Authors: Ibrahim Al-Oqily; Kasem M. Al-Aubidy; Ahmad Alshtnawi; Khalid T. Al-Sarayreh
Addresses: Faculty of Prince Al Hussein Bin Abdullah II for Information Technology, Hashemite University, P.O. Box 150459, Zarqa 13115, Jordan ' Faculty of Engineering, Philadelphia University, P.O. Box 1, Amman 19393, Jordan ' Faculty of Information Technology, Philadelphia University, P.O. Box 1, Amman 19393, Jordan ' Faculty of Prince Al Hussein Bin Abdullah II for Information Technology, Hashemite University, P.O. Box 150459, Zarqa 13115, Jordan
Abstract: Interest in service specific overlay networks (SSONs) has been increased in recent years, where each overlay is designed to meet the user's specific requirements. It is considered an effective means to support end-to-end quality of service guarantees. A key component of these overlay networks is the media ports (MPs). MPs are network side functions that provide value added functions such as catching, synchronisation and adaptation. Efficient overlay networks construction requires an efficient and dynamic MPs resource discovery approach. In this paper, the researchers propose a new resource discovery scheme for MPs. The proposed approach clusters MPs into groups of similar types. Clusters are disjoint with no global entity. To discover MPs, a modified version of random walk (RW) called RW+ is presented. The proposed RW+ allows network nodes to learn about existing clusters and resources in an efficient way which renders RW+ to be partially random. This greatly enhances the performance and the efficiency of the resource discovery scheme. Simulation experiments demonstrate the effectiveness of the proposed scheme. In particular, it shows that RW+ can achieve a higher success rate and a lower response time and network load.
Keywords: multimedia; network management; resource discovery; services; decision support systems; DSS; service networks; overlay networks; media ports; media port clusters; random walk.
International Journal of Business Information Systems, 2014 Vol.15 No.2, pp.222 - 243
Published online: 07 Jun 2014 *Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article