Notice Board

Christofer Larsson – technical writer with background in physics and engineering (

Documentation is often a customer’s first contact with a product, and perhaps with the company altogether. Therefore, language and disposition are very important, as it gives a first impression of aspects of both the product and the organization. A good technical document should be

  • easy to read for a broad audience with a minimum amount of searching or learning needed
  • be of practical use, enriched with illustrations (photos, screenshots, diagrams, flow charts etc.)
  • be structured to facilitate finding answers to questions and guide the reader to relevant sections or references

Any documentation should have a project manager, or document owner, with responsibility for

  • design of the publication, including layout and illustrations
  • degree of coverage, that is, that all relevant procedures are documented
  • content verification, including testing of a product in accordance with the document


Illustrations should normally constitute a substantial part of the document. These should be meaningful and relevant to the topic. A number of frameworks or utilities can be used to create figures, such as UML (the class diagram) and LaTeX/Tikz (the mind map)

Publications and Samples

This notice board contains some links to some written material – both published and unpublished – on various topics.

Two books, published in 2014 and 2018, discuss engineering topics in telecommunications. Design of Modern Communication Networks is a monograph on general engineering principles in telecommunications, with techniques in traffic theory, queueing theory and network programming.

As the title suggests, 5G Networks – Planning, Design and Optimization, is concerned with some methods from real-world 5G design projects, and covers topics such as network science, machine learning and combinatorial optimization.

A few papers have are also available, academic as well as popular scientific, either published or unpublished.

On Bounded Peaking in the Cheap Control Regulator (pdf), co-authored with Xiaoming Hu, presented at IFAC YAC’95 and published as a conference paper.

Notes on Numerical Analysis

My thesis, part of my Master’s degree in Engineering Physics, consists of the material under the links below (slightly edited)



The Concept of Zero Dynamics – a Brief Survey

Singular Perturbation Methods

Frequency Domain Conditions for $L^2$-Bounded Cheap Control Regulators

Geometric Interpretation of the Cheap Control Regulator

A Special Case

The General Case