Zone-based update mechanism for Location Based Services (LBS)

Almasri, Suleiman; Hunaiti, Ziad; Sedoyeka, Eliamani; Balachandran, W.

doi:10.1109/isie.2008.4676997

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…In LBS systems, downlink channel performance is much more important than uplink channel simply because the users send few packets (enquiries) and receives loads of data and services (Almasri et al, 2008). It is obvious in Figure 16 that the delay (RTT) for both downlink and uplink channels in an urban environment (London) is much higher than the same delay for both channels in suburban environment (Chelmsford).…”

Section: Delaymentioning

confidence: 99%

“…GPS is being widely utilized in many localizing applications such as mobile tracking and guidance, health assistive and learning applications. GPS is considered as an essential component in such applications providing the required information responsible for identifying where the LBS service should be delivered (Almasri et al, 2008).…”

Section: Gps Performance Issuesmentioning

confidence: 99%

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Location-Based Services (LBS) in Micro-Scale Navigation

حنيتي

Alnabhan

Sedoyeka

2009

International Journal of E-Services and Mobile Applications

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Pedestrians LBS are accessible by hand-held devices and become a large field of energetic research since the recent developments in wireless communication, mobile technologies and positioning techniques. LBS applications provide services like finding the neighboring facility within a certain area such as the closest restaurants, hospital, or public telephone. With the increased demand for richer mobile services, LBS propose a promising add-on to the current services offered by network operators and third-party service providers such as multimedia contents. The performance of LBS systems is directly affected by each component forming its architecture. Firstly, the end-user mobile device is still experiencing a lack of enough storage, limitations in CPU capabilities and short battery lifetime. Secondly, the mobile wireless network is still having problems with the size of bandwidth, packet loss, congestions and delay. Additionally, in spite of the fact that GPS is the most accurate navigation system, there are still some issues in micro scale navigation, mainly availability and accuracy. Finally, LBS server which hosts geographical and users information is experiencing difficulties in managing the huge size of data which causes a long query processing time. This paper presents a technical investigation and analysis of the performance of each component of LBS system for pedestrian navigation, through conducting several experimental tests in different locations. The results of this investigation have pinpointed the weaknesses of the system in micro-scale environments. In addition, this paper proposes a group of solutions and recommendations for most of these shortcomings.

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Section: Delaymentioning

confidence: 99%

Section: Gps Performance Issuesmentioning

confidence: 99%

Location-Based Services (LBS) in Micro-Scale Navigation

حنيتي

Alnabhan

Sedoyeka

2009

International Journal of E-Services and Mobile Applications

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The LBS System Based on BREW Platform

Liu

2009

2009 International Conference on Environmental Science and Information Application Technology

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The Impact of Zoning Concept on Data-Flow Management within LBS System Components

Almasri

Hunaiti

2010

International Journal of Handheld Computing Research

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Typical Location Based Services (LBS) system is compound of a mobile device with positioning capability connected to a LBS service provider via wireless network. Thus, the efficiency of LBS System depends on each sub-element composing its architecture. One of the most important factors affecting LBS efficiency is the volume of data streamed from the server to the client. This problem has emerged as a consequence of customer demands for richer services such as videos and high-quality pictures. Therefore this paper discusses the impacts of transmitting huge size of information and services on: the mobile devices, wireless networks and the data server. In addition, it introduces a mechanism to improve the data flow based on the zoning concept in which data is organised in individual databases and then streamed gradually according to the end user’s new location. The outcome of the evaluation of this mechanism has shown better utilisation of the mobile device resources (memory and battery) as well as reducing the network and server consumption time.

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Zone-based update mechanism for Location Based Services (LBS)

Cited by 3 publications

References 5 publications

Location-Based Services (LBS) in Micro-Scale Navigation

Location-Based Services (LBS) in Micro-Scale Navigation

The LBS System Based on BREW Platform

The Impact of Zoning Concept on Data-Flow Management within LBS System Components

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