Accurate modeling of queueing dynamics is important in the design and analysis of Internet congestion control. However, as demonstrated in this paper, existing window-based queueing models [26,30] are often not capable of precisely capturing the transient behavior (i.e., self-clocking and burstiness) of TCP-like protocols and their resulting analysis may be inaccurate in practice. As one exampl...

Feynman’s model of a quantum computer provides an example of a continuous-time quantum walk. Its clocking mechanism is an excitation of a basically linear chain of spins with occasional controlled jumps which allow for motion on a planar graph. The spreading of the wave packet poses limitations on the probability of ever completing the s elementary steps of a computation: an additional amount o...

states at circuit nodes may erroneously change. Further, BIST schemes with random test patterns may need an excessive amount of energy because of longer test length. Abstract I n a scan-based system with a large number of flip-flops, a major component of power is consumed during scanshift and clocking operation in test mode. In this paper, a novel scan-path architecture called double-tree scan ...

In this paper, we describe a new datapath scheduling algorithm called DFCS based on the concept of dynamic frequency clocking. In dynamic frequency clocking scheme, all functional units in the datapath are driven by a single clock line that switches frequency dynamically at run time. The algorithm schedules lower frequency operators at earlier steps and delays higher frequency operators to late...

Complex SoC imply the seamless integration of numerous IPs performing different functions and operating at different clock frequencies. The integration of several heterogeneous components into a single system gives rise to new challenges. Major issue includes controlling the clock frequencies of the different modules. As chips become faster and larger, designers face significant challenges incl...

The self-clocking principle (SCP) of Transmission Control Protocol (TCP) had been analyzed for a network implementing a per-flow buffering scheme. The ideal SCP is yet unknown for the Internet which implements a first-in-first-out buffering scheme. This paper derives an ideal SCP for the Internet by formulating the traffic transmission control into a typical control problem and then solving it ...