An adaptive quasi harmonic broadcasting scheme with optimal bandwidth requirement

TL;DR

This paper introduces an adaptive quasi harmonic broadcasting scheme that eliminates synchronization issues in video-on-demand services without increasing bandwidth or causing wastage, ensuring smooth playback.

Contribution

The proposed AQHB scheme improves synchronization and bandwidth efficiency in harmonic broadcasting without additional bandwidth costs or wastage.

Findings

Eliminates download-playback synchronization problems.

Maintains bandwidth consumption equal to traditional schemes.

Prevents sudden bandwidth increases and buffer requirements.

Abstract

The aim of Harmonic Broadcasting protocol is to reduce the bandwidth usage in video-on-demand service where a video is divided into some equal sized segments and every segment is repeatedly transmitted over a number of channels that follows harmonic series for channel bandwidth assignment. As the bandwidth of channels differs from each other and users can join at any time to these multicast channels, they may experience a synchronization problem between download and playback. To deal with this issue, some schemes have been proposed, however, at the cost of additional or wastage of bandwidth or sudden extreme bandwidth requirement. In this paper we present an adaptive quasi harmonic broadcasting scheme (AQHB) which delivers all data segment on time that is the download and playback synchronization problem is eliminated while keeping the bandwidth consumption as same as traditional harmonic broadcasting scheme without cost of any additional or wastage of bandwidth. It also ensures the video server not to increase the channel bandwidth suddenly that is, also eliminates the sudden buffer requirement at the client side. We present several analytical results to exhibit the efficiency of our proposed broadcasting scheme over the existing ones.