The University of Southampton
University of Southampton Institutional Repository

Iterative MIMO Detection for Rank-Deficient Systems

Iterative MIMO Detection for Rank-Deficient Systems
Iterative MIMO Detection for Rank-Deficient Systems
In this letter, a novel iterative multiple-input multiple-output (MIM)O detector reminiscent of sphere decoding (SD) is presented. Its main benefit is that in contrast to other softinput soft-output (SISO) SD algorithms presented in the literature, the proposed iterative detector is capable of performing well in so-called overloaded systems, where the number of transmit antennas is significantly higher than the number of receive antennas, and hence, the channel’s covariance matrix is rank-deficient. Furthermore, the proposed detector is guaranteed to achieve the performance of the max-log detector without the necessity of choosing a specific SD radius or an SD candidate list for generating soft-outputs. For example, when receiving signals from four transmit antennas with the aid of only two receive antennas, the proposed detector is capable of approaching the channel capacity limit within about 2 dBs. Index Terms—Iterative detection, multiple-input multipleoutput (MIMO), sphere decoding (SD).
699-702
Wolfgang, A.
e87811dd-7028-4ac3-90cc-62003ff22202
Akhtman, J.
d4fd2b26-c123-463d-847c-80adc83a89fa
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Wolfgang, A.
e87811dd-7028-4ac3-90cc-62003ff22202
Akhtman, J.
d4fd2b26-c123-463d-847c-80adc83a89fa
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Wolfgang, A., Akhtman, J., Chen, S. and Hanzo, L. (2006) Iterative MIMO Detection for Rank-Deficient Systems. IEEE Signal Processing Letters, 13 (11), 699-702.

Record type: Article

Abstract

In this letter, a novel iterative multiple-input multiple-output (MIM)O detector reminiscent of sphere decoding (SD) is presented. Its main benefit is that in contrast to other softinput soft-output (SISO) SD algorithms presented in the literature, the proposed iterative detector is capable of performing well in so-called overloaded systems, where the number of transmit antennas is significantly higher than the number of receive antennas, and hence, the channel’s covariance matrix is rank-deficient. Furthermore, the proposed detector is guaranteed to achieve the performance of the max-log detector without the necessity of choosing a specific SD radius or an SD candidate list for generating soft-outputs. For example, when receiving signals from four transmit antennas with the aid of only two receive antennas, the proposed detector is capable of approaching the channel capacity limit within about 2 dBs. Index Terms—Iterative detection, multiple-input multipleoutput (MIMO), sphere decoding (SD).

Text
01707739.pdf - Other
Download (178kB)

More information

Published date: November 2006
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 263094
URI: http://eprints.soton.ac.uk/id/eprint/263094
PURE UUID: 1f9b4ccd-bc40-4869-950e-f66486fcfa6c
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 12 Oct 2006
Last modified: 05 Nov 2019 02:07

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×