Trade-offs in Rate Control with Communication Delay

Delay, Elasticity, and Stability Trade-Offs in Rate Control

We adopt the optimization framework for rate allocation problem proposed by Kelly and characterize the stability condition with arbitrary communication delay. We demonstrate that there is a fundamental trade-off between the price elasticity of demand of users and responsiveness of the resources through a choice of price function as well as between the system stability and resource utilization.

Ethical Perspective: Five Unacceptable Trade-offs on the Path to Universal Health Coverage

This article discusses what ethicists have called “unacceptable trade-offs” in health policy choices related to universal health coverage (UHC). Since the fiscal space is constrained, trade-offs need to be made. But some trade-offs are unacceptable on the path to universal coverage. Unacceptable choices include, among other examples from low-income countries, to expand coverage for services wit...

Exploring Energy-Performance Trade-Offs for Heterogeneous Interconnect Clustered VLIW Processors

Clustered architecture processors are preferred for embedded systems because centralized register file architectures scale poorly in terms of clock rate, chip area, and power consumption. Although clustering helps by improving clock speed, reducing energy consumption of the logic, and making design simpler, it introduces extra overheads by way of inter-cluster communication. This communication ...

A Tradeoff Between Data Rate and Regulation Performance in Networked Data Flow Control

The report investigates fundamental trade-offs related to the static regulation performance in networked control systems with delay and saturation in the feedback loop. The trade-offs are a consequence of required L2-stability of the networked system, in the limit where the delay tends to infinity. First a relation between the relative static regulation accuracy and the static gain of the part ...

On Throughput-Delay Trade-offs in Streaming Communication