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Improved Alamouti STBC Multi-Antenna System Using Hadamard Matrices
Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, UK
Department of Electronic Engineering, University of Westminster, Westminster, UK
Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, UK
Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, UK
Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, UK
- 1 Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, UK
- 2 Department of Electronic Engineering, University of Westminster, Westminster, UK
- 3 Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, UK
- 4 Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, UK
- 5 Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, UK
International Journal of Communications, Network and System Sciences·Volume 07 (2014)·Pages 83–89·Published 13 March 2014·DOI10.4236/ijcns.2014.73010
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Abstract
To achieve multiple input multiple output (MIMO) in wireless communication, the orthogonal space-time block coding (OSTBC) is evaluated next. At first, the OSTBC design is extended to include Hadamard matrix, referred to in this work, as traditional Hadamard OSTBC. Next, the Hadamard matrix is imposed on the conventional OSTBC, which is referred to, in this work as, Alamouti-Hadamard STBC. Both the traditional Hadamard OSTBC and the conventional STBC are compared with the Alamouti-Hadamard STBC. It will be shown that imposing the Hadamard conditions over the conventional OSTBC, the performance of the OSTBC 2-transmit antenna scheme can be significantly improved in terms of BER performance. All propositions are well supported with analytical derivations.
KeywordsSTBCMIMOHadamard
- Proakis, J. and Salehi, M. (2008) Digital Communications. 5th Edition, McGraw-Hill, Asia.
- Zhang, W., Xiang-Gen, X. and Ben Letaief, K. (2007) Space-Time/Frequency Coding for MIMO-OFDM in Next Generation Broadband Wireless Systems. IEEE Wireless Communications, 14, 32-43.
- Anoh, K.O., Abd-Alhameed, R.A., Chukwu, M., Buhari, M. and Jones, S.M. (2013) Towards a Seamless Future Generation Network for High Speed Wireless Communications. International Journal of Advanced Computer Science & Applications, 4.
- Garg, V. (2010) Wireless Communications & Networking: Morgan Kaufmann.
- Jafarkhani, H. (2005) Space-Time Coding: Theory and Practice. Cambridge University Press, Cambridge.
- Alamouti, S.M. (1998) A Simple Transmit Diversity Technique for Wireless Communications. IEEE Journal on Selected Areas in Communications, 16, 1451-1458.
- Dama, Y.A.S., Abd-Alhameed, R.A., Jones, S.M.R., Migdadi, H.S.O. and Excell, P.S. (2011) A New Approach to Quasi-Orthogonal Space-Time Block Coding Applied to Quadruple Mimo Transmit Antennas. 4th International Conference on Internet Technologies & Applications, September 2011.
- Fazel, F. and Jafarkhani, H. (2008) Quasi-Orthogonal Space-Frequency and Space-Time-Frequency Block Codes for Mimo OFDM Channels. IEEE Transactions on Wireless Communications, 7, 184-192.
- Dama, Y., Abd-Alhameed, R., Ghazaany, T. and Zhu, S. (2013) A New Approach for OSTBC and QOSTBC. International Journal of Computer Applications, 67, 45-48.
- Anoh, K., Dama, Y., Abd-Alhameed, R. and Jones, S. (2014) A Simplified Improvement on the Design of QO-STBC Based on Hadamard Matrices. International Journal of Communications, Network and System Sciences, 7, 37.
- Sharma, N. and Papadias, C.B. (2003) Improved Quasi-Orthogonal Codes through Constellation Rotation. IEEE Transactions on Communications, 51, 332-335.
- Wang, D. and Xia, X.-G. (2005) Optimal Diversity Product Rotations for Quasiorthogonal STBC with MPSK Symbols. IEEE Communications Letters, 9, 420-422.
- Xian, L. and Liu, H. (2005) Optimal Rotation Angles for Quasi-Orthogonal Space-Time Codes with PSK Modulation. IEEE Communications Letters, 9, 676-678.
- Anoh, K.O.O., Abd-alhameed, R.A., Noras, J.M. and Jones, S.M.R. (2013) Wavelet Packet Transform Modulation for Multiple Input Multiple Output Applications. IJCA, 63, 46-51.