M. Bazdresch*1, J. Cortez2, O. Longoria-Gándara1, R. Parra-Michel3
1 ITESO, Periférico Sur, Manuel Gómez Morín, 8585 Tlaquepaque, Jalisco, México. * miguelb@ieee.org.
2 ITSON, Antonio Caso, S/N, C.P. 85130, Cd. Obregon, Sonora, México.
3 CINVESTAV del IPN, Av. del Bosque, 1145, C.P. 45019, Zapopan, Jalisco, México.
Abstract
]]> Hybrid MIMO space-time codes combine the benefits of spatial multiplexing with diversity gain to achieve both high spectral efficiency and link reliability. In this paper, we present a family of hybrid codes, known as LD STBC-VBLAST codes, along with a receiver architecture suitable for low-complexity hardware implementation. We show that, under Rayleigh fading, the performance of LD STBC-VBLAST codes is superior to other recently proposed hybrid codes. We also present a technique to derive, from a given propagation scenario, spatially correlated MIMO channel models adequate for space-time coding performance analysis. Using this technique, we evaluate the performance of LD STBC-VBLAST codes under several correlated channels.Keywords: Linear dispersion codes, hybrid space-time codes, correlated MIMO channel, MIMO systems, sorted QR decomposition.
Resumen
Los códigos espacio-temporales híbridos para sistemas MIMO combinan las ventajas del multiplexaje espacial con la ganancia en diversidad, para lograr, al mismo tiempo, una alta eficiencia espectral y una baja tasa de error. En este artículo, presentamos una familia de códigos híbridos, conocida como códigos LD STBC-VBLAST, junto con una arquitectura para un receptor que puede ser implementada en hardware y presenta baja complejidad. Mostramos que, cuando el canal inalámbrico es Rayleigh, el rendimiento de los códigos LD STBC-VBLAST es mayor que el de otros códigos híbridos que han sido propuestos recientemente. También presentamos una técnica para derivar, a partir de un escenario de propagación, un canal MIMO con correlación espacial que es adecuado para simular y evaluar el rendimiento de un código espacio-temporal. Utilizando esta técnica, evaluamos el rendimiento de los códigos LD STBC-VBLAST en varios canales correlacionados.
DESCARGAR ARTÍCULO EN FORMATO PDF
Acknowledgements
This work was supported by PROMEP under research grant 103.5/10/8573.
]]>References
[1] İ. Telatar, "Capacity of Multiple-Antenna Gaussian Channels", European Transactions on Telecommunications, vol. 10, no. 6, pp. 585-595, 1999. [ Links ]
[2] D. Tse and L. Zheng, "Diversity and Multiplexing: Fundamental Tradeoff in Multiple Antenna Channels", IEEE Transactions on Information Theory, Vol. 49, pp. 1073-96, 2003. [ Links ]
[3] G. J. Foschini, "Layered Space-Time Architecture for Wireless Communication in a Fading Environment When Using Multi-Element Antennas", Bell Laboratories Technical Journal, Vol. 1, No. 2, pp. 41-59, 1996. [ Links ]
[4] S. M. Alamouti, "A Simple Transmit Diversity Technique for Wireless Communications, IEEE Journal on Selected Areas in Communications", Vol. 16, No. 8, pp. 1451-1458, 1998. [ Links ]
]]>[5] F. Oggier, J. C. Belfiore and E. Viterbo, "Cyclic Division Algebras: A Tool for Space-Time Coding", Foundations and Trends in Communications and Information Theory, Vol. 4, No. 1, pp. 1-95, 2007. [ Links ]
[6] G. Berhuy and F. Oggier, "On the Existence of Perfect Space-Time Codes", IEEE Transactions on Information Theory, vol.55, No.5 , pp. 2078-2082, 2009. [ Links ]
[7] E.N. Onggosanusi, A.G. Dabak and T.A. Schmidl, "High rate space-time block coded scheme: performance and improvement in correlated fading channels", IEEE Proceedings of the Wireless Communications and Networking Conference (WCNC 2002), Vol.1, pp. 194199, March 2002. [ Links ]
