On interference cancellation and high-rate space-time codes

Published

Journal Article

We study the design and decoding of high-rate space-time codes in two contexts. The first part of the paper examines the multiple-access channel (MAC) where users employ space-time block codes (STBC). The problem is formulated in the context of an inter-symbol interference (ISI) channel which occurs for transmission over frequency-selective channels. We show that a diversity order of 2Mτ (v + 1) is achievable at full transmission rate for each user, when we have Mτ receive antennas, channel memory of v and an optimal multiuser maximum-likelihood (ML) decoder is used. In the second part, we examine high-rate space-time codes that have a high-diversity code embedded within them. This can also be viewed as unequal error protection codes designed for unequal diversity order, which is the metric suitable for fading channels.

Full Text

Duke Authors

Cited Authors

  • Diggavi, SN; Al-Dhahir, N; Calderbank, AR

Published Date

  • January 1, 2003

Published In

  • Ieee International Symposium on Information Theory Proceedings

Start / End Page

  • 238 -

Digital Object Identifier (DOI)

  • 10.1109/isit.2003.1228252

Citation Source

  • Scopus