A new cooperative transmission scheme using the space-time delay code
- 6 April 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
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 S1SO 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.Keywords
This publication has 13 references indexed in Scilit:
- Cooperative Diversity in Wireless Networks: Efficient Protocols and Outage BehaviorIEEE Transactions on Information Theory, 2004
- Fading Relay Channels: Performance Limits and Space–Time Signal DesignIEEE Journal on Selected Areas in Communications, 2004
- Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networksIEEE Transactions on Information Theory, 2003
- Cooperative coding for wireless networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Basestation modulation diversity for digital simulcastPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Increasing uplink capacity via user cooperation diversityPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Digital Communication Over Fading ChannelsPublished by Wiley ,2002
- Space-time codes for high data rate wireless communication: performance criterion and code constructionIEEE Transactions on Information Theory, 1998
- Maximum-likelihood sequence estimation of digital sequences in the presence of intersymbol interferenceIEEE Transactions on Information Theory, 1972
- Three-terminal communication channelsAdvances in Applied Probability, 1971