An approach to energy efficient vertical handover technique for heterogeneous networks (original) (raw)

An energy efficient vertical handover decision algorithm

2014 IEEE Globecom Workshops (GC Wkshps), 2014

As wireless communications evolve towards heterogeneous networks, mobile terminals have been enabled to handover seamlessly from one network to another. At the same time, the continuous increase in the terminal power consumption has resulted in an ever-decreasing battery lifetime. To that end, the network selection is expected to play a key role on how to minimize the energy consumption, and thus to extend the terminal lifetime. Hitherto, terminals select the network that provides the highest received power. However, it has been proved that this solution does not provide the highest energy efficiency. Thus, this paper proposes an energy efficient vertical handover algorithm that selects the most energy efficient network that minimizes the uplink power consumption. The performance of the proposed algorithm is evaluated through extensive simulations and it is shown to achieve high energy efficiency gains compared to the conventional approach.

Efficient Algorithm for Vertical Handover in Heterogeneous Wireless Mobile Network

VAWKUM Transactions on Computer Sciences, 2017

This paper present the new idea of Vertical handover for heterogeneous Wireless Networks, based on different parameters values i.e, available Bandwidth, received signal strength, mean number of request per unit time. Also other parameters such as mean number of calls served per unit time, power deception, power consumption, network condition and duration for mobile station to present in network are observed. Three network selected for the handover, the vertical handover is take place at best resulted network between the available networks. In this article, provoked with facts and figure which done by vertical handoff procedure on mobile nodes but the crucial parameters which is battery power may also consider highly for certain mobile nodes, call blocking probability of networks are define to make decision for network with good quality, for the proposed algorithm experiment results are shown between the available networks and parameters, graphically illustrate the vertical handover to the specific network.

Vertical Handover Decision Algorithm for Heterogeneous Cellular-WLAN Networks

MACRo 2015, 2015

Multi-access and heterogeneous wireless communications are considered to be one of the solutions for providing generalized mobility, high system efficiency and improved user experience, which are important characteristics of the Next Generation Networks. This paper proposes a Vertical Handover (VHO) decision algorithm for heterogeneous network architectures which integrate both cellular networks and Wireless Local Area Networks (WLANs). The cellular-WLAN and WLAN-WLAN VHO decisions are taken based on parameters which characterize both the coverage and the traffic load of the WLANs. Computer simulations performed in complex scenarios show that the proposed algorithm ensures better performance compared to “classical” VHO decision algorithms.

Design an Algorithm for Vertical Handover Strategies in Heterogenous Wireless Network

2018

A heterogenous wireless network consists of different wireless access standards. To transfer data seamlessly vertical handoff (VHO) plays a major role. Seamless continuity is the main goal in 4G wireless networks. When a mobile terminal is in overlapping area, for service continuity handoff mechanism is mainly used while moving in heterogenous wireless networks. Vertical Handoff decision (VHO) is based on received signal strength (RSS) signals. While taking VHO decision, user mobility is an important factor. VHO is required only at lower speeds and higher speed user velocity may cause unnecessary handovers that can reduce system capacity and Qos level. UE velocity makes the HO decision, we can reduce the transmission cost and transmission time. Wireless access standards: Wi-Fi, Wimax, LTE. This algorithm is simulated in NS2 and its performance is evaluated in terms of user velocity and handover numbers. This approach leads to improvements in the end user experience. IndexTerms–Heter...

Efficient Power Saving during Handovers in Heterogeneous Network Scenario.

International Journal of Engineering Sciences & Research Technology, 2013

The Next Generation of wireless networks will provide ubiquitous computing by the seamless operation of heterogeneous wireless networks. It will integrate the current co-existing wireless networks to allow the users to connect to the network that best suits their needs. The next generation wireless networks are characterized by anywhere, anytime connectivity, enhanced data services and higher data rates to end-users. This infrastructure will also support efficient handovers. Heterogeneous networks aim to achieve this. To facilitate new services, and make them flexible and bandwidth efficient, vertical roaming of mobile nodes is a tempting possibility for operators. Our project deals with reduction of power consumption during handovers. If the user call is based on previous history, the handover takes place without calculations and we have achieved a power saving of 28.38%. Also our proposed algorithm tries to select an appropriate target network for handover which will support the battery power of MN with its ongoing application if the call is not regular.

