Abstract-Many power-aware resource allocation problems in packet networks can be modeled as single-server queueing systems, in which the power consumption depends on the actual service rate. We consider the scenario in which the queue service rate is controlled to minimize server power consumption. We show that power control methods that tune the service rate by using the queue length or the arrival rate exhibit a non-monotonic curve of delay vs. load. This may lead to malfunctioning in endto-end flow/congestion control protocols, which are based on the assumption that delays increase with increasing load. We propose a new policy, in which the service rate is changed while keeping almost flat the delay curve, which permits to achieve a close-tooptimal trade-off between power and delay.
To better understand the achievable tradeoff between delays and power, in REF we have recently analyzed a single queue system in which the server modifies its service rate to minimize the power consumption, while achieving maximum throughput.
Joint delay and power control in single-server queueing systems
2013 IEEE Online Conference on Green Communications (OnlineGreenComm)
2013 IEEE Online Conference on Green Communications (OnlineGreenComm)
Computer Science