MODULATION-MODE ASSIGNMENT IN SVD-ASSISTED MULTIUSER MIMO-OFDM SYSTEMS

Sebastian Aust, Andreas Ahrens, César Benavente-Peces

Abstract

In order to comply with the demand on increasing available data rates in particular in wireless technologies, systems with multiple transmit and receive antennas, also called MIMO (multiple-input multiple-output) systems, have become indispensable for future generations of wireless systems. Due to the strongly increasing demand in high-data rate transmission systems, frequency non-selective MIMO links have reached a state of maturity and frequency selective MIMO links are in the focus of interest. In this field, the combination of MIMO transmission and OFDM (orthogonal frequency division multiplexing) can be considered as an essential part of fulfilling the requirements of future generations of wireless systems. However, single-user scenarios have reached a state of maturity. By contrast multiple users’ scenarios require substantial further research, where in comparison to ZF (zero-forcing) multiuser transmission techniques, the individual user’s channel characteristics are taken into consideration in this contribution. The performed joint optimization of the number of activated MIMO layers and the number of transmitted bits per subcarrier along with the appropriate allocation of the transmit power shows that not necessarily all user-specific MIMO layers per subcarrier have to be activated in order to minimize the overall BER under the constraint of a given fixed data throughput.

References

  1. Ahrens, A. and Benavente-Peces, C. (2010). ModulationMode and Power Assignment for SVD-assisted and Iteratively Detected Downlink Multiuser MIMO Systems. In International Conference on Wireless Information Networks and Systems (WINSYS), pages 107- 114, Athens (Greece).
  2. Ahrens, A., Kühn, V., and Weber, T. (2008). Iterative Detection for Spatial Multiplexing with Adaptive Power Allocation. In 7th International Conference on Source and Channel Coding (SCC), Ulm.
  3. Ahrens, A. and Lange, C. (2007). Transmit Power Allocation in SVD Equalized Multicarrier Systems. International Journal of Electronics and Communications (AEÜ ), 61(1):51-61.
  4. Ahrens, A. and Lange, C. (2008). Modulation-Mode and Power Assignment in SVD-equalized MIMO Systems. Facta Universitatis (Series Electronics and Energetics), 21(2):167-181.
  5. Ahrens, A. and Lange, C. (2009). Modulation-Mode and Power Assignment in SVD-assisted MIMO Systems with limited Feedback. In First Asian Conference on e-Business and Telecommunications (CeBT), pages 1- 18, Changhua City (Taiwan).
  6. Bahai, A. R. S. and Saltzberg, B. R. (1999). Multi-Carrier Digital Communications - Theory and Applications of OFDM. Kluwer Academic/Plenum Publishers, New York, Boston, Dordrecht, London, Moskau.
  7. Bingham, J. A. C. (2000). ADSL, VDSL, and Multicarrier Modulation. Wiley, New York.
  8. Choi, R. L. and Murch, R. D. (2003). New Transmit Schemes and Simplified Receivers for MIMO Wireless Communication Systems. IEEE Transactions on Wireless Communications, 2(6):1217-1230.
  9. Choi, R. L. and Murch, R. D. (2004). A Transmit Preprocessing Technique for Multiuser MIMO Systems using a Decomposition Approach. IEEE Transactions on Wireless Communications, 3(1):20-24.
  10. Hanzo, L. and Keller, T. (2006). OFDM and MC-CDMA. Wiley, New York.
  11. Hwang, T. J., Hwang, H. S., and Balik, H. K. (2003). Adaptive OFDM with Channel Predictor over FrequencySelective and Rapid Fading Channel. In Personal, Indoor and Mobile Radio Communications (PIMRC), pages 859-863, Bejing (China).
