A study of Adaptive Replication Technique in routing time-constrained messages (VoIP) in MANET
Journal Title: International Journal on Computer Science and Engineering - Year 2011, Vol 3, Issue 6
Abstract
Imposing the constraint of timely delivery on usual messages is referred as time-constrained messages. The utility of such messages depends upon the time at which they arrive at their destination. Due to contention among randomly arriving messages at each node/link and multi-hops between the source and destination that a message must travel, it is difficult to guarantee the timely delivery of such messages. In case of faulty links or node, it is likely impossible for messages to reach at required destination in time. To handle such type of faults, the idea of sending multiple copies or replicated copies is used. The probability of successful message delivery within time will be increased through sending multiple copies through disjoint routes, as at least one copy will be reached within time. But this will degrade the network performance due to congestion and other problems. Therefore, it is require sending only optimum number of copies through disjoint routes. Such copies are estimated on the basis of network load and message deadline. In this paper, we present the method to estimate the optimum number of copies. The system is designed for developing replication strategy named as Adaptive Fault Tolerance Replication Technique (AFTRT) for VoIP applications used for Mobile Ad hoc Network. The parameters such as end-to-end latency, node delivery index and message delivery probability are determine by the destination and send as feedback to the source. Based on this information, source replicates the message. The performance study is conducted through simulation using NS2 simulator.
Authors and Affiliations
SWATI SAXENA , Dr. MADHAVI SINHA
Keywords
Related Articles
- EP ID EP155408
- DOI -
- Views 103
- Downloads 0
Efficient Parallel Data Processing in the Cloud
Cloud computing is a distributed computing technology which is the combination of hardware and software and delivered as a service to store, manage and process data. A new system is proposed to allocate resources dynamic...
A Congestion Controlled Multipath Routing Algorithm Based On Path Survivability Factor
Mobile wireless ad hoc network has emerged as the self organized wireless interconnection for the various applications in random topology. However achieving reliable transmission in mobile wireless network is crucial due...
Private and Secure Hyperlink Navigability Assessment in Web Mining Information System
Information explosion in World Wide Web has increased the interest in Web usage mining techniques in both commercial and academic areas. Study of interested web users; provide valuable information for web designers to qu...
Encoding And Decoding of a Message in the Implementation of Elliptic Curve Cryptography using Koblitz’s Method
Elliptic Curve Cryptography recently gained a lot of attention in industry. The principal attraction of ECC compared to RSA is that it offers equal security for a smaller bit size, thereby educing processing overhead. E...
Digital Image Search & Retrieval using FFT Sectors of Color Images
Abstract- This paper presents the method developed to search and retrieve similar images from a large database. The Fourier transform is used to generate the feature vectors based on the mean values of real and imaginary...