Combined multiple transmit antennas and multilevel modulation techniques
2007 (English)In: 28th Symposium on Information Theory in the Benelux, 2007, 1-8 p.Conference paper (Refereed)
The use of a unique bit-to-symbol mapping for each diversity branch (often referred to as constellation rearrangement) is known to provide good performance for higher level linear modulation techniques when used in conjunction with orthogonal transmit diversity (OTD) and automatic repeat request (ARQ) schemes. This paper investigates the performance of constellation rearrangement scheme when used in conjunction with multiple transmit antennas and space time block codes. A modified space-time block coding structure is presented that employs a different constellation mapping on each diversity branch. It is seen that, the use of different constellation mappings in the space time block coded systems provide a better performance as compared to the OTD systems while maintaining the same spectral efficiency.
Place, publisher, year, edition, pages
2007. 1-8 p.
Computer and Information Science
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-30592OAI: oai:DiVA.org:kth-30592DiVA: diva2:400893
28th Symposium on Information Theory in the Benelux. Enschede, The Netherlands, May 24-25, 2007
QC 201111142011-02-282011-02-282011-12-13Bibliographically approved