Towards Internet QoS Provisioning Based on Generic Distributed QoS Adaptive Routing Engine

Abstract

Increasing efficiency and quality demands of modern Internet technologies drive today's network engineers to seek to provide quality of service (QoS). Internet QoS provisioning gives rise to several challenging issues. This paper introduces a generic distributed QoS adaptive routing engine (DQARE) architecture based on OSPFxQoS. The innovation of the proposed work in this paper is its undependability on the used QoS architectures and, moreover, splitting of the control strategy from data forwarding mechanisms, so we guarantee a set of absolute stable mechanisms on top of which Internet QoS can be built. DQARE architecture is furnished with three relevant traffic control schemes, namely, service differentiation, QoS routing, and traffic engineering. The main objective of this paper is to (i) provide a general configuration guideline for service differentiation, (ii) formalize the theoretical properties of different QoS routing algorithms and then introduce a QoS routing algorithm (QOPRA) based on dynamic programming technique, and (iii) propose QoS multipath forwarding (QMPF) model for paths diversity exploitation. NS2-based simulations proved the DQARE superiority in terms of delay, packet delivery ratio, throughput, and control overhead. Moreover, extensive simulations are used to compare the proposed QOPRA algorithm and QMPF model with their counterparts in the literature.

Cost Optimal Approach using PSO in QOD Protocol for Hybrid Wireless Network

“…A generic distributed QoS adaptive routing engine (DQARE) architecture was introduced in [2]. DQARE architecture is furnished with three relevant traffic control schemes, namely, service differentiation, QoS routing, and traffic engineering.…”

“…It integrates following: 1) a PSO based neighbour selection algorithm to meet the transmission need 2) to reduce the time dalay in transmission a distributed packet scheduling algorithm is used [2]. 3) A packet resizing algorithm alters the size of the packet based on the nodes' mobility.…”

“…3) A packet resizing algorithm alters the size of the packet based on the nodes' mobility. By relying on an observation, it has been show that, the PSO based QOD protocol shows improved performance [2].…”

“…NETWORK AND SERVICE MODEL CONSTRUCTION A hybrid wireless network with associate range of base stations spreading over the network is taken into account for this implementation. N nodes are revolving around with in the network [2]. Assumption is made that, each node is equipped with a single WiFi interface.…”

“…In order to enhance the QoS feature of hybrid networks, QoS-Oriented Distributed routing protocol (QOD) is used. QOD binds five algorithms: 1) a QoS-ensured nearest neighbour selection algorithm to satisfy the need in transmission delay 2) to reduce the transmission delay, a distributed packet scheduling algorithm [2] is used. 3) A packet resizing algorithm alters the size of the packet based on the nodes' mobility.4) a traffic redundant elimination algorithm to increase the transmission [2] output, and 5) a data repetition elimination-based transmission algorithm to eliminate the replicating data for further improvement of the transmission QoS.…”