A cluster-based model for QoS-OLSR protocol

Otrok, Hadi; Mourad, Azzam; Robert, Jean‐Marc; Moati, Nadia; Sanadiki, Hiba

doi:10.1109/iwcmc.2011.5982694

Cited by 19 publications

(10 citation statements)

References 7 publications

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“…The QoS-OLSR was presented in [2] by improving the QOLSR protocol. This was done by implementing clustering algorithm and adding the residual energy metric along with the bandwidth and the connectivity level metrics while selecting the cluster heads and the MPR nodes.…”

Section: A Olsr-based Routing Protocolsmentioning

confidence: 99%

“…In this section, our proposed routing protocol is compared with the QoS-OLSR proposed in [2]. The following performance metrics are used to evaluate both protocols.…”

Section: B Comparison With the Qos-olsr Protocolmentioning

confidence: 99%

“…There are different routing protocols that are proposed for VANETs in the literature. QoS-OLSR protocol [2] is an enhanced version of the optimized link state routing (OLSR) protocol [3] and QOLSR [4]. QoS-OLSR is a proactive routing protocol designed for MANETs that takes into account the quality of service while selecting the MultiPoint Relay (MPR) nodes.…”

Section: Introductionmentioning

confidence: 99%

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QoS-OLSR protocol based on intelligent water drop for Vehicular ad-hoc networks

Al-Terri

Otrok

Barada

et al. 2015

2015 International Wireless Communications and Mobile Computing Conference (IWCMC)

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In this paper, we address the problem of MultiPoint Relay (MPR) node disconnection due to mobility in Vehicular ad-hoc networks (VANETs) using the cluster-based Quality of Service Optimized Link State Routing (QoS-OLSR) protocol. The protocol uses MPR nodes to establish communication among the clusters. MPR disconnection represents a major challenge in VANETs, due to the frequent change in the network topology. Consequently, the performance of the routing protocol will be weakened as it adversely affects the connectivity level of the network. Thus, our solution is a new cluster-based QoS-OLSR protocol based on intelligent water drop algorithm that is capable of (1) selecting the best set of MPR in terms of QoS (2) dealing with the MPR disconnection as it selects alternatives to assure a connected network (3) maintaining a reliable MPR failure management process. Simulation results demonstrate that the proposed model succeeds in improving the network connectivity and stability, reducing both the overhead and the path length, and increasing the packet delivery ratio compared to the original QoS-OLSR.Index Terms-Cluster-head, MPR, IWD, QoS-OLSR, VANET.978-1-4799-5344-8/15/$31.00 ©2015 IEEE

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Section: A Olsr-based Routing Protocolsmentioning

confidence: 99%

“…In this section, our proposed routing protocol is compared with the QoS-OLSR proposed in [2]. The following performance metrics are used to evaluate both protocols.…”

Section: B Comparison With the Qos-olsr Protocolmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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QoS-OLSR protocol based on intelligent water drop for Vehicular ad-hoc networks

Al-Terri

Otrok

Barada

et al. 2015

2015 International Wireless Communications and Mobile Computing Conference (IWCMC)

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“…QoS-OLSR [13] is a multimedia protocol built on top of Optimized Link State Routing (OLSR) protocol. Based on clustering, nodes can cooperatively select a set of leaders that will form the clusters.…”

Section: Introductionmentioning

confidence: 99%

“…To enhance the probability of detection, we propose a solution based on cooperative watchdogs that will monitor malicious activities. The detection decision will be calculated by aggregating all the observations of MPRs taking into consideration nodes' reputation that was introduced in our previous work QoS-OLSR [13]. To improve the detection rate of the watchdogs, Bayes' rule function is added to the monitor that calculates the posterior belief of a node being misbehaving based on observations.…”

Section: Introductionmentioning

confidence: 99%

Detecting attacks in QoS-OLSR protocol

Sanadiki

Otrok

Mourad

et al. 2013

2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC)

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In this paper, we detect two attacks targeting the QoS-OLSR protocol MANET. The Cluster-based model QoS-OLSR is a multimedia protocol designed on top of Optimized Link State Routing (OLSR) protocol. The quality of service (QoS) of the nodes is considered during the selection of the multipoint relays (MPRs) nodes. In this work, we identify two attacks that can be launched against the QoS-OLSR protocol: Identity spoofing attack, and wormhole attack. Watchdogs are used to detect the attacks performed by malicious nodes. As a solution, we propose to improve the watchdogs' detection by (1) using cooperative watchdog model and (2) adding the posterior belief function using Bayes' rule to the watchdog model. Simulation results show that the use of the Bayes' rule function along with the cooperative watchdog model improves the detection rate and reduces the false positives.

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