A new approach to the design of MAC protocols for wireless LANs: combining QoS guarantee with power saving

摘要

An alternative WLAN protocol which could beudadapted in the HCF access scheme defined by IEEE 802.11e, inudplace of the HCCA mechanism, is introduced. LEPOAC-QG (LowudEnergy Priority Oriented Adaptive Control with QoS Guarantee)udis a centralized access mechanism that supports low energyudconsumption, guarantees QoS for all types of multimedia networkudapplications, enhances the parameterized traffic with priorities,udand supports time division access. It instantly negotiates theudquality levels of the traffic streams trying to support multipleudstreams with best possible quality. LEPOAC-QG, compared withudHCCA, exhibits generally superior performance.