A new cooperative transmission scheme using the space-time delay code
2004 (English)In: 2004 ITG: WORKSHOP ON SMART ANTENNAS, PROCEEDINGS, VDE Verlag GmbH, 2004, 41-48 p.Conference paper (Refereed)
We propose a new resource efficient transmission scheme to achieve cooperative diversity of a distributed smart antenna system consisting of an information source, destination, and two alternating supportive relay stations. Each station is equipped with one antenna element. Furthermore we assume perfect synchronization and channel knowledge at the receivers. The proposed linear encoding functions with interference cancellation at one relay station result in an equivalent space-time delay coded system, but with additionally colored noise from the relay stations. Based on the maximum likelihood sequence estimator we derive criteria to evaluate the performance compared to the direct SISO transmission. Finally the numerical simulation results of an suboptimal sequence estimator show significant performance gains if the power gain from the hopping is gainful exploited. If not, the additional noise from the relay stations will degrade the performance at reasonable transmit powers.
Place, publisher, year, edition, pages
VDE Verlag GmbH, 2004. 41-48 p.
IdentifiersURN: urn:nbn:se:kth:diva-52419ISI: 000224728800007OAI: oai:DiVA.org:kth-52419DiVA: diva2:466407
International IEEE/ITG Workshop on Smart Antennas. Munich Univ, Munich, GERMANY. MAR 18-19, 2004
QC 201112162011-12-152011-12-152011-12-16Bibliographically approved