Abstract
Ad hoc network (MANET) is a collection of mobile nodes that can communicate with each other without using any fixed infrastructure. To support multimedia applications such as video and voice MANETs require an efficient routing protocol and quality of service (QoS) mechanism. Node-Disjoint Multipath Routing Protocol (NDMR) is a practical protocol in MANETs: it reduces routing overhead dramatically and achieves multiple node-disjoint routing paths. QoS support in MANETs is an important issue as best-effort routing is not efficient for supporting multimedia applications. This paper presents a novel adaptation of NDMR, QoS enabled NDMR, which introduces agent-based SLA management. This enhancement allows for the intelligent selection of node-disjoint routes based on network conditions, thus fulfilling the QoS requirements of Service Level Agreements (SLAs).
Highlights
Mobile ad hoc networks are infrastructureless networks that can be rapidly deployed
This paper presents an approach built on the Node-Disjoint Multipath Routing Protocol (NDMR) [5]
This paper has presented architecture for guaranteeing quality of service (QoS) based on Node-Disjoint Multipath Routing Protocol (NDMR) in mobile ad hoc networks
Summary
Mobile ad hoc networks are infrastructureless networks that can be rapidly deployed. They are characterized by multihop wireless connectivity, frequently changing network topology and the need for efficient dynamic routing protocols [1]. Since an RREP only currently contains the route path, it cannot provide effective QoS support for MANETs. It is proposed that RREP packets should carry more information such as delay time (queue length) in order to meet certain SLA requirements. After receiving the RREP from route 3 (R3) (s-g-h-i-d), it will compare the queue length of the existing routes, change to route 3 (R3) (s-g-h-i-d) to continue transmitting data Using this approach, it can reduce the transmission delay rate and meet the SLA requirements. The reason is that with RREP packets carrying real-time delay time back and RUP, the data packets will always be transmitted along the lowest congestion path
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