Copyright © 2008 The Institute of Electronics, Information and Communication Engineers
Regular Section -- Letters -- Wireless Communication Technologies |
Full-Rate STBCs from Coordinate Interleaved Orthogonal Designs in Time-Selective Fading Channels
1 The authors are with the Wireless Networking and Communications Group, Department of Electrical & Computer Engineering, The University of Texas at Austin, Austin, TX, 78712-0240, USA. E-mail: Hoojin.Lee{at}freescale.com, 2 Presently, with Freescale Semiconductor, Inc., Austin, TX, 78729, USA.
Space-time block codes (STBCs) from coordinate interleaved orthogonal designs (CIODs) have attracted a great deal of attention due to their full-diversity and linear maximum likelihood (ML) decodability. In this letter, we propose a simple detection technique, particularly for full-rate STBCs from CIODs to overcome the performance degradation caused by time-selective fading channels. Furthermore, we evaluate the effects of time-selective fading channels and imperfect channel estimation on STBCs from CIODs by using a newly-introduced index, the results of which demonstrate that full-rate STBCs from CIODs are more robust against time-selective fading channels than conventional full-rate STBCs.
Key Words: wireless communications, space-time block codes (STBCs), coordinate interleaved orthogonal designs (CIODs), channel estimation errors, time-selective fading channel
Manuscript received September 19, 2007. Manuscript revised November 22, 2007.
Reference
[1] S.M. Alamouti, "A simple transmit diversity technique for wireless communications," IEEE J. Sel. Areas Commun., vol.16, no.8, pp.1451–1458, Oct. 1998. [2] V. Tarokh, H. Jafarkhani, and A.R. Calderbank, "Space-time block code from orthogonal designs," IEEE Trans. Inf. Theory, vol.45, no.5, pp.1456–1467, July 1999. [3] C.B. Papadias and G.J. Foschini, "An open-loop transmit diversity techinique for systems employing four transmitter antennas," AT&T Bell Labs, Tech. Memo., Oct. 2000. [4] H. Jafarkhani, "A quasi-orthogonal space-time block code," IEEE Trans. Commun., vol.49, no.1, pp.1–4, Jan. 2001. [5] W. Su and X. Xia, "Signal constellations for quasi-orthogonal space-time block codes with full diversity," IEEE Trans. Inf. Theory, vol.50, no.11, pp.2331–2347, Oct. 2004. [6] M.Z.A. Khan and B.S. Rajan, "Single-symbol maximum likelihood decodable linear STBCs," IEEE Trans. Inf. Theory, vol.52, no.5, pp.2062–2091, May 2006. [7] T.A. Tran and A.B. Sesay, "A generalized linear quasi-ML decoder of OSTBCs for wireless communications over time-selective fading channels," IEEE Trans. Wirel. Commun., vol.3, no.3, pp.855–864, May 2004. [8] A. Vielmon, Y. Li, and J.R. Barry, "Performance of Alamouti transmit diversity over time-varying Rayleigh-fading channels," IEEE Trans. Wirel. Commun., vol.3, no.5, pp.1369–1373, Sept. 2004. [9] D.-B. Lin, P.-H. Chiang, and H.-J. Li, "Performance analysis of two-branch transmit diversity block-coded OFDM systems in time-varying multipath Rayleigh-fading channels," IEEE Trans. Veh. Technol., vol.54, no.1, pp.136–148, Jan. 2005. [10] F.-C. Zheng and A.G. Burr, "Signal detection for non-orthogonal space-time block coding over time-selective fading channel," IEEE Commun. Lett., vol.8, no.8, pp.491–493, Aug. 2004. [11] J.G. Andrews, A. Ghosh, and R. Muhamed, Fundamentals of WiMAX, Prentice-Hall, 2007.
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