Improving AODV Performance Using Dynamic Density Driven Route Request Forwarding

Kanakaris, Venetis; Ndzi, David; Ovaliadis, Kyriakos

doi:10.5121/ijwmn.2011.3302

Cited by 17 publications

(14 citation statements)

References 16 publications

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“…The reduction in route request transmissions in a network using AODV_EXT_BP has resulted in 3.3% which is 0.3% better energy efficiency savings compared to AODV_EXT [12], more than 70% reduction in the number of dropped packets because of reduced packet collision and increased data throughput. The results from this simulation can be compared with those in the research conducted by Khelifa and Maaza [32] proposed the Energy Reversed Ad-Hoc On-Demand Distance Vector (ER-AODV) routing protocol and consumes up to 2.0% more power than AODV_EXT_BP.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, many probabilistic approaches have been proposed in [8][9][10][11] with the aim to alleviate the flooding phenomenon and solve the broadcast storm problem. The authors have already proposed a probability-based algorithm in [12] which is an improved version of Ad-hoc On-Demand Distance Vector Routing (AODV), the AODV_EXT, which reduces energy consumption by 3%. In this article, we propose a modification of AODV, the AODV_EXT_BP, protocol which improves the energy and data transmission efficiency of the network by using the Bayesian probability theory and give better results compared to AODV_EXT.…”

Section: Introductionmentioning

confidence: 99%

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A new RREQ message forwarding technique based on Bayesian probability theory

Kanakaris

Ndzi

Ovaliadis

et al. 2012

J Wireless Com Network

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The flooding method, which is used by many mobile ad-hoc routing protocols, is a process in which a route request packet (RREQ) is broadcasted from a source node to other nodes in the network. This often results in unnecessary re-transmissions, causing packet collisions and congestion in the network, a phenomenon called broadcast storm. This article presents firstly the impact of a different message forwarding probability on the RREQ and secondly a RREQ message forwarding scheme which is implemented on Ad-hoc On-Demand Distance Vector Routing (AODV) routing protocol, a Bayesian probability based the AODV extended version based on a modified version of Bayesian probability (AODV_EXT_BP) that reduces routing overheads, by calculating the probability with respect to the neighbour density as well as the posterior probability. The performance of the AODV_EXT_BP is compared to that of extended version of AODV (AODV_EXT), AODV, Destination Sequenced Distance Vector, dynamic source routing and Optimized Link State Routing protocols and the simulation results show that the AODV_EXT_BP protocol achieves better results in all sectors.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new RREQ message forwarding technique based on Bayesian probability theory

Kanakaris

Ndzi

Ovaliadis

et al. 2012

J Wireless Com Network

Self Cite

View full text Add to dashboard Cite

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“…A majority of the wireless sensors on the market operate in the 2.4-2.5 GHz band [18]. Many researchers planning WSNs use the two-ray (consisting of the direct and ground reflected paths) model to predict network coverage [19]. For ground reflection path to exist the boundary of the first Fresnel Zone, defined by (11) must be greater than, the antenna height.…”

Section: Evaluation Of Vegetation Attenuation Modelsmentioning

confidence: 99%

Vegetation Attenuation Measurements and Modeling in Plantations for Wireless Sensor Network Planning

Ndzi¹,

Kamarudin²,

Mohammad³

et al. 2012

PIER B

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Abstract-As wireless communication moves from long to short ranges with considerably lower antenna heights, the need to understand and be able to predict the impact of vegetation on coverage and quality of wireless services has become very important. This paper focuses on vegetation attenuation measurements for frequencies in the range 0.4-7.2 GHz in mango and oil palm plantations to evaluate vegetation attenuation models for application in wireless sensor network planning and deployment in precision agriculture. Although a number of models have been proposed and evaluated for specific frequencies, results show that these models do not perform well when applied to different vegetation types or at different frequencies. A global assessment of the models using a broad range of frequencies shows that the COST 235 model gives more consistent results when there is vegetation in the propagation path. For grid-like plantation, the study shows that the RET model provides the best prediction of path loss for measurements between two rows of trees. However, taking into account the limited number of parameter values available for the RET model and the potential inaccuracy that may results from the use of a wrong parameter value, a sub-optimal model which combines the ITUR model with ground reflection does offer a more consistent prediction. The differences in the average values of RMS error between RET, ITUR and free space loss models when combined with ground reflection is less than 1.6 dB.

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“…Another study that focused on an adaptive probability value based on number of neighbors was proposed by [15]. The author tried to overcome the drawbacks of fixed probability.…”

Section: Algorithm: Fixed Probabilistic Scheme (Fp)mentioning

confidence: 99%

Literature Survey on Existing Power Saving Routing Methods and Techniques for Increasing Network Life Time in Manet

Mariyappan¹,

Karnan²

2017

IJCT

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Mobile ad hoc network (MANET) is a special type of wireless network in which a collection of wireless mobile devices (called also nodes) dynamically forming a temporary network without the need of any preexisting network infrastructure or centralized administration. Currently, Mobile ad hoc networks (MANETs) play a significant role in university campus, advertisement, emergency response, disaster recovery, military use in battle fields, disaster management scenarios, in sensor network, and so on. However, wireless network devices, especially in ad hoc networks, are typically battery-powered. Thus, energy efficiency is a critical issue for battery-powered mobile devices in ad hoc networks. This is due to the fact that failure of node or link allows re-routing and establishing a new path from source to destination which creates extra energy consumption of nodes and sparse network connectivity, leading to a more likelihood occurrences of network partition. Routing based on energy related parameters is one of the important solutions to extend the lifetime of the node and reduce energy consumption of the network. In this paper detail literature survey on existing energy efficient routing method are studied and compared for their performance under different condition. The result has shown that both the broadcast schemes and energy aware metrics have great potential in overcoming the broadcast storm problem associated with flooding. However, the performances of these approaches rely on either the appropriate selection of the broadcast decision parameter or an energy efficient path. In the earlier proposed broadcast methods, the forwarding probability is selected based on fixed probability or number of neighbors regardless of nodes battery capacity whereas in energy aware schemes energy inefficient node could be part of an established path. Therefore, in an attempt to remedy the paucity of research and to address the gaps identified in this area, a study examining the impact of residual energy on forwarding probability and how to exclude small amount of residual battery level during route establishment are critically important.

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Improving AODV Performance Using Dynamic Density Driven Route Request Forwarding

Abstract: ABSTRACT

Cited by 17 publications

References 16 publications

A new RREQ message forwarding technique based on Bayesian probability theory

A new RREQ message forwarding technique based on Bayesian probability theory

Vegetation Attenuation Measurements and Modeling in Plantations for Wireless Sensor Network Planning

Literature Survey on Existing Power Saving Routing Methods and Techniques for Increasing Network Life Time in Manet

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