This free course, Exploring communications technology, looks at some of the principles underpinning communications technology. It looks at the properties of signals and media (such as optical fibre and radio waves), error control, data compression, and the principles of 4G mobile communications, wi-fi and DSL broadband.
Course learning outcomes
After studying this course, you should be able to:
demonstrate an understanding of the principles of, and reasons for, carrier-wave modulation, and its application to Quadrature Amplitude Modulation
demonstrate an understanding of the roles of error detection and error correction, and be able to perform calculations involving checkeck digits and coding rates
demonstrate an understanding of the basic techniques of perceptual coding and the reasons for their use
demonstrate an understanding of how the use of multiple OFDM subchannels enables efficient use of communications channels in mobile communications, broadband and wifi.
You can start this course right now without signing-up. Click on any of the course content sections below to start at any point in this course.
If you want to be able to track your progress, earn a free Statement of Participation, and access all course quizzes and activities, sign-up.
Creative commons: The Open University is proud to release this free course under a Creative Commons licence.
However, any third-party materials featured within it are used with permission and are not ours to give away. These
materials are not subject to the Creative Commons licence. See terms and conditions377 and our FAQs378.
Full copyright details can be found in the Acknowledgements section of each week.
For further information, take a look at our frequently asked questions which may give you the support you need.
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