This paper provides a measurement-based performance evaluation of the Optimized Link State Routing (OLSR) protocol. Two versions of OLSR, OLSR-ETX and OLSR-ETT, are implemented and evaluated on a mesh network that we built from off-the-shelf commercial components and deployed within our department building. OLSR-ETX uses the Expected Transmission Count (ETX) metric, whereas OLSR-ETT uses the Ex...

MANET networks are of prime interest for military networks. One of the proeminent routing protocols for MANET is OLSR, and indeed, OLSR has been used in many evaluations and experiments of MANETs. As OLSR is on its way to standardization, there are still a number of extensions that are useful and sometimes necessary for practical use of OLSR networks: such extensions are quality of service supp...

Routing in Mobile Ad-hoc Networks has received a lot of attention due to the challenges posed by the self-organizing nature of the network, the dynamic topology, and the unreliable wireless medium. One of the most critical issues for MANETs is how to increase network lifetime, since nodes are typically battery powered. In this paper we consider the proactive MANET protocol OLSR to improve the n...

Optimization Link State Routing Protocol (OLSR) is initially designed for ad hoc networks (MANETs). This protocol collects information to build and maintain the route between the source and the destination with minimum cost by periodically exchange Hello and control messages. The aggregate function of communication cost for all nodes computed based on the required performance metrics. The stand...

OLSR is a well-known proactive routing protocol designed for mobile ad hoc networks (MANETs). OLSR adopts a concept of an MPR mechanism where only mobile nodes selected as MPR nodes can retransmit broadcast packets received from other mobile nodes. Although OLSR reduces the number of broadcast packets, MPR nodes consume more energy than other mobile nodes. Since mobile nodes in MANETs are power...

Wirelessmeshnetworks (WMNs) have emerged as a key technologyhaving various advantages, especially in providing cost-effective coverage and connectivity solutions in both rural and urban areas. WMNs are typically deployed as backbone networks, usually employing spatial TDMA (STDMA)-based access schemes which are suitable for the high traffic demands of WMNs. This paper aims to achieve higher uti...

This paper presents a new hybrid protocol which combines the end-to-end routing of traditional wireless mobile ad-hoc networks (MANETs) with the store-carryforward routing paradigm of delay-tolerant networks (DTNs). An extensive evaluation over a wide range of topologies, from highly connected to highly disconnected typologies, shows that this protocol can significantly improve performance in m...

With the current increase in ad-hoc mobile networks in public domains (e.g. airports, cities, etc.), and the widespread use of the IEEE 802.11 standard in wireless LAN, there is a growing need to handle and manage fast mobility. Optimized Link State Routing protocol (OLSR) is a proactive protocol that enables routing in Mobile Ad-hoc NETworks (MANETs). Fast-OLSR is a new extension of OLSR desig...

The Optimised Link State Routing (OLSR) is a proactive routing protocol which relies on periodical broadcast of routing packets. However, due to the one-to-many relationship of broadcast traffic, the delivery of these packets can not be guaranteed by underlying MAC protocol, particularly in a congested condition. In this paper, the possible routing pathologies and failures of OLSR in a congeste...

The aim of this Paper is to study the performance of the OLSR protocol. This paper is about security issues in OLSR. There are many ways a malicious node can exploit the vulnerabilities to launch attack on network. OLSR is a proactive routing protocol, Control packets has been send by OLSR to build and update the topology. As a part of this paper I have simulated a new attack method against OLS...