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Abstract
En 中文
In this letter, a new hybrid automatic repeat request (ARQ) approach is presented to enhance receiver performance for communication systems employing forward error-correction codes in frequency-selective fading environments. This new approach involves a simple modification to the traditional turbo equalizer by combining multiple ARQ transmissions via integrated channel equalization. This modification leads to better computational efficiency, better exploitation of channel diversity, better channel-estimation ability, and improved performance (frame-error rates) when concatenated with an outer code. These improvements are verified through evaluations of extrinsic information transfer charts and ARQ simulations when compared with iterative combining of multiple transmissions.
Keywords:
automatic repeat request (ARQ)
binary precoding
fading channels
integrated equalization (IEQ)
intersymbol interference (ISI)
retransmission diversity
Journal
IF:
8.3
Papers:
1.2W
Citations:
3.6W
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Cited Papers
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