英文原版，非常好的讲解 Segment Routing (SR)的PPT。 nanog北美网络工作者小组。 AKA: SPRING • IETF Standardization – Source Packet Routing In Networking (SPRING) WG – ISIS, OSPF, IDR and MPLS WGs

An simple introduction to column generation method. Very nice!

Pizza Tutorial on nuBuilder 4.5 - nuBuilder Forum 英文文字说明和相应的源码

google_colab_tutorial

shell-tutorial.zip

一份关于56G PAM4信号的指导说明。对理解PAM4信号的性能评估很有帮助。

23种设计模式源码，此书由James W. Cooper著

A Multigrid Tutorial 2nd Edition William L. Briggs, Van Emden Henson, Steve F. McCormick

ANSYS_ICEM_CFD_11.0_Tutorial_Manual_例子教程_手册

OFDMA系统频率同步算法综述-Orthogonal frequency division multiple access (OFDMA) has recently attracted vast research attention from both academia and industry and has become part of new emerging standards for broadband wireless access. Even though the OFDMA concept is simple in its basic principle, the design of a practical OFDMA system is far from being a trivial task. Synchronization represents one of the most challenging issues and plays a major role in the physical layer design. The goal of this paper is to provide a comprehensive survey of the latest results in the field of synchronization for OFDMA systems, with tutorial objectives foremost. After quantifying the effects of synchronization errors on the system performance, we review some common methods to achieve timing and frequency alignment in a downlink transmission. We then consider the uplink case, where synchronization is made particularly difficult by the fact that each user’s signal is characterized by different timing and frequency errors, and the base station has thus to estimate a relatively large number of unknown parameters. A second difficulty is related to how the estimated parameters must be employed to correct the uplink timing and frequency errors. The paper concludes with a comparison of the reviewed synchronization schemes in an OFDMA scenario inspired by the IEEE 802.16 standard for wireless metropolitan area networks.