Abstract
In this paper, we propose high-rate space-time coding for cooperative wireless networks to reduce the overall delay incurred in relaying signals to multiple receivers. The relay structure is optimized in order to achieve maximum SNR at the receiver nodes. The proposed scheme provides a significant reduction in the delay required for the relaying and transmission of the signals to the multiple receivers with a minute loss in performance. We have also shown by simulation that this loss in the performance could be recovered by selecting more number of relays. We propose two relaying strategies for high-rate space-time codes, which are very useful in providing high data-rate in wireless cooperative networks.
| Original language | English |
|---|---|
| Pages (from-to) | 69-81 |
| Number of pages | 13 |
| Journal | Wireless Personal Communications |
| Volume | 54 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jul 2010 |
Funding
Acknowledgements This work was supported by the Research Council of Norway project 176773/S10 called OptiMO, which belongs to the VERDIKT program. Ranjan Bose received his B.Tech. degree in Electrical Engineering from the Indian Institute of Technology (IIT), Kanpur in 1992 and the M.S. and Ph.D. degrees in Electrical Engineering from the University of Penn-sylvania, Philadelphia, USA in 1993 and 1995, respectively. He worked at Alliance Semiconductor Inc., San Jose, as a Senior Design Engineer from 1996 to 1997. Since November 1997 he has been with the Depart-ment of Electrical Engineering at Indian Institute of Technology Delhi, where currently he is a Professor. His research interests lie in the areas of Ultra-Wideband (UWB) Communications, Broadband Wireless Access and Coding Theory. He currently heads the Wireless Research Lab in IIT Delhi. Dr. Bose received the URSI Young Scientist award in 1999, the Humboldt Fellowship in July 2000, the Indian National Academy of Engineers (INAE) Young Engineers Award in 2003 and the AICTE Career Award for Young Teachers in 2004 and the BOYSCAST Fellowship in 2005. He has written a book titled Information Theory, Coding and Cryptography. He is currently the Editor-in Chief of the IETE Journal of Education.
Keywords
- Cooperative network
- High-rate code
- Space-time block code