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Canonical Space-Time Coordinates For Multiuser Wireless Communications (0)
| Venue: | Proc. of the 1999 2nd IEEE Signal Proc. Workshop on Signal Proc. For Wireless Commun. SPAWC |
| Citations: | 4 - 4 self |
BibTeX
@INPROCEEDINGS{Onggosanusi_canonicalspace-time,
author = {Eko N. Onggosanusi and Akbar M. Sayeed and Barry D. Van Veen},
title = {Canonical Space-Time Coordinates For Multiuser Wireless Communications},
booktitle = {Proc. of the 1999 2nd IEEE Signal Proc. Workshop on Signal Proc. For Wireless Commun. SPAWC},
year = {}
}
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Abstract
We propose a space-time multiuser detection scheme for wireless communications that projects the received signal onto a fixed set of basis signals. The basis signals are dictated by a canonical characterization of channel propagation dynamics in terms of discrete multipath delays, Doppler shifts, and directions of arrival. They capture the essential degrees of freedom in the received signal. The canonical space-time coordinates induced by the underlying basis provide a natural framework for multi-access interference suppression and diversity processing. The signal of the desired user is concentrated in a subset of coordinates, while the interference generally occupies the entire space-time coordinate system. It is demonstrated that MAI suppression can be improved by incorporating a subset of coordinates where the desired user is absent. 1. INTRODUCTION The use of antenna arrays for enhancing the capacity and fidelity of multiuser wireless communication systems has spurred significant i...
Keyphrases
canonical space-time coordinate multiuser wireless communication basis signal received signal discrete multipath delay fixed set multiuser wireless communication system entire space-time coordinate system mai suppression multi-access interference suppression essential degree natural framework wireless communication underlying basis doppler shift antenna array channel propagation dynamic diversity processing canonical characterization space-time multiuser detection scheme
