bandwidth allocation are major challenges of VOD services over Mobile Ad Hoc Networks (MANET’s). The importance of this paper is to find a solution to reduce the delay. Numerous periodic VOD broadcasting protocols have been proposed to support a large number of receivers. Broadcasting is an efficient transmission scheme to provide on-demand service for very popular movies. This paper proposes an enhanced method for the Staggered Broadcast (SB) protocol, known as Zero-Delay Staggered Broadcast (ZDSB) method, where the logical channel of the Local Media Forward (LMF) is partitioned into sub-channels and video segments into sub-segments as well. The results showed that the proposed system is more efficient and better than other proposed methods, where the average waiting time is less than 0.0066 in most scenarios compared to the previous available systems.

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