So two functions are mainly defined,namely,sleep mode operation and handover procedure.The sleep mode operation can decrease the energy consuming and the usage of the air interface resources.Handover can support the continuity of services,when the ralph lauren polo shirts Mobile Station (MS) moves from a Base Station(BS) to another BS or the link quality falls because of interference.The mobility management in the IEEE 802.16j standard is more complicated than the Lacoste Polo Shirts standard because of RS.The existing mobility managements are passive mostly,which just following the track of subscriber and managing the link between MS and network.This can't meet the need of the quickly developing modern networks.First,the sleep mode operation and handover defined in Lacoste Polo Shirts are introduced briefly in this thesis.Then the performance of the sleep mode operation is analysed.In order to achieve better performance,the modification based on RS sleep mode and handover are focused on Lacoste Shirts.The initiative mobility management is carried out by forecasting the traffic of network and the MS movement.My work is descriped as follows:1.The system model base on the Power Saving Classes of typeⅠin chi hair straightener standard is built using statistics,considering both the pulink and downlink traffic.The simulation on the analytical results by MATLAB are given and the influence of parameters on average energy consumption and average frame delay is analyzed.
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