[8] W. da C. Freitas Jr., F. R. P. Cavalcanti, and R. R. Lopes, "Hybrid Transceiver Schemes for Spatial Multiplexing and Diversity in MIMO Systems," Journal of Communication and Information Systems, vol. 20, no. 3, pp. 63-76, 2005. [ Links ]
[9] H. Kim, H. Park, T. Kim and I. Eo, "Performance Analysis of a DSTTD System with Decision-Feedback Detection", IEEE Proceedings of the International Conference on Acoustics, Speech and Signal Processing (ICASSP 2006), Vol. 4, pp. 749-752, May 2006. [ Links ]
]]>[10] T. Mao and M. Motani, "STBC-VBLAST for MIMO Wireless Communication Systems", Proceedings of the IEEE International Conference on Communications (ICC 2005), vol. 4, pp. 2266-2270, May 2005. [ Links ]
[11] L. Zhao and V. K. Dubey, "Detection Schemes for Space-time Block Code and Spatial Multiplexing Combined System", IEEE Communication Letters, Vol. 9, No. 1, pp. 49-51, 2005. [ Links ]
[12] J. Cortez, M. Bazdresch, D. Torres, R. Parra-Michel, "Generalized ABBA-V-BLAST Hybrid Space-Time Code for Wireless Communications", IEEE 9th Workshop on Signal Processing Advances in Wireless Communications, 2008 (SPAWC 2008), pp. 481-485, 6-9 July 2008. [ Links ]
[13] B. Hassibi and B. M. Hochwald, "High-rate Codes That Are Linear in Space and Time", IEEE Transactions on Information Theory, Vol. 48, No. 7, pp. 1804-1824, 2002. [ Links ]
[14] O. Longoria-Gandara, A. Sanchez Hernandez, J. Cortez, M. Bazdresch and R. Parra, "Linear Dispersion Codes Generation from Hybrid STBC-VBLAST Architectures", IEEE Proceedings of the Fourth International Conference on Electrical and Electronics Engineering (ICEEE 2007), pp. 142-145, September 2007. [ Links ]
]]>[15] D. Gesbert, H. Bolcskei, D.A. Gore and J. Paulraj, "Outdoor MIMO Wireless Channels: Models and Performance Prediction", IEEE Transactions on Communications, vol. 50, no. 12, pp. 1926-1934, 2002. [ Links ]
[16] D. S. Shiu, G. J. Foshini, M. J. Gans and J. M. Kahn, "Fading Correlation and Its Effect on the Capacity of Multielement Antenna Systems", IEEE Transactions on Communications, Vol. 48, No. 3, pp. 502-512, 2000. [ Links ]
[17] R. Parra-Michel, A. Alcocer-Ochoa, A. Sanchez-Hernandez and V. Kontorovich, " MIMO Channel Modeling and Simulation", in Recent Advances in Signal Processing, I-Tech Education and Publishing KG, ISBN 978-953-7619-41-1. [ Links ]
[18] J.R. Fonollosa, R. Gaspa, X. Mestre, A. Pages, M. Heikkila, J.P. Kermoal, L. Schumacher, A. Pollard and J. Ylitalo, "The IST METRA Project", IEEE Communications Magazine, Vol. 40, No. 7, pp. 78-86, 2002. [ Links ]
[19] F. Molish, H. Asplund, R. Heddergott, M. Steinbauer and T. Zwick, "The COST259 Directional Channel Model - Part I: Overview and Methodology", IEEE Transactions on Wireless Communications, Vol. 5, No. 12, pp. 3421-3433, 2006. [ Links ]
]]>[20] S. Sesia, I. Toufik and M. Baker, "LTE: The UMTS Long Term Evolution, From Theory to Practice", John Wiley & Sons Ltd, West Sussex, UK, 2009. [ Links ]
[21] J. Cortez, M. Bazdresch and A. Garcia, "Low Complexity Detector for STBC-VBLAST Architecture Based on SQRD Decomposition", IEEE Proceedings of 20th Personal, Indoor and Mobile Radio Communications Symposium (PIMRC 2009), September 2009, pp. 2549-2553. [ Links ]
[22] D. Wubben, R. Bohnke, J. Rinas, V. Kuhn and K.D. Kammeyer, "Efficient algorithm for decoding layered space-time codes", Electronics Letters, Vol. 37, No. 22, pp. 1348-1350, 2001. [ Links ]
[23] J. E. Volder, "The CORDIC trigonometric computing technique", IRE Transactions on Electronic Computers, vol. EC-8, pp.330-334 1959. [ Links ]
[24] C. Meng and J. Tuqan, "PRECODED STBC-VBLAST for MIMO Wireless Communication Systems", IEEE Proceedings of the International Conference on Acoustics, Speech and Signal Processing (ICASSP 2007), Vol. 3, pp. 337-340, May 2007. [ Links ]
]]>