Network adaptive layered multicast for heterogeneous wireless ad hoc networks

  • Authors:
  • Arjan Durresi;Vamsi Paruchuri;Leonard Barolli

  • Affiliations:
  • Department of Computer and Information Science, Indiana University Purdue University, Indianapolis, IN;Department of Computer Science, University of Central Arkansas, Conway, AR;Department of Information and Communication Engineering, Fukuoka Institute of Technology, Fukuoka, Japan

  • Venue:
  • Journal of Mobile Multimedia
  • Year:
  • 2008

Quantified Score

Hi-index 0.00

Visualization

Abstract

Layered transmission is a promising solution to video multicast over Heterogeneous Wireless Networks. However, since the number of layers is practically limited, noticeable mismatches would occur between the coarse-grained layer subscription levels and the heterogeneous and dynamic rate requirements from the receivers. In this paper, we propose a Network-adaptive Layered Multicast (NALM) approach, that exploits the increasing computing and communications capabilities of wireless devices. We show that by having few multicast nodes (about 10% the number of receivers) to encode and decode the video, an improvement of more than 30% in bandwidth efficiency could be achieved. Furthermore, due to the proximity of such encoding/decoding nodes to the receivers than the source itself, more accurate and faster evaluation of network conditions would be possible leading to faster convergence and further improvement in efficiency.