Channel capacity and coding

Channel capacity and coding

For access to this article, please select a purchase option:

Buy chapter PDF
(plus tax if applicable)
Buy Knowledge Pack
10 chapters for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
Introduction to Digital Wireless Communications — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

Channel capacity characterizes the maximum transmission rate that a channel can support for error-free information delivery. As the performance upper limit for arbitrary transmission system, channel capacity provides valuable guidances for real-world transceiver design. The mathematical theory of channel capacity was established by Claude Shannon in the late 1940s, through his coding theorems. The advanced modulation and coding schemes developed afterward validate Shannon's pioneering vision. Error-control coding serves an effective capacity achieving solution. This chapter studies capacity and coding for wireless fading channels. We first discuss the capacity definition and sample error-control coding schemes for additive white Gaussian noise (AWGN) channels. We then present the commonly used capacity definition for both flat and selective fading channels. In addition to the ergodic capacity and capacity with outage, we also introduce and derive the optimal power and rate adaptation (OPRA) capacity. We conclude the chapter with the discussion of interleaving technique, which is widely used in wireless systems to mitigate the effect of deep fade on coded transmission.

Chapter Contents:

  • 8.1 Capacity of AWGN channels
  • 8.2 Channel coding for AWGN channels
  • 8.2.1 Block codes
  • 8.2.2 Performance benefit with coding
  • 8.2.3 Convolutional codes and turbo codes
  • 8.3 Capacity of flat fading channels
  • 8.3.1 Ergodic capacity
  • 8.3.2 Capacity with outage
  • 8.3.3 Optimal power and rate adaptation
  • 8.4 Capacity of selective fading channels
  • 8.5 Interleaving for fading channels
  • 8.6 Further readings
  • Problems
  • Bibliography

Inspec keywords: modulation coding; error correction codes; fading channels; channel capacity; telecommunication network reliability; channel coding; AWGN channels

Other keywords: wireless systems; coding theorems; AWGN channels; interleaving technique; transceiver design; channel coding; additive white Gaussian noise channels; optimal power and rate adaptation capacity; channel capacity; error-control coding; coded transmission; error-free information delivery; OPRA capacity; wireless fading channels; advanced modulation

Subjects: Reliability; Radio links and equipment; Codes

Preview this chapter:
Zoom in

Channel capacity and coding, Page 1 of 2

| /docserver/preview/fulltext/books/te/pbte072e/PBTE072E_ch8-1.gif /docserver/preview/fulltext/books/te/pbte072e/PBTE072E_ch8-2.gif

Related content

This is a required field
Please enter a valid email address