A Vertical Handover Management Scheme based on Decision Modelling in Heterogeneous Wireless Networks

Abstract

Providing a continuous connection in heterogeneous wireless networks is a challenging job. Traditional approaches are mainly concerned to specific scenarios. These approaches are also suffering from different problems like ping-pong effect, inappropriate handover triggering, etc. Therefore, to provide a generic connectivity in heterogeneous wireless networks, we proposed a vertical handover decision scheme. The proposed scheme performs handover triggering using simple additive weighting on the data rate of a point of attachment (PoA). The user calculates the data rate required by different applications and then compares it with a predefined threshold. Similarly, the network selection is performed using Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) decision model on different parameters such as delay, jitter, bit error rate, packet loss ratio, communication cost, response time, and network load. The PoA of a network calculates its rank using TOPSIS and sends it to the user. The user then selects the network with the highest rank. The proposed vertical handover decision scheme is compared with grey relational analysis and analytical hierarchy process in the context of handover rate, failed handovers, packet loss ratio, and throughput. The proposed scheme is tested in different mobility scenarios, and it is shown that our scheme provides superior performance over the existing schemes.

A hybrid intelligent model for network selection in the industrial Internet of Things

“…Based on these parameters, the highest-ranked network is chosen. In terms of mobile communications, these techniques could be utilized to consolidate the information received during the network discovery stage to rank all the available candidate networks wisely according to the present requirements of the application [68]. The basic concept of the TOPSIS method is that the chosen alternative should have the shortest distance from the positive ideal solution and the farthest distance from the negative ideal solution.…”

An analytical solution based on mobility and multicriteria optimization for access selection in heterogeneous environment

“…Wang and Kuo [14] provided various mathematical models and theories such as utility theory, fuzzy logic and game theory in order to achieve the optimization between accuracy and complexity in network selection problems. Khan and Han [15] proposed a VHD scheme to provide a generic connectivity in heterogeneous wireless networks. A simple additive weighting method is used to evaluate the available networks and the Technique for Order of Preference by Similarity to Ideal Solution model is used for network selection, considering the parameters such as delay, data rate, bit error rate and packet loss ratio.…”

Handover based on a predictive approach of signal‐to‐interference‐plus‐noise ratio for heterogeneous cellular networks

“…Adapting the start of the handover is a strategy to reduce handover failures or ping‐pong handovers as presented in [10–14]. However, these works do not simultaneously address the reduction of handover failures and ping‐pong handovers.…”