Improving QoS in 4G network during handoff by using fuzzy logic based more precision handover algorithm (FMPHA)

摘要

As mankind is developing in every phase of its existence, so does the wireless communication technology and its need. In this paper, an attempt to reduce ping pong effect which initiates numerous unnecessary handovers 4G networks is carried out. Ping pong effect is a severe issue in LTE/ LTE-A since it causes loss of data and power (both of UE and of eNB) and results in a hike in data management cost. This happens when a UE moves alternatively among two or more eNBs causing the data link to switch to and fro. Hence an attempt to reduce this numerous execution of HO before it reaches its completion phase is done. An algorithm named Fuzzy logic based More Precision Handover algorithm (FMPHA) is introduced. The tool that solved fuzzy trials is none other than Fuzzy Inference Tool (FIS) of MATLAB. A study of QoS aware during X2 interface based handover (i.e. horizontal handover) in LTE/LTE-A networks is propounded. An introduction to ping pong effect, which causes numerous unnecessary handovers, reasons for its occurrence, its consequences and possible approaches to solve it are also presented. The proposed work and its comparison with FPEHS is shown. The simulation is done in Fuzzy Inference Tool of MATLAB.