Applications of space-time block codes and interference suppression for high capacity and high data rate wireless systems


Journal Article

This paper presents a combined interference suppression and ML decoding scheme for space-time block codes that can effectively suppress interference from other co-channel users while providing each user with a diversity benefit. We consider a multiuser environment with K synchronous co-channel users, each is equipped with N transmit antennas and uses the space-time block coding. By exploiting the temporal and spatial structure of these codes, we develop a minimum mean-squared error (MMSE) interference suppression technique. Assuming that the receiver uses M≥K receive antennas, these technique will perfectly suppress the interference from the K-1 co-channel space-time users and provide a diversity order of N×(M-K+1) to each of the K users. Moreover, this MMSE solution tends itself to an adaptive implementation and does not require any explicit knowledge about the interference. In conjunction with this interference suppression technique, we show how space-time block codes can be used to increasing the capacity and/or data rate of wireless communication systems.

Duke Authors

Cited Authors

  • Naguib, AF; Seshadri, N; Calderbank, AR

Published Date

  • December 1, 1998

Published In

Volume / Issue

  • 2 /

Start / End Page

  • 1803 - 1810

International Standard Serial Number (ISSN)

  • 1058-6393

Citation Source

  • Scopus