Location Aware Fast Handover Between WiMAX and WiFi Networks
01 Jan 2010-
TL;DR: A location aware fast handover technique for vertical handover between WiMAX and WiFi networks is proposed to minimize target network detection delay, select proper target network for handover and eliminate a Ping-Pong effect.
Abstract: Next generation mobile communications will rely on integrated networks consisting of multiple wireless access technologies such as WiFi, WiMAX, GSM and UMTS. With a variety of access technologies, mobile users want to take diverse advantages without any disruption when they move from one place to another. Seamless handover between homogeneous or heterogeneous wireless access networks will be a key to providing mobile users with required QoS. To achieve seamless handover in a vehicular environment, total handover delay must be very short. This paper proposes a location aware fast handover technique for vertical handover between WiMAX and WiFi networks to minimize target network detection delay, select proper target network for handover and eliminate a Ping-Pong effect. The proposed technique aims to reduce the total handover latency and can be applied to realize seamless handover between WiMAX and WiFi networks.
Citations
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TL;DR: The goal of this survey paper is to present the basic characteristics of V2I communication in heterogeneous multi-tier network environments.
75 citations
08 Aug 2016
TL;DR: A novel network selection mechanism for improved handover performance in V2I communication over heterogeneous wireless network is proposed for vehicles to self-evaluate a candidate list of access points that are located in the vehicle movement direction and select the best underlying candidate network based on key criteria.
Abstract: The commercial deployment of 5G networks require heterogeneous multi-tier, multiple radio access technologies (RATs) to support vehicle-to-infrastructure (V2I) communication with diversified services. Vehicles may need to cross a number of heterogeneous networks of various sizes before reaching the destination. Due to high-speed travel, vehicles may quickly move in and out of the network coverage areas while performing handover. Fast and efficient selection of an appropriate underlying network is critical for seamless handover performance. In this paper we propose a novel network selection mechanism for improved handover performance in V2I communication over heterogeneous wireless network. The idea is for vehicles to self-evaluate a candidate list of access points (AP) that are located in the vehicle movement direction and select the best underlying candidate network based on key criteria, like, the distance between target candidate and the trajectory of the vehicle movement as well as the vehicle mobility information. Fuzzy logic inference system is used to decide whether a target candidate is suitable for handover. Experimental results show that for a vehicle moving at 30km=h, an AP of 100m radius should be located at less than 30m from the road, while this distance is limited to 15m when the vehicle speed is 60km/h.
19 citations
Cites background from "Location Aware Fast Handover Betwee..."
...The recent search presented in [5,7-9] have focused on devising mobility aware network selection techniques, where the direction of movement and node residence time are the most influential decision factors....
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...Presumably, the macro-cell network is assumed to be available anywhere, anytime and thus, a vehicle connected to the macro cell, can perform handover to a small cell without, apparently, running at a risk of losing the existing connectivity before the completion of the handover [5]....
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TL;DR: This research has proposed a ranking algorithm to rank heterogeneous networks based on a set of parameters including user profile and QoS, and shown that the proposed scheme has successfully satisfied apparently the contradictory requirements related to user profiles andQoS simultaneously.
9 citations
18 Mar 2016
TL;DR: AODV protocol is used to calculate the lost packet rate and assess the performance of intra system handover and inter system hand over between WiFi and WiMAX and can create a wireless solution which can provide efficient speed and coverage for mobile users.
Abstract: To provide user with seamless roaming and service continuity are some of the prime challenges of future wireless access networks. Therefore there is a need to combine various wireless access technologies so that user gets non interrupted service. In the present time there are various wireless technologies such as WiFi which allow the user to stay on always and also provide seamless connectivity to the internet. But WiFi has some limitation as its range is limited. On the other hand WiMAX is comparatively novel but provides the coverage of Universal Mobile Telecommunication System and speed of WiFi. Thus by combining Wifi and WiMAX we can create a wireless solution which can provide efficient speed and coverage for mobile users. In this context handover is an important procedure which defines the switching between the two networks. In this paper we use AODV protocol to calculate the lost packet rate and assess the performance of intra system handover and inter system handover between WiFi and WiMAX.
7 citations
Cites methods from "Location Aware Fast Handover Betwee..."
...Guo, Tsutomu Tsuboi, Jinyun Zhang [2] “Location Aware Fast Handover between WiMax and WiFi Networks”, in this paper achieve total handover delay is very short using a location aware fast handover technique....
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01 Jan 2017
TL;DR: This work proposes a mobility-aware network selection method in a multi-tier network where an LTE-A user equipment (UE) can self-select a suitable target network for handover depending on the direction of its mobility, its dwelling time within the coverage area of a network and the received signal strength from the base station or Evolved Node B (eNB) of anetwork.
