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Single-Carrier Frequency-Domain Equalization for Space-Time Coded Systems Over Multipath Channels

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3 Author(s)
Yang Yang ; Dept. of Electr. & Comput. Eng., Lehigh Univ., Bethlehem, PA ; Yong Huat Chew ; Tjeng Thiang Tjhung

In this paper, we study various frequency-domain equalizers (FDE) for single-carrier space-time block coded transmissions over frequency-selective fading channels. The linear and decision feedback equalizers based on zero forcing (ZF) and minimum mean-square error (MMSE) criteria are considered. These methods offer different tradeoff in terms of performance and the a priori knowledge of the data and receiver noise statistics, which is discussed. Besides, we also consider the adaptive FDE based on some low-complexity block-wise recursive algorithms, which obviates the need for distinct channel estimation and realizes joint channel estimation and equalization. Performance of these FDE schemes are investigated by applying them to the EDGE system in the multipath fading environment. Simulation results demonstrate their effectiveness and also provide implications for selection of these FDE schemes in practice

Published in:

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd  (Volume:5 )

Date of Conference:

7-10 May 2006