Load balancing scheme research on load lead transfer of heterogeneous wireless network
Shen Honglei, Zhou Xiaoping, Tian Jiayang, Wang Jiale · DOAJ (DOAJ: Directory of Open Access Journals) · 2017
This article analyzes the lag characteristic of call arrival rate(CAR) of general vertical handoff which is the representative of simple additive weighting(SAW) in multi-attribute decision theory.It aims at the load imbalance phenomenon caused by vertical handoff for heterogeneous wireless network.Firstly,we should build the universal mobile telecommunication system/wireless local areal network(UMTS/WLAN) heterogeneous wireless network.We can use the time series to make the model of seasonal autoregressive intergrated moving average(SARIMA) so that the Call Arrival Rate can be predicted.Then,according to the Call Arrival Rate,we can lead business handoff and transfer business bandwidth in advance.Therefore,the modified time series predict SAW(TSAW) is formed.The result shows that TSAW overcomes the load delay disadvantages of simple additive weighting(SAW) and makes the network Load balancing better.