Design and Optimization of Wireless Sensor Network with Mobile Gateway

Shakya, Monika; Zhang, Jianhua; Zhang, Ping; Lampe, M.

doi:10.1109/ainaw.2007.146

Cited by 12 publications

(6 citation statements)

References 7 publications

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“…Studies on sink mobility has been initiated recently and discussed in [2]- [5]. Most research studies in [2], [3] are related to theoretical aspects of WSNs that are not much helpful to implement real time routing protocols.…”

Section: Related Research Workmentioning

confidence: 99%

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Evaluation of ZigBee Based Wireless Sensor Network with Static Sink and Random Sink Mobility

Aziz¹,

Qureshi²,

Soorage³

et al. 2012

IJCEE

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Abstract-In this paper we investigate performance of a ZigBee based wireless sensor network in two scenarios one with a static sink and other with random sink mobility through extensive ns2-based simulations for various topologies (star, tree and mesh). Wireless Sensor Networks (WSNs) can be considered as a glut of distributed sensor nodes which are able to sense a physical process or environmental parameters and also capable to transfer that information to a predefined sink node through some intermediate nodes. If sink remains static at a fixed position then neighboring nodes of the sink consume their energy more rapidly as compared to other nodes which are far away from the sink because they have to forward all the traffic of the farther away nodes to the sink that leads to complete isolation of sink in a less time and hence network performance is degraded due to non-uniform consumption of energy. We introduce a simple random mobility scheme in which sink moves randomly through whole network. We also investigate end-to-end delay of packets and throughput for identical network conditions in both the cases. The main aim of this work is to evaluate, through simulations, the impact of random sink mobility in a ZigBee/IEEE 802.15.4 based wireless sensor network.Index Terms-Random mobility, WSN, ZigBee, IEEE 802.15.4, sink.

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Section: Related Research Workmentioning

confidence: 99%

“…One problem of these studies is that no real life WSNs, like ZigBee based WSN has been considered. Utilization of mobile sinks in a ZigBee based WSN has been considered in [4], [5]. But these studies did not include random mobility.…”

Section: Related Research Workmentioning

confidence: 99%

Evaluation of ZigBee Based Wireless Sensor Network with Static Sink and Random Sink Mobility

Aziz¹,

Qureshi²,

Soorage³

et al. 2012

IJCEE

View full text Add to dashboard Cite

show abstract

“…So these nodes tend to dissipate more power as compared to other nodes and hence die out much earlier leaving the coordinator unconnected from rest of the network. A considerable number of studies [1,2,4,5,9,10,11] on the mobile coordinator in WSNs have been published and most of them proposed that the mobile coordinator is better option to reduce the formation of hot spots in the network. But none of them concentrated on the change in the throughput due to the mobility of the coordinator.…”

Section: Introductionmentioning

confidence: 99%

Impact of coordinator mobility on the throughput in a ZigBee mesh networks

Dhaka

Jain

Verma

2010

2010 IEEE 2nd International Advance Computing Conference (IACC)

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Zigbee (IEEE 802.15.4) standard interconnects simple, low power and low processing capability wireless devices. The Zigbee devices facilitate numerous applications such as pervasive computing, national security, monitoring and control etc. An effective positioning of nodes in a ZigBee network is particularly important in improving the performance (e.g., throughput) of ZigBee networks. In the wireless sensor network (WSN) literature, the use of a mobile sink is often recommended as an effective defense against the so-called hot-spot phenomenon. But the effects of mobile coordinator on the performance of the network are not given due consideration. In this paper, we perform extensive evaluation, using OPNET Modeler, to study the impact of coordinator mobility on ZigBee mesh network. The results show that the ZigBee mesh routing algorithm exhibits significant performance difference when the router are placed at different locations and the trajectories of coordinator are varied. We also show that the status of ACK in the packet also plays a critical role in deciding network performances.

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“…Mobile elements traversing the network can collect data from sensor nodes when they come near it. Existing mobility in the environment can be used [2][3][4] or mobile elements can be added to the system, which have the luxury to be recharged. This naturally avoids multi-hop and removes the relaying overhead of nodes near the base station.…”

Section: Introductionmentioning

confidence: 99%

“…A number of studies [2,3,[5][6][7][8][9] on the mobile coordinator in WSNs have been published and most of them proposed that the mobile coordinator is better option to reduce the formation of hot spots in the network.…”

Section: Introductionmentioning

confidence: 99%

Load Density Analysis of Mobile Zigbee Coordinator in Hexagonal Configuration

Ramyah¹

2012

WSN

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Mobility is one of the major new paradigms of the current Internet, and this is driving most of the research activity in networking throughout the World. The Mobility of Wireless Sensor Networks (WSN) has become a hot research theme in recent years due to its wide range of applications ranging from medical research to military. The widely adopted standard for wireless sensor network platform is IEEE 802.15.4/ZigBee. The IEEE 802.15.4/ZigBee is considered the “technology of choice” due to low-power, cost-effective communication and the reliability they provide. In this paper, we perform extensive network evaluation, to study the Effect of coordinator mobility on ZigBee mesh network, using OPNET Modeler. In mobile coordinator, the type of the trajectory along with the node density and the traffic are the major factors that decide the system performance. The results obtained from the wide analysis of ZigBee mesh network shows variation when the routers are placed at Hexagonal configuration with a mobile coordinator. In this paper, variations in load metric is analyzed in hexagonal configuration by enabling and disabling ACK. Thus the status of ACK also plays a critical role in analysing load metrics

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Design and Optimization of Wireless Sensor Network with Mobile Gateway

Cited by 12 publications

References 7 publications

Evaluation of ZigBee Based Wireless Sensor Network with Static Sink and Random Sink Mobility

Evaluation of ZigBee Based Wireless Sensor Network with Static Sink and Random Sink Mobility

Impact of coordinator mobility on the throughput in a ZigBee mesh networks

Load Density Analysis of Mobile Zigbee Coordinator in Hexagonal Configuration

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