A QoS aware power save protocol for wireless ad hoc networks
Laura Marie Feeney · 2002
This paper describes a power save protocol for ad hoc networks. The protocol is largely independent of the details of the underlying MAC and friendly toward any overlying energy-aware ad hoc routing. A key advantage of the protocol is that it is fully asynchronous. Each station independently establishes a periodic sleep/wake cycle. Neighbors that wish to communicate estimate the relative phase difference between their sleep/wake cycles. A station uses this phase information to order its pending transmissions so as to maximize value with respect to some QoS function. A station can also adjust its phase relationships to avoid contention and increase effective bandwidth available to a flow, as well as reduce latency.