Modeling and Performance Analysis of Sleep-mode with uplink/downlink traffics in IEEE 802.16e Based on Queueing Model
IEEE 802.16e is the latest broadband wireless access standard designed to support mobility. In mobile networks, how to control energy consumption is one of the most important issues for the battery-powered mobile stations. The standard proposes an energy saving mechanism that named \"Sleep-mode\" for conserving the power of the mobile stations. Considering both downlink traffics and uplink traffics, a queuing model of two servers sharing vacations with close down time and multiple inhomogeneous vacations is built in this paper.