Open AccessJoint turbo equalisation and carrier synchronisation for SC‐FDE schemes
Author(s) -
Dinis Rui,
Araújo Teresa,
Pedrosa Pedro,
Nunes Fernando
Publication year - 2010
Publication title -
european transactions on telecommunications
Language(s) - English
Resource type - Journals
eISSN - 1541-8251
pISSN - 1124-318X
DOI - 10.1002/ett.1377
Subject(s) - equaliser , turbo , sc fde , carrier frequency offset , computer science , frequency offset , turbo equalizer , frequency domain , fast fourier transform , joint (building) , electronic engineering , algorithm , bit error rate , offset (computer science) , turbo code , orthogonal frequency division multiplexing , telecommunications , channel (broadcasting) , decoding methods , engineering , low density parity check code , error floor , architectural engineering , automotive engineering , computer vision , programming language
In this paper we consider the use of single carrier (SC) modulations combined with frequency‐domain equalisation (FDE) in future broadband wireless systems. We propose iterative receiver structures with joint equalisation and carrier synchronisation. The proposed receivers can be regarded as modified frequency‐domain turbo equalisers where we perform a decision‐directed frequency offset estimation within each iteration of the turbo equaliser. Our performance results show that the proposed receiver structure has good bit error rate (BER), even with moderate frequency offsets and in severely time‐dispersive channels. Moreover, our receiver has a relatively low implementation complexity, due to its fast Fourier transform (FFT)‐based frequency‐domain implementation. Copyright © 2010 John Wiley & Sons, Ltd.
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