From Geiger-Counters to File Systems: Remote Hardware Access for the Operating Systems Course

What Operating Systems Need from the Hardware

In this paper, we aren’t talking about primitive operating systems. We will discuss what is required of the computer hardware for a robust multiprogramming operating system. Let’s examine that description for a minute. A multiprogramming operating system is one that can run two or more programs at the same time, possibly for two or more users. A robust operating system is one where each user ap...

Virtual Hardware for Operating Systems

Developing an operating system on bare hardware is diicult due to an inhospitable development environment, long edit-compile-run-debug times, and the need for extra target hardware. This paper contributes general techniques for creating virtual hardware for operating systems development. The virtual machine is realized on top of UNIX and is a close approximation of real hardware, including inte...

channel estimation for mimo-ofdm systems

تخمین دقیق مشخصات کانال در سیستم های مخابراتی یک امر مهم محسوب می گردد. این امر به ویژه در کانال های بیسیم با ‏خاصیت فرکانس گزینی و زمان گزینی شدید، چالش بزرگی است. مقالات متعدد پر از روش های مبتکرانه ای برای طراحی و آنالیز ‏الگوریتم های تخمین کانال است که بیشتر آنها از روش های خاصی استفاده می کنند که یا دارای عملکرد خوب با پیچیدگی ‏محاسباتی بالا هستند و یا با عملکرد نه چندان خوب پیچیدگی پایینی...

Notes for the Operating Systems course (CS347)

Reconfigurable Hardware Operating Systems: From Design Concepts to Realizations

In this paper, we approach the rather new area of reconfigurable hardware operating systems in a top-down manner. First, we describe a design concept that defines basic abstractions and operating system services in a device-independent way. Then, we refine this model to an implementation concept on the Xilinx Virtex XCV-800 technology. The implementation concept proposes a multitasking environm...