Abstract
We combine error-control coding with linear precoding (LP) for flat-fading channels, as well as for wireless orthogonal frequency-division multiplexing transmissions through frequency-selective fading channels. The performance is analyzed and compared with the corresponding error-control-coded system without precoding. By wedding LP with conventional error-control coding, the diversity order becomes equal to the error-control code's minimum Hamming distance times the precoder size. We also derive a low-complexity turbo-decoding algorithm for joint coded-precoded transmissions. We analyze the decoding complexity and compare it with an error-control-coded system without LP. Extensive simulations with convolutional and turbo codes for HiperLan/2 channels support the analysis and demonstrate superior performance of the proposed system.
Original language | English (US) |
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Pages (from-to) | 832-842 |
Number of pages | 11 |
Journal | IEEE Transactions on Wireless Communications |
Volume | 3 |
Issue number | 3 |
DOIs | |
State | Published - May 1 2004 |
Keywords
- