VLSI implementation issues of lattice decoders for MIMO systems

Summary, in English

Lattice decoders for MIMO systems, including the sphere decoder (SD) and the Schnorr-Euchner (SE) decoder, have been shown to approach the performance of Maximum-likelihood decoder with low complexity. There are three kinds of lattice decoder, sequential SD, K-best SD and sequential SE, which are popular in the literature. As a modification to the K-best SD, a lower complexity K-best SE is proposed in this paper. Furthermore, the K-best SE is shown to be a more suitable choice for VLSI implementation than the other decoders due to its low complexity in fixed-point implementation

• Författare: Zhan Guo; Peter Nilsson
• Avdelning/ar: Institutionen för elektro- och informationsteknik
• Publiceringsår: 2004
• Språk: Engelska
• Sidor: 477-480
• Publikation/Tidskrift/Serie: 2004 IEEE International Symposium on Circuits and Systems
• Länkar: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1329044
• Dokumenttyp: Konferensbidrag
• Förlag: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Ämne: Electrical Engineering, Electronic Engineering, Information Engineering
• Nyckelord: MIMO systems; Schnorr-Euchner decoder; fixed point implementation; lattice decoders; maximum likelihood decoder; sphere decoder; VLSI implementation
• Conference name: 2004 IEEE International Symposium on Circuits and Systems
• Conference date: 2004-05-23 - 2004-05-26
• Conference place: Vancouver, BC, Canada
• Status: Published
• Forskningsgrupp: Elektronikkonstruktion
• ISBN/ISSN/Övrigt: ISBN: 0-7803-8251-X