Abstract: The Long Term Evolution-Advanced (LTE-A) is a promising technology to support vehicular communication. In an LTE-A multi-tier network, macro cell networks can overlay multiple small cell networks of different sizes, such as femto and pico, to improve the overall capacity and quality of service. However, multi-tier networks can result in frequent unwanted handover activities, unnecessary scanning of small cell networks and reduced throughput leading to a degradation of the overall network performance. Here we propose a mobility-aware network selection method in a multi-tier network where an LTE-A user equipment (UE) can self-select a suitable target network for handover depending on the direction of its mobility, its dwelling time within the coverage area of a network and the received signal strength from the base station or Evolved Node B (eNB) of a network. Simulation results show that our method can improve the network packet delivery ratio by 20% and reduce the end-to-end delay by 14%.
7 citations
Additional excerpts
...However, it is possible to deal with these issues by if the node could appropriately select the most ideal network (e.g., the candidate eNB) amongst all the neighbouring networks (e.g., neighbouring eNBs) for the future handover activity....
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References
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01 Jan 2005
2,671 citations
"Location Aware Fast Handover Betwee..." refers background in this paper
...Manager, Mitsubishi Electric Research Laboratories 201 Broadway, 8th Floor, Cambridge MA 02139, USA 1-617-621-7595, jzhang@merl.com...
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...Copyright c©Mitsubishi Electric Research Laboratories, Inc., 2010 201 Broadway, Cambridge, Massachusetts 02139 MERLCoverPageSide2...
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01 Aug 1996
TL;DR: This document specifies the steps a host takes in deciding how to autoconfigure its interfaces in IP version 6.0, including creating a link-local address and verifying its uniqueness on a link, and determining what information should be autoconfigured.
Abstract: This document specifies the steps a host takes in deciding how to autoconfigure its interfaces in IP version 6. The autoconfiguration process includes creating a link-local address and verifying its uniqueness on a link, determining what information should be autoconfigured (addresses, other information, or both), and in the case of addresses, whether they should be obtained through the stateless mechanism, the stateful mechanism, or both. This document defines the process for generating a link-local address, the process for generating site-local and global addresses via stateless address autoconfiguration, and the Duplicate Address Detection procedure. The details of autoconfiguration using the stateful protocol are specified elsewhere.
1,243 citations
TL;DR: The main seamless mobility principles are identified and used as the basis for further evaluating the potential of the IEEE 802.21 standard to meet the requirements of applications for minimum disruption during an inter-technology handover.
Abstract: The performance of current Internet applications is based mainly on the capabilities of the underlying network technologies. Modern access systems usually can satisfy delay, loss, or bandwidth requirements; however, design inconsistencies can lead to service degradation as the terminals move across different systems. In this article, the focal point is the satisfaction of service requirements during mobility and more specifically, how the emerging IEEE 802.21 standard enables seamless, inter-technology handover. Based on prior work and a well-known example of seamless mobility, the main seamless mobility principles are identified and used as the basis for further evaluating the potential of the IEEE 802.21 standard to meet the requirements of applications for minimum disruption during an inter-technology handover.
216 citations
TL;DR: A location-based approach that reduces handoff overhead in IEEE 802.11 networks and identifies the prospective access points most likely to be visited next, using the current location and the AP topology information acquired from some designated server.
Abstract: This paper presents a location-based approach that reduces handoff overhead in IEEE 802.11 networks. With this approach, a mobile station (MS) can derive the prospective access points (APs) most likely to be visited next, using the current location and the AP topology information acquired from some designated server. The server also provides parameters for AP (re)association so that the MS can re-associate with an AP directly without a probe beforehand. Further along the movement orientation, the MS can resolve a likely set of APs for preauthentication or proactive key distribution purposes. The performance evaluation indicates that our approach is promising.
95 citations
Additional excerpts
...Senior Manager, Renesas Technology Corp. Nippon Bldg. 2-6-2, Ote-machi, Chiyoda-ku, Tokyo 100-0004, Japan 81-3-5201-5063, tsuboi.tsutomu@renesas.com...
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TL;DR: A spatiotmporal approach is developed in this paper to utilize a spatiotemporal graph for making accurate handoff decisions by correctly searching for the next access point to further reduce the probe delay for IEEE-802.11-based WLANs.
Abstract: The IEEE 802.11 standard has enabled low-cost and effective wireless local area network (WLAN) services. It is widely believed that WLANs will become a major portion of the fourth-generation cellular system. The seamless handoff problem in WLANs is a very important design issue to support the new astounding and amazing applications in WLANs, particularly for a user in a mobile vehicle. The entire delay time of a handoff is divided into probe, authentication, and reassociation delay times. Because the probe delay occupies most of the handoff delay time, efforts have mainly focused on reducing the probe delay to develop faster handoff schemes. This paper presents a new fast handoff scheme (i.e., the DeuceScan scheme) to further reduce the probe delay for IEEE-802.11-based WLANs. The proposed scheme can be useful to improve wireless communication qualities on vehicles. A spatiotemporal approach is developed in this paper to utilize a spatiotemporal graph to provide spatiotemporal information for making accurate handoff decisions by correctly searching for the next access point. The DeuceScan scheme is a prescan approach that efficiently reduces the layer-2 handoff latency. Two factors of stable signal strength and variable signal strength are used in our developed DeuceScan scheme. Finally, simulation results illustrate the performance achievements of the DeuceScan scheme in reducing handoff delay time and packet loss rate and improving link quality.
93 citations