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The Scientific World Journal
Volume 2015, Article ID 405974, 11 pages
Research Article

Primary Path Reservation Using Enhanced Slot Assignment in TDMA for Session Admission

1Department of Computer Science and Engineering, Tagore Engineering College, Chennai 600127, India
2Department of Electronics and Communication Engineering, Jerusalem College of Engineering, Chennai 600100, India
3HCL Technology, Chennai, India
4Department of Computer Science and Engineering, Anand Institute of Higher Engineering and Technology, Chennai, India

Received 16 May 2014; Revised 15 September 2014; Accepted 28 October 2014

Academic Editor: Ahmad T. Azar

Copyright © 2015 Suresh Koneri Chandrasekaran et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Mobile ad hoc networks (MANET) is a self-organized collection of nodes that communicates without any infrastructure. Providing quality of service (QoS) in such networks is a competitive task due to unreliable wireless link, mobility, lack of centralized coordination, and channel contention. The success of many real time applications is purely based on the QoS, which can be achieved by quality aware routing (QAR) and admission control (AC). Recently proposed QoS mechanisms do focus completely on either reservation or admission control but are not better enough. In MANET, high mobility causes frequent path break due to the fact that every time the source node must find the route. In such cases the QoS session is affected. To admit a QoS session, admission control protocols must ensure the bandwidth of the relaying path before transmission starts; reservation of such bandwidth noticeably improves the admission control performance. Many TDMA based reservation mechanisms are proposed but need some improvement over slot reservation procedures. In order to overcome this specific issue, we propose a framework—PRAC (primary path reservation admission control protocol), which achieves improved QoS by making use of backup route combined with resource reservation. A network topology has been simulated and our approach proves to be a mechanism that admits the session effectively.