Absfract -Signal sets are identified that maximize the cutoff rate region for a multiple-access channel with an additive white Gaussian noise, in which the demodulator output alphabet is allowed to he infinite (“infinitely soft decisions”). The optimizing designs consist of a simplex signal set for each sender, such that each sender’s set is orthogonal to those of the other senders. For “second...

We show how to construct an accelerator lattice cell that minimizes all intrinsic spin resonances. then apply this approach various toy electron and proton accelerators, considering, AGS-booster, AGS-like CEPC/FCC-ee, FCC-hh-like rings.

The structure-material integrated design is an art-of-state concept and be enabled by additive manufacturing. lattice material classified into structure as well because mechanical properties are determined its topology. However, the lack of a flexible strategy hinders achieve candidate. This work suggests strut-nested based strategies to effectively conduct hierarchical design. strut in larger-...

This paper introduces the design and implementation of two parallel dual simplex solvers for general large scale sparse linear programming problems. One approach, called PAMI, extends a relatively unknown pivoting strategy called suboptimization and exploits parallelism across multiple iterations. The other, called SIP, exploits purely single iteration parallelism by overlapping computational c...

augmented downhill simplex method (adsm) is introduced here, that is a heuristic combination of downhill simplex method (dsm) with random search algorithm. in fact, dsm is an interpretable nonlinear local optimization method. however, it is a local exploitation algorithm; so, it can be trapped in a local minimum. in contrast, random search is a global exploration, but less efficient. here, rand...