  12. Jang, J. and Lee, K. B. (2003). Transmit Power Adaptation for Multiuser OFDM Systems. IEEE Journal on Selected Areas in Communications, 21(2):171-178.
  13. Joham, M., Utschick, W., and Nossek, J. A. (2005). Linear Transmit Processing in MIMO Communications Systems. IEEE Transactions on Signal Processing, 53(8):2700-2712.
  14. Krongold, B. S., Ramchandran, K., and Jones, D. L. (2000). Computationally Efficient Optimal Power Allocation Algorithms for Multicarrier Communications Systems. IEEE Transactions on Communications, 48(1):23-27.
  15. Kühn, V. (2006). Wireless Communications over MIMO Channels - Applications to CDMA and Multiple Antenna Systems. Wiley, Chichester.
  16. Liu, W., Yang, L. L., and Hanzo, L. (2008). SVD Assisted Joint Transmitter and Receiver Design for the Downlink of MIMO Systems. In IEEE 68th Vehicular Technology Conference (VTC), pages 1-5, Calgary.
  17. McKay, M. R. and Collings, I. B. (2005). Capacity and Performance of MIMO-BICM with Zero-Forcing Receivers. IEEE Transactions on Communications, 53(1):74- 83.
  18. Meurer, M., Baier, P. W., Weber, T., Lu, Y., and Papathanassiou, A. (2000). Joint Transmission: An Advantageous Downlink Concept for CDMA Mobile Radio Systems using Time Division Duplexing. Electronics Letters, 36(10):900-901.
  19. Mueller-Weinfurtner, S. H. (2002). Coding Approaches for Multiple Antenna Transmission in Fast Fading and OFDM. IEEE Transactions on Signal Processing, 50(10):2442-2450.
  20. Park, C. S. and Lee, K. B. (2004). Transmit Power Allocation for BER Performance Improvement in Multicarrier Systems. IEEE Transactions on Communications, 52(10):1658-1663.
  21. Pätzold, M. (2002). Mobile Fading Channels. Wiley, Chichester.
  22. Proakis, J. G. (2000). Digital Communications. McGrawHill, Boston.
  23. Raleigh, G. G. and Cioffi, J. M. (1998). Spatio-Temporal Coding for Wireless Communication. IEEE Transactions on Communications, 46(3):357-366.
  24. Raleigh, G. G. and Jones, V. K. (1999). Multivariate Modulation and Coding for Wireless Communication. IEEE Journal on Selected Areas in Communications, 17(5):851-866.
  25. van Nee, R. and Prasad, R. (2000). OFDM for wireless Multimedia Communications. Artech House, Boston and London.
  26. Wong, C. Y., Cheng, R. S., Letaief, K. B., and Murch, R. D. (1999). Multiuser OFDM with Adaptive Subcarrier, Bit, and Power Allocation. IEEE Journal on Selected Areas in Communications, 17(10):1747-1758.
  27. Zheng, L. and Tse, D. N. T. (2003). Diversity and Multiplexing: A Fundamental Tradeoff in MultipleAntenna Channels. IEEE Transactions on Information Theory, 49(5):1073-1096.
Download


Paper Citation


in Harvard Style

Aust S., Ahrens A. and Benavente-Peces C. (2011). MODULATION-MODE ASSIGNMENT IN SVD-ASSISTED MULTIUSER MIMO-OFDM SYSTEMS . In Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2011) ISBN 978-989-8425-73-7, pages 77-86. DOI: 10.5220/0003443900770086


in Bibtex Style

@conference{winsys11,
author={Sebastian Aust and Andreas Ahrens and César Benavente-Peces},
title={MODULATION-MODE ASSIGNMENT IN SVD-ASSISTED MULTIUSER MIMO-OFDM SYSTEMS},
booktitle={Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2011)},
year={2011},
pages={77-86},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003443900770086},
isbn={978-989-8425-73-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2011)
TI - MODULATION-MODE ASSIGNMENT IN SVD-ASSISTED MULTIUSER MIMO-OFDM SYSTEMS
SN - 978-989-8425-73-7
AU - Aust S.
AU - Ahrens A.
AU - Benavente-Peces C.
PY - 2011
SP - 77
EP - 86
DO - 10.5220/0003443900770086