Analysis of Time-Based Random Waypoint Mobility Model for Wireless Mobile Networks

Nayebi, Abbas; Rahimi, Majid; Azad, Hamid Sarbazi

doi:10.1109/itng.2007.38

Cited by 14 publications

(8 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The literature [16,28] includes studies of the properties of RWP. Several variations have been proposed [29–32]. In the random walk mobility model, each node randomly chooses speed and direction in constant time intervals without setting a destination.…”

Section: Related Workmentioning

confidence: 99%

A random obstacle‐based mobility model for delay‐tolerant networking

Liu

2011

Int J Network Mgmt

View full text Add to dashboard Cite

SUMMARYWhen evaluating a new protocol in the network, it is important to use a realistic mobility model to reflect the actual performance of a mobile system. Only the realistic mobility model can better mimic the reality and get more reliable data. However, most existing mobile models of delay-tolerant networking (DTN) move randomly or on the road according to some rules under the environment without obstacles. These mobile models, without considering the impact of obstacles on the node, do not accord with the fact. To address this problem, we propose a random obstacle-based mobility model (ROM) aimed at better simulating the real trajectory of a human for DTN in the presence of obstacles. In this model, we can place arbitrary-shape obstacles in accordance with any actual scene, as well as considering the influence of obstacles on the signal. The mobile path of a node calculated by this node is the shortest path to the destination avoiding certain types of obstacles. In addition, the propagation model contains the attenuation of the signal due to the existence of obstacles. As a result, we have developed a complete obstacle mobility model which is more suitable for studying the performance of the network. We augment the 'opportunistic network environment' (ONE) simulator of DTN with required extensions and show that characteristics of the DTN are very different using the new model than it is under models that ONE currently provides.

show abstract

Section: Related Workmentioning

confidence: 99%

A random obstacle‐based mobility model for delay‐tolerant networking

Liu

2011

Int J Network Mgmt

View full text Add to dashboard Cite

show abstract

“…After a certain pause time they repeat the same process all over again. The properties of the RWP model have been studied extensively in the literature [8], [29], while several variations have also been proposed [7], [12], [14], [22]. In the Random Walk (RW) mobility model, each node randomly chooses speed and direction in constant time intervals without setting destination.…”

Section: Related Workmentioning

confidence: 99%

An obstacle-aware human mobility model for ad hoc networks

Papageorgiou

Birkos

Dagiuklas³

et al. 2009

2009 IEEE International Symposium on Modeling, Analysis &Amp; Simulation of Computer and Telecommunication Systems

View full text Add to dashboard Cite

In this work we present an obstacle-aware human mobility model for ad hoc networks. Typical examples where the nodes of mobile ad hoc networks are human-operated are natural or man-made disasters, military activities or healthcare services. In these scenarios, obstacles are an integral part of the areas where such networks are deployed in order to facilitate communication among the firemen, policemen, medics, soldiers, etc. In the proposed mobility model, the nodes of the network move around the obstacles in a natural and realistic way. A recursive procedure is followed by each node according to which every time an obstacle is encountered between the node's current position and the final destination point, the node moves to the obstacle's vertex that is closest to the destination. This process is repeated until the destination is reached. The obstacles are also taken into account in modeling the signal propagation. When a packet is transmitted through an obstacle, the power at which it is received is attenuated by a certain value representing the physical layer phenomena suffered by the signal. The model is implemented as an add-on module in Network Simulator ns-2. A thorough simulation study conducted highlights the differences of the proposed model with other mobility models, by investigating the properties of the resulting network topologies and their impact on network performance.

show abstract

“…[25]) uses the RWP model. The properties of the RWP model have been extensively studied in the literature [8], [31], while several variations have also been proposed [7], [12], [15], [22] in the literature. In the Random Walk (RW) mobility model, each node randomly chooses speed and direction in constant time intervals without setting destination.…”

Section: Related Workmentioning

confidence: 99%

Simulating mission critical mobile ad hoc networks

Papageorgiou

Birkos

Dagiuklas

et al. 2009

Proceedings of the 4th ACM Workshop on Performance Monitoring and Measurement of Heterogeneous Wireless and Wired Networks

View full text Add to dashboard Cite

In this paper we present a mobility model for ad hoc networks operating in mission critical situations, like for example natural or man-made disasters, military activities or emergency healthcare services. The proposed model captures the properties of mobility in situations like the above by incorporating hierarchical node organisation, typical for such scenarios modes of node activity, event-based destination selection and presence of physical obstacles that affect both the node movement and the signal propagation. The nodes are divided into groups with each group leader responsible for choosing the destination points. These choices resemble the events that occur in the network deployment area and the corresponding missions that are assigned to the node groups. The proposed model includes two modes of node activity that represent the two types of nodes primarily comprising such networks: the emergency workers and the medical staff. Each event belongs to a certain class, according to which reinforcements are called to provide further assistance. The conducted simulation study highlights the differences between the proposed model and other mobility models, by investigating their properties in terms of the resulting network topology and their impact on the performance of an ad hoc network operating under a well known routing protocol.

show abstract

Analysis of Time-Based Random Waypoint Mobility Model for Wireless Mobile Networks

Cited by 14 publications

References 12 publications

A random obstacle‐based mobility model for delay‐tolerant networking

A random obstacle‐based mobility model for delay‐tolerant networking

An obstacle-aware human mobility model for ad hoc networks

Simulating mission critical mobile ad hoc networks

Contact Info

Product

Resources

About