A Time-Frequency Interleave Structure of Single Carrier FDE over Deep Fading Wireless Channels

Liang ZHU  Yukui PEI  Ning GE  Jianhua LU  

Publication
IEICE TRANSACTIONS on Communications   Vol.E93-B   No.10   pp.2800-2803
Publication Date: 2010/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2800
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
FDE,  time-frequency interleave,  single carrier,  deep fading wireless channels,  

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Summary: 
We propose a time-frequency interleave (TFI) structure of single carrier (SC) frequency domain equalization (FDE) to combat spectral nulls of wireless channels. Permuted copies of block data are transmitted in the TFI-FDE, providing the same diversity order as maximal-ratio receiver combining. The spectral nulls are compensated by uncorrelated spectral components of the same channel. It shows 4 dB diversity gains at BER of 10-2 over an indoor channel. The TFI-FDE is computationally-efficient in combination with fast Fourier transform. This TFI-FDE fits SC systems with single antenna. It needs no channel state information at the transmitter.