Mobility sensitive algorithm for vertical handovers from WiMAX to WLAN

Janevski, Toni; Jakimoski, Kire

doi:10.1109/telfor.2012.6419155

Cited by 8 publications

(7 citation statements)

References 8 publications

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“…The speed based vertical handover algorithm [6][7][8] defined a speed threshold for WLAN. The MT performs handover to WLAN if and only if the traveling speed is lower than the predefined threshold.…”

Section: Related Workmentioning

confidence: 99%

“…The MT performs handover to WLAN if and only if the traveling speed is lower than the predefined threshold. The authors in [6][7][8] defined WLAN speed threshold at 5 m/s and below. In [9,10], authors presented a Fuzzy based handover algorithm with the If-Else rule, "If MT speed is low then WLANreject is low; otherwise WLAN-reject is high".…”

Section: Related Workmentioning

confidence: 99%

“…The r and s values can be determined by using logdistance path loss model [16]. The distance r is calculated by using Equation (7). 7s Proceeding of EECSI 2018, Malang -Indonesia, 16-18 Oct 2018 where d0 is the reference distance, PTX represents AP transmit power, PLo is the power loss at Po, denotes measured received signal strength (RSS) at point PIn, n is the path loss exponent (usually 2 to 4 depending on transmission environment), and ε is a zero-mean Gaussian random variable caused by shadow fading.…”

Section: (6)mentioning

confidence: 99%

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A New Method for Minimizing the Unnecessary Handover in High-Speed Scenario

Yew¹,

Satria²,

Illahi³

2018

EECSI

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The application of Wireless Local Area Network (WLAN) is limited to indoor or pedestrian walking speed environment because the small WLAN coverage will lead to the growth of unnecessary handover rate in high-speed scenario. The previously proposed traveling distance prediction based handover methods assumed mobile terminal (MT) travels at a constant speed is impractical as most of the MTs may not be traveling at constant speed in real environment. These methods have poor performance in case of acceleration because MT will leave the network earlier than the estimated time. In this paper, a new traveling distance prediction based handover scheme that is aware of MT's speed changes is proposed to overcome the limitation of the existing methods. The proposed scheme is adapted to the MT velocity and acceleration or deceleration rate. The numerical result shows that the performance of the proposed scheme is better than the existing handover methods in high-speed scenario. It keeps the probability of unnecessary handover within the user acceptable level in high-speed scenario.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Section: (6)mentioning

confidence: 99%

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A New Method for Minimizing the Unnecessary Handover in High-Speed Scenario

Yew¹,

Satria²,

Illahi³

2018

EECSI

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“…The application of WLAN is restricted to static or pedestrian navigation environment [27]. For example, authors in [21,[28][29][30] predefined the speed threshold for WLAN at 10m/s and below (depending on the radius of WLAN). In addition, Fuzzy MADM based handover algorithm presented by [25] and [31] set the fuzzy if-else rule, "if MT velocity is low then the probability of rejecting WLAN is low; else the probability of rejecting WLAN is high".…”

Section: Vertical Handover In Heterogeneous Networkmentioning

confidence: 99%

A Vertical Handover Management for Mobile Telemedicine System using Heterogeneous Wireless Networks

Yew¹,

Supriyanto²,

Satria³

et al. 2016

ijacsa

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Abstract-Application of existing mobile telemedicine system is restricted by the imperfection of network coverage, network capacity, and mobility. In this paper, a novel telemedicine based handover decision making (THODM) algorithm is proposed for mobile telemedicine system using heterogeneous wireless networks. The proposed algorithm select the best network based on the services requirement to ensure the connected or targeted network candidate has sufficient capacity for supporting the telemedicine services. The simulation results show that the proposed algorithm minimizes the number of unnecessary handover to WLAN in high speed environment. The throughput achieved by the proposed algorithm is up to 75% and 205% higher than Cellular and RSS based schemes, respectively. Moreover, the average data transmission cost of THODM algorithm is 24% and 69.2% lower than the Cellular and RSS schemes. The proposed algorithm minimizes the average transmission cost while maintaining the telemedicine service quality at the highest level in high speed environment.

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“…Handover performance of WiMAX's user inside HAPS system is evaluated in this contribution. There are some studies related to HO of the user in WiMAX system [4]- [6]. Additionally, we investigated effect of platform displacement to the performance of HO [3].…”

Section: Introductionmentioning

confidence: 99%

Platform displacement impact on mobile WiMAX handover performance over HAPS cannel

Mellyssa

Iskandar

2015

2015 1st International Conference on Wireless and Telematics (ICWT)

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High Altitude Platform Station (HAPS) is one of a new infrastructure in telecommunication, which is like airship or aircraft that is placed on the stratosphere. The distance of platform is about 17-22 km from the earth's surface. However, in its application HAPS that placed on the stratosphere layer of air is affected by the wind gusting. Position HAPS can change from the normal state that is called Platform Displacement. In this research discuss about platform displacement impact that experienced by the mobile station (MS) during the handover (HO) process. User is mobile WiMAX user who is using VoIP communications services. Performance of the system is calculated by some parameters value, there are throughput, data dropped, and HO (handover) delay. System will be simulated using simulator OPNET Modeler 14.5. In the simulation results can be seen the influence of platform displacement and speed of the user. When platform moves to the higher altitude will increase the area of cells coverage so that each cell can interfere its neighbor cells, especially in the transition region where MS do HO process. This condition can disturb HO process and increase data dropped during HO process.

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Mobility sensitive algorithm for vertical handovers from WiMAX to WLAN

Cited by 8 publications

References 8 publications

A New Method for Minimizing the Unnecessary Handover in High-Speed Scenario

A New Method for Minimizing the Unnecessary Handover in High-Speed Scenario

A Vertical Handover Management for Mobile Telemedicine System using Heterogeneous Wireless Networks

Platform displacement impact on mobile WiMAX handover performance over HAPS cannel

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