Hierarchical location service for mobile ad-hoc networks

Kieß, Wolfgang; Füßler, Holger; Widmer, Jörg; Mauve, Martin

doi:10.1145/1052871.1052875

Cited by 154 publications

(60 citation statements)

References 9 publications

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“…Several protocols have been designed to handle mobility of nodes [11][12][13][14][15][16][17][18]. Location servers are responsible for handling geographic location information of nodes in the vicinity and provide them to others when needed.…”

Section: Location Services and Server Selection Problemmentioning

confidence: 99%

“…This method is not very flexible for highly variant environments like VANETs. Hierarchical methods [17,18] for server allocation are highly scalable because the rates of location updates are reduced for servers in higher levels. However, in VANETs, the number of servers may not be very high and forming a hierarchical structure may not be feasible.…”

Section: Location Services and Server Selection Problemmentioning

confidence: 99%

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Reliability-based server selection for heterogeneous VANETs

Hosseininezhad¹,

Leung²

2011

ICST Trans Mobile Comm Appl

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Heterogeneous wireless networks are capable of providing customers with better services while service providers can offer more applications to more customers with lower costs. To provide services, some applications rely on existing servers in the network. In a vehicular ad-hoc network (VANET) some mobile nodes may function as servers. Due to high mobility of nodes and short lifetime of links, server-to-client and server-to-server communications become challenging. In this paper we propose to enhance the performance of server selection by taking link reliability into consideration in the server selection mechanism, thereby avoiding extra client-to-server hand-offs and reducing the need of server-to-server synchronization. As a case study we focus on location management service in a heterogeneous VANET. We provide a routing algorithm for transactions between location servers and mobile nodes. We assume that location servers are vehicles equipped with at least one longrange and one short-range radio interfaces, whereas regular nodes (clients) are only equipped with a short-range radio interface. The primary goal of our design is to minimize hand-offs between location servers while limiting the delays of location updates. Taking advantage of vehicle mobility patterns, we propose a mobility-aware server selection scheme and show that it can reduce the number of hand-offs and yet avoid large delays during location updates. We present simulation results to show that proposed scheme significantly lowers the costs of signaling and rate of server hand-offs by increasing the connection lifetimes between clients and servers.

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Section: Location Services and Server Selection Problemmentioning

confidence: 99%

Section: Location Services and Server Selection Problemmentioning

confidence: 99%

Reliability-based server selection for heterogeneous VANETs

Hosseininezhad¹,

Leung²

2011

ICST Trans Mobile Comm Appl

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“…By exercising such mechanism, nodes are informed about the destination position. Location services like HLS [17] and GLS [9] necessitate great deal of design complex further. As multiple nodes work in tandem to accomplish such process, the integrity of those protocols possibly could be at stake for high mobility scenarios.…”

Section: Location Servicementioning

confidence: 99%

“…Nevertheless we will analyze protocols like GPSR [15], GPCR [23], and GSR [22]. In GPSR, the source is aware of the destination position through a location service [9,16,17]. These protocols incorporate perimeter routing when data packets reach to the local maxima.…”

Section: Position Based Routing Protocolsmentioning

confidence: 99%

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DDOR: Destination discovery oriented routing in highway/freeway VANETs+

Sahu

Sahoo

et al. 2010

Telecommun Syst

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The emerging adoption of wireless communications on surface transportation systems has generated extensive interest among researchers over the last several years. Innovative inter-vehicular communications and vehicle-to-infrastructure communications achieve road traffic safety, ecstatic driving and delightful travelling experiences. Multi-hop information dissemination in vehicular ad hoc networks is challenged by high mobility and frequent disconnections of wireless nodes. This paper presents a new routing scheme for Highway/Freeway VANETs, which consists of a unicast destination discovery process, a robust forward node selection mechanism and a positional hello mechanism. In this paper, no dedicated path is framed in order to prevent frequent path maintenance. In addition, the avoidance of flooding and location services substantially reduces the control overhead. Positional hello scheme ensures connectivity and diminishes control overhead concurrently. Simulation results signify the benefits of the proposed routing strategy (i.e. DDOR) has higher packet delivery ratio, Preliminary version was presented in Proceedings of IEEE APSCC 2008.

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Location Service in Sensor and Mobile Actuator Networks

Nayak

2010

Wireless Sensor and Actuator Networks

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Hierarchical location service for mobile ad-hoc networks

Cited by 154 publications

References 9 publications

Reliability-based server selection for heterogeneous VANETs

Reliability-based server selection for heterogeneous VANETs

DDOR: Destination discovery oriented routing in highway/freeway VANETs+

Location Service in Sensor and Mobile Actuator Networks

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