Abstract
Providing complete mobility along with minimizing the poor quality of service (QoS) is one of the highest essential challenges in mobile wireless networks. Handover prediction can overcome these challenges. In this paper, two novel prediction schemes are proposed. The first, depends on scanning the quality of all signals among mobile station and all nearby stations in the surrounding area, while the second one is based on a multi-criteria prediction decision using both the signal-to-noise ratio SNR value and station’s bandwidth. Moreover, the prediction efficiency is improved by reducing the number of redundant/ unnecessary handovers. The proposed schemes are evaluated using different scenarios with several mobile stations’ numbers, different WLAN access points, LTE-base station number & location, and random mobile station movement manner. The proposed schemes achieved a success rate of 99% with the different scenarios using LTE-WLAN architecture. The performance of the proposed prediction schemes outperformed the performance of the existing prediction schemes in terms of the accuracy percentage.
Highlights
In the mobile environment, all users simultaneously should get full mobility while preserving the quality of service (QoS) where users ‘mobility significantly affects the QoS
In each sub-area, different access point (AP) and different Mobile Station (MS) with various speeds and locations are used in our simulation
Two novel vertical handover prediction schemes based on channel features are proposed in this paper
Summary
All users simultaneously should get full mobility while preserving the QoS where users ‘mobility significantly affects the QoS. Mobile Station (MS) must update the Base Station (BS) they are to be connected during its user movement. The execution of this process is called “handover”. MS always need to scan its surrounding users and to observe all nearby stations’ parameters such as the quality of the signal or the delay in the packet transfer to be able to execute the handover process accurately. The MS should execute the handover process to keep a continuous data transfer. It always compares the signal parameters of the nearby serving stations with a predefined level. If the parameters of the serving station’ signal descend under these predefined values, the handover process begins to guarantee the required QoS [1]
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