Orthogonal Frequency Division Multiplexing with Diversity for Future Wireless Systems

Orthogonal Frequency Division Multiplexing with Diversity for Future Wireless Systems

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The book examines several aspects of Orthogonal Frequency Division Multiplexing (OFDM) employing linear diversity techniques such as inter-carrier interference, bit error rate, peak to average power ...
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Fast ML Decoding for OSTBC and QOSTBC Coded MIMO-OFDM Systems with Clipping

Pp. 163-218 (56)

Pei Xiao, Zihuai Lin and Jian Mao


In this chapter, we study transmit diversity scheme employed in multipleinput, multiple-output (MIMO) systems and analyze its performance theoretically in random fading channels under different conditions, e.g. with and without spatial correlations, with and without transmit antenna selection. The transmit diversity scheme in its original form does not take the frequency selectivity of the channel into account, therefore it has to be modified in order to be applicable for real life applications. To this end, we introduce two solutions to combat the intersymbol interference caused by frequency selective channels and in the meantime, exploit the spatial and multi-path diversities with simple linear processing at the receiver. We aim at providing readers with a comprehensive view on different aspects of MIMO transmit diversity and a practical guideline on how to design a wireless communication system with transmit diversity.


MIMO, transmit diversity, space-time Trellis coding, space-time coding, orthogonal space-time block code


The Institute of Electronics, Communications and Information Technology, Queen's University Belfast, UK.