Efficient implementation of sphere demodulation

Ami Wiesel, Xavier Mestre, Alba Pages, Javier R. Fonollosa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

48 Scopus citations

Abstract

We provide new results on the sphere demodulator (SD) and its new variant, the list sphere demodulator (LSD). A new reduced complexity SD algorithm is presented. We suggest to implement the necessary sorting of the constellation symbols through a look up table. In addition, we propose the use of a modified QR algorithm which tries to begin the search in the layers which are "easier to demodulate". These improvements also apply to the recently published soft output LSD, in which we implement the list using the heap structure.

Original languageAmerican English
Title of host publication2003 4th IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages36-40
Number of pages5
ISBN (Electronic)078037858X
DOIs
StatePublished - 2004
Externally publishedYes
Event4th IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2003 - Rome, Italy
Duration: 15 Jun 200318 Jun 2003

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Volume2004-January

Conference

Conference4th IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2003
Country/TerritoryItaly
CityRome
Period15/06/0318/06/03

Bibliographical note

Publisher Copyright:
© 2003 IEEE.

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