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In this paper, we proposed a unified multi-corner multi-mode (MCMM) static timing analysis (STA) engine that can efficiently compute the worst-case delay of the process corners in various very large scaled circuits. Our key contributions include: (1) a seamless integration of the path-and parameter-based branch-and-bound algorithms so that the engine is very robust for different kinds of circuits,...
We introduce a bound-based technique to identify the top M timing-violating paths in a circuit under variability. These are the paths with the highest violation probability (i.e., Cp) which is the probability that a path (i.e., p) violates the timing constraint. To compute Cp, we require the violation probabilities of the nodes (i.e., Cn) and edges (i.e., Ce) on the path. First, we show computing...
Li and Xia have recently investigated the design of space-time codes that achieve full spatial diversity for asynchronous cooperative communications. They show that certain of the binary space-time trellis codes derived from the Hammons-El Gamal stacking construction are delay tolerant and can be used in the multilevel code constructions by Lu and Kumar to produce delay tolerant space-time codes for...
This paper addresses adaptive channel estimation for time-varying mobile wireless channels with nonstationary statistics. We presents a reduced complexity adaptive channel estimator based on a set membership filtering approach known as the Optimal Bounding Ellipsoid (OBE) algorithm. To exploit time and frequency domain correlation properties of the channel in an efficient low-complexity way, we allow...
This paper summarizes some rather extensive research on the problem of constructing logic nets out of elements whose timing causes trouble either in their slowness or in their lack of precision. The problem is made precise by setting up a theory of logic nets that is abstract but realistic. Its abstractness consists in its lack of similarity to any particular hardware, and in its strictly mathematical...
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