Context Aware Vertical Soft Handoff Algorithm For Heterogeneous Wireless Networks

Yang, Kemeng; Gondal, Iqbal; Qiu, Bin

doi:10.1109/vetecf.2008.272

Cited by 16 publications

(4 citation statements)

References 8 publications

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“…However, no information is provided regarding the number of handovers or HFP. Regarding Yang's algorithm [28], there is a very high value of transfers because of SINR; it also shows a very high value of throughput, up to about 40% compared to the conventional methods [29]. This study also fails to provide information regarding delay and HFP [30].…”

Section: Related Workmentioning

confidence: 80%

CSVAG: Optimizing Vertical Handoff Using Hybrid Cuckoo Search and Genetic Algorithm-Based Approaches

et al. 2022

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One of the primary challenges that wireless technology in the present generation is facing is always best connected (ABC) service. This is possible only when the wireless overlay networks follow a cooperative and coordinated process. Vertical handoff is one such process. Concerning this process, the main challenge is to develop algorithms that take care of optimal connection management with proper resource utilization for uninterrupted mobility. In this paper, we develop a new hybrid cuckoo search (CS) and genetic algorithm (GA) that maximizes the performance of heterogeneous wireless systems in terms of minimizing latency, handover failure probability, and enhancing the throughput. We focus on an optimized simulation framework to demonstrate the advantage of our hybrid model. It can be discerned from the simulation analysis that the proposed hybrid technique increases throughput by 17% and 8% compared to the cuckoo search and genetic algorithms applied individually. The performance of the proposed scheme is promising for applications wherein the handoff mechanisms have to be optimized to control frequent handoffs to further reduce the power consumption of user equipment.

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Section: Related Workmentioning

confidence: 80%

CSVAG: Optimizing Vertical Handoff Using Hybrid Cuckoo Search and Genetic Algorithm-Based Approaches

et al. 2022

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“…The calculation of system performance in this study has been evaluated with the same scenario in many studies, such as presented in [3], [13][14][15][16]. There in [3].…”

Section: Simulation Scenariomentioning

confidence: 99%

“…In this study, the VHO is triggered while the user is getting higher equivalent SINR from another access network resulting in higher throughput. This study has been developed to consider other parameter metrics to perform better VHO [13,14]. Other parameters to be considered in this study are the required bandwidth of user, user cost, maximum downlink bandwidth of each neighbour BS and AP, and network utilization.…”

Section: Introductionmentioning

confidence: 99%

Optimum Threshold for Velocity Considered-SINR Based Vertical Handoff Decision in HetNet

Widjaja

Uthansakul

2016

ECTI-EEC

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A heterogeneous network (HetNet) that consists of various wireless networks is being massively studied. Integration of the networks should be error free to achieve seamless communication. The seamless vertical handoff (VHO) remains a challenging problem in HetNet studies. Several criteria for VHO decision have been studied in the literature, such as Received Signal Strength (RSS) and Signal to Interference plus Noise Ratio (SINR). It has been shown that SINR based VHO has superior performance compare to RSS based VHO. However, there are some limitations in SINR based VHO scheme. This study aims to overcome those limitations by considering user velocity as an additional criterion for SINR based VHO decision. User velocity is represented in the value of additional SINR threshold. The basic principle of the proposed algorithm is that slow speed user should stay longer in WLAN cells and high speed user should stay longer in WCDMA cells. Simulation results show that there is a trade-off between average throughput and the number of unnecessary handoffs per call. In this study, optimum threshold is obtained when the high percentage of unnecessary handoffs reduction is reached with an acceptable value of average throughput for multimedia data transfer.

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“…However the drawbacks include packet delay that increases with the lifetime of the connectivity due to the deterioration of the channel condition as the mobile host approaches the edge of the WLAN cell and extra lookup table. Mohanty and Akyiliz's [29] calculated a dynamic RSS threshold and then it is compared with the current RSS to determine the handover time from WLAN to 3G. This proposed algorithm provides the reduction of the false handover initiation and handover failure probabilities.…”

Section: Network Conditionsmentioning

confidence: 99%

A Vertical Handover Decision Approaches in Next Generation Wireless Networks: A Survey

Bhute¹,

Karde²,

Thakare³

2014

IJMNCT

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In next generation wireless network the most desirable feature is its ability to move seamlessly over various access network regardless of the network infrastructure is used. The handover between these dissimilar networks can be explored by using vertical handover algorithms. This paper focuses on the vertical handover decision methods and algorithms effectiveness. Most of the algorithms which are based on RSS values provide vertical handover with small delay at a lower rate of throughput. There are such algorithms which provide significant improvements in throughput but at a cost of higher delays. As per the need for the real time applications in next generation wireless networks there is a requirement of developing new optimized algorithms that are able to produce high throughput and minimizing signalling cost and delay.

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Context Aware Vertical Soft Handoff Algorithm For Heterogeneous Wireless Networks

Cited by 16 publications

References 8 publications

CSVAG: Optimizing Vertical Handoff Using Hybrid Cuckoo Search and Genetic Algorithm-Based Approaches

CSVAG: Optimizing Vertical Handoff Using Hybrid Cuckoo Search and Genetic Algorithm-Based Approaches

Optimum Threshold for Velocity Considered-SINR Based Vertical Handoff Decision in HetNet

A Vertical Handover Decision Approaches in Next Generation Wireless Networks: A Survey

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