Label Switch Path with guaranteed Quality of Service in Mobile Ad Hoc Network

Abstract

The increasing use of MANETs for transferring multimedia applications such as voice, video and data, leads to the need to provide QoS support. This paper introduces a resource reservation-based label switch path, Label Switch Path with guaranteed Quality of Service (LSPQS) that provides end-toend quality of service support, in terms of bandwidth, link loss ratio and end-to-end delay, in mobile ad hoc networks. The establishment of LSP allows for forwarding of data below IP layer and encapsulation of variety of MAC protocols. To provide guaranteed QoS along LSP detailed working out is presented to allow estimation of available bandwidth, link loss ratio and end-to-end delay in unsynchronized wireless environment. LSPQS also includes efficient mechanisms for QoS maintenance, including temporary reservation and fast recovery processes.

Improved network resilience of wireless mesh networks using MPLS and Fast Re-Routing techniques

“…In [25], an architecture for resource reservation and QoS assurance is proposed using label switching. In particular the proposal integrates label forwarding functions and resource reservation to guarantee QoS with per-flow granularity.…”

M²PLS: Mobile Multiprotocol Label Switching

“…Estimation of available bandwidth in M\ANeTs is a tricky task as the total bandwidth of wireless channel is shared among neighboring nodes, and an individual node has no knowledge about traffic status of neighboring nodes [6]. Thus for bandwidth estimation, each host is required to know the existing channel traffic load or in other words, the bandwidth reserved by its neighbors.…”

“…As a result, the delay of sending a message suffers from number of neighbors, medium bandwidth, the transmission power of node, length of queue at downstream node and also size of message and bandwidth of sending node. Roundtrip delay from sending node to downstream node is estimated by sending "Hello" messages [6].…”

“…M Jabeen and Shoab A Khan [6] have proposed a resource reservation-based label switch path: Label Switch Path with guaranteed Quality of Service (LSPQS). It provides end-to-end quality of service support, in terms of bandwidth, link loss ratio and endto-end delay in M\ANeTs.…”

“…The concept of incorporating MPLS in MANeTs is not new. There are at least three previous works related to this [3] [4] [5] [6].…”