A Cluster-based QoS Multicast Routing Protocol for Scalable MANETs

Qabajeh, Mohammad M.; Adballa, Aisha H.; Khalifa, Othman O.; Qabajeh, Liana K.

doi:10.3837/tiis.2011.04.007

Cited by 2 publications

(3 citation statements)

References 19 publications

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“…Hexagon-based clustering is selected because it outperforms other clustering scemes, due to its geometric features. The idea of using cluster-based routing using hexagonal shape has appeared in several previous works such as [11]] [12][13] [14]. However, establishing a cell coordinate system and node location management for hexagonal clustering is an important problem that needs to be solved.…”

Section: Pbqmrp Overviewmentioning

confidence: 99%

“…The performance of the proposed protocol is evaluated through developing both an analytical investigation and extensive simulation using the GloMoSim simulator environment [13]. Part of our simulation results that study wide range of scenarios (node mobilities, multicast group size, node density, network area size and the bandwdith requirement) has been published in [14]. Results demonstrate that PBQMRP has higher packet delivery ratio in large and dense networks and maintains lower normalized packet overhead.…”

Section: Introductionmentioning

confidence: 99%

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Position-Based Multicast Routing in Mobile Ad hoc Networks: An Analytical Study

Qabajeh¹

2012

KSII TIIS

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With the prevalence of multimedia applications and the potential commercial usage of Mobile Ad hoc Networks (MANETs) in group communications, Quality of Service (QoS) support became a key requirement. Recently, some researchers studied QoS multicast issues in MANETs. Most of the existing QoS multicast routing protocols are designed with flat topology and small networks in mind. In this paper, we investigate the scalability problem of these routing protocols. In particular, a Position-Based QoS Multicast Routing Protocol (PBQMRP) has been developed. PBQMRP builds a source multicast tree guided by the geographic information of the mobile nodes, which helps in achieving more efficient multicast delivery. This protocol depends on the location information of the multicast members which is obtained using a location service algorithm. A virtual backbone structure has been proposed to perform this location service with minimum overhead and this structure is utilized to provide efficient packet transmissions in a dynamic mobile Ad hoc network environment. The performance of PBQMRP is evaluated by performing both quantitative analysis and extensive simulations. The results show that the used virtual clustering is very useful in improving scalability and outperforms other clustering schemes. Compared to On-Demand Multicast Routing Protocol (ODMRP), PBQMRP achieves competing packet delivery ratio and significantly lower control overhead.

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Section: Pbqmrp Overviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Position-Based Multicast Routing in Mobile Ad hoc Networks: An Analytical Study

Qabajeh¹

2012

KSII TIIS

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“…Hence, mobility models play a significant role in reflecting the true performance of the dynamically changing network topologies. The choice of mobility models has significant effect on the performance of MANET routing protocols, which can be found in . The authors in investigated and quantified the effects of various factors (node speed, node pause time, network size, number of traffic sources and routing protocol) on the overall performance of ad hoc networks.…”

Section: Introductionmentioning

confidence: 99%

Gamma random waypoint mobility model for wireless ad hoc networks

Sabah

Hocanin

2012

Int J Communication

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SUMMARYRandom waypoint (RWP) mobility model is widely used in ad hoc network simulation. The model suffers from speed decay as the simulation progresses and may not reach the steady state in terms of instantaneous average node speed. Furthermore, the convergence of the average speed to its steady state value is delayed. This usually leads to inaccurate results in protocol validation of mobile ad hoc networks modeling. Moreover, the probability distributions of speed vary over the simulation time, such that the node speed distribution at the initial state is different from the corresponding distribution at the end of the simulation. In order to overcome these problems, this paper proposes a modified RWP mobility model with a more precise distribution of the nodes' speed. In the modified model, the speeds of nodes are sampled from gamma distribution. The results obtained from both analysis and simulation experiments of the average speed and the density of nodes' speed indicate that the proposed gamma random waypoint mobility model outperforms the existing RWP mobility models. It is shown that a significant performance improvement in achieving higher steady state speed values that closely model the pre‐assumed average speeds are possible with the proposed model. Additionally, the model allows faster convergence to the steady state, and probability distribution of speed is steady over the simulation time. Copyright © 2012 John Wiley & Sons, Ltd.

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A Cluster-based QoS Multicast Routing Protocol for Scalable MANETs

Cited by 2 publications

References 19 publications

Position-Based Multicast Routing in Mobile Ad hoc Networks: An Analytical Study

Position-Based Multicast Routing in Mobile Ad hoc Networks: An Analytical Study

Gamma random waypoint mobility model for wireless ad hoc networks

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