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Analog MIMO detection on the basis of Belief Propagation

Research output: Contribution to journalArticle

Original languageEnglish
Pages50 - 54
Number of pages4
Journal49th IEEE International Midwest Symposium on Circuits and Systems, 2006 (MWSCAS '06)
Journal publication date6 Aug 2006
Volume2
DOIs
StatePublished

Abstract

In this article we present the design of an analog detector for Multiple-Input Multiple-Output (NIMO) wireless systems, based on the well known Belief Propagation (BP) algorithm. BP has been shown to obtain excellent results when solving inference problems in sparsely connected factor graphs. Unfortunately, MIMO detection is an example of inference in a densely connected graph, so other techniques need to be applied. We show that BP in conjunction with simulated annealing can offer near optimal performance when there is enough diversity in the receiver. Interestingly, this algorithm can be easily mapped into analog circuitry, thus leading to potentially low-power area-efficient MIMO detectors. A small analog detector based on this work has been designed and laid out in a 0.25¿m BiCMOS process.

Additional information

Publisher: Institute of Electrical and Electronics Engineers, Inc. (IEEE) Name and Venue of Conference: 49th IEEE International Midwest Symposium on Circuits and Systems, 2006 (MWSCAS '06) , San Juan, USA Name and Venue of Event: 49th IEEE International Midwest Symposium on Circuits and Systems, 2006 (MWSCAS '06) Rose publication type: Conference contribution Sponsorship: This research is sponsored by Toshiba TRL. Terms of use: Copyright © 2006 IEEE. Reprinted from IEEE 49th International Midwest Symposium on Circuits and Systems, 2006 (MWSCAS '06). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Research areas

  • Multiple-Input Multiple-Output (NIMO), analog, belief propagation (BP)

Event

49th IEEE International Midwest Symposium on Circuits and Systems, 2006 (MWSCAS '06)

Duration6 Aug 2006 → …
CountryPuerto Rico
CitySan Juan

Event: Conference

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