Design an Algorithm for Vertical Handover In Heterogeneous Network

2014

A heterogeneous network is consisting of different wireless access standards. For seamless data transfer a vertical handoff (VHO) plays a major role. Vertical Handoff decision (VHO) is totally based upon Received Signal Strength (RSS) measurements. Handoff (HO) decision is made individually without considering other HO user equipments (UE). User mobility is a factor, which having important role in VHO decision. VHO is required only at lower speeds and high speed user velocity may cause unnecessary handovers that can degrade system capacity and QoS level. UE velocity make a HO decision, we can reduce the transmission cost and transmission time. Because of high bandwidth and ease of networking we consider the wireless access standards: Wi-Fi and Wi-max and LTE system. The algorithm is simulated in NS2 and the performance of the network is evaluated in terms of user velocity and handover numbers.

Application Based Handover: An Energy-Efficient Approach for Heterogeneous Networks

2013 IEEE 16th International Conference on Computational Science and Engineering, 2013

Energy efficiency in cellular and wireless networks is among the major concerns of the industry. This is of particular significance for some rural areas and for developing countries. Obviously, in such situations, preserving power by using green technologies can offer great benefit. In this work, we focus on improving the energy efficiency of an advanced heterogeneous network architecture. This architecture is a promising paradigm for increasing the capacity and coverage of existing networks. In this paradigm, through vertical handover, mobile clients or terminals are switched between various wireless communication technologies. The choice of the communication technologies is based on a QoS measure that combine application based effects with those related to network parameters. The power consumption of the terminal is a function of the utilized vertical handover approach. In this paper, we propose an applicationbased vertical handover framework to reduce the battery power consumption of the mobile terminal. We have conducted the partial simulation of the whole framework. The simulation studies show that this approach has the potential capability of improving energy efficiency of the network by minimizing the continuous scanning process of the terminal.

VIKOR MADM Based Optimization Method For Vertical Handover In Heterogeneous Networks

Advances in systems science and applications, 2018

Optimum network selection is one of the major issues for vertical handover in heterogeneous networks so as to provide requisite quality of service (QoS) to the user. In this context, multiple attribute decision-making algorithms provide a promising solution. Normalization process used can play a vital role in selecting the most appropriate network during the handover process.In this work, vector normalized preferred performance based (V-VPP) normalization technique is proposed and applied to MADM based VIKOR algorithm. Performance of the proposed technique is analyzed extensively by varying QoS parameters and weighting methods for different traffic classes in a heterogeneous network The results obtained are compared with the available MAX, MAX-MIN and Vector normalization.The proposed method is also compared with the popular MADM algorithms. Performance of proposed method is quite optimistic in terms of lesser number of handovers, ranking abnormality, selection of appropriate netwo...

Vertical handoff algorithm for different wireless technologies

Transferring a huge amount of data between different network locations over the network links depends on the heterogeneous wireless network. Such a network consists of several networks with different access technologies. Traditionally, a mobile device may be moved to achieve the operations of vertical handover, considering only one criterion, that is, the received signal strength (RSS). The use of a single criterion may cause service interruption, an unbalanced network load, and an inefficient vertical handover. In this paper, we propose enhanced vertical handover decision algorithm based on multiple criteria in the heterogeneous wireless network. The algorithm consists of three technology interfaces: Long-Term Evolution (LTE), Worldwide interoperability for Microwave Access (WiMAX), and Wireless Local Area Network (WLAN). It also employs three types of the vertical handover decision algorithms: equal priority, mobile priority, and network priority. The simulation results illustrate...

Performance Improvement of Seamless Vertical Handover in Heterogeneous Wireless Network

For the development of the wireless networks the design of seamless and efficient vertical handover is an essential issue. Next generation wireless communications will likely rely on integrated networks consisting of multiple wireless technologies. So the integration of vertical handovers with other wireless technologies, such as WLAN, WiFi, WiMAX, UMTS or 3G, has attracted research community for the last few years. With the recent introduction of mobility management frameworks in the IEEE 802.16e standard, the performance largely depends on the capability of performing fast and seamless handover between heterogeneous networks. Seamless vertical handover between different access technologies is a great challenge as it needs to obey different performance constraints. In this paper, we proposed a new algorithm that has better performances compared with other algorithms. Our new proposed approach provides better performance and more exhaustive for enhancing VHO.