Multiple Access

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Multiple Access

Course UNIK4230
Title Multiple Access
Lecture date 2015/03/26
presented by Per Hjalmar Lehne
Objective Discussion on Multiple Access Protocols.

Understand why it is necessary to explore methods to allow multiple users to share the spectrum simultaneously.

Learning outcomes Understand the following topics with relation to Multiple Access Protocols concept:
  • Contentionless & Content
  • FDMA, TDMA, CDMA, OFDMA
  • Spread Spectrum
Pensum (read before) Book: Wireless Communication Systems, chapter 6, sections 6.1 - 6.3

Extra material: OFDM and OFDMA for mobile communications:

References (further info) References:
Keywords Multiple Access Protocols, FDMA, TDMA, CDMA, Spread Spectrum, Rake receiver, OFDMA, Duplex Transmisions, WCDMA, Cyclic prefix

this page was created by Special:FormEdit/Lecture, and can be edited by Special:FormEdit/Lecture/Multiple Access.


Test yourself, answer these questions

  • Explain TDMA, FDMA, CDMA mutiple access and their relative advantages and disadvantages.
  • Explain orthogonality
  • What is Spread spectrum?
  • What is Frequency Hopping Spread Spectrum (FHSS)? what is slow hopping and fast hopping?
  • advantages and disadvantages of OFDMA

Lecture 2015

Lecture 2014

Lecture notes 2013

Lecture notes 2012

Other info