Multiclass Priority Fair Queuing for Hybrid Wired/Wireless Quality of Service Support

The widescale deployment of packetized wireless network services currently lacks a mechanism to provide QoS in the framework of existing backbone networks. This paper describes a wireless scheduling algorithm that can provide QoS bounds to ATM traffic. It transforms the standard ATM traffic classes into parameters for a priority, fair queuing algorithm, implemented at the wireless MAC layer. By supporting existing ATM traffic, the scheduler avoids the need to redefine QoS specifically for the packetized wireless channel. Bounds are derived for delay and throughput on the individual CBR and rt-VBR virtual connections

Energy-efficient wireless communication

In this chapter we present an energy-efficient highly adaptive network interface architecture and a novel data link layer protocol for wireless networks that provides Quality of Service (QoS) support for diverse traffic types. Due to the dynamic nature of wireless networks, adaptations in bandwidth scheduling and error control are necessary to achieve energy efficiency and an acceptable quality of service. In our approach we apply adaptability through all layers of the protocol stack, and provide feedback to the applications. In this way the applications can adapt the data streams, and the network protocols can adapt the communication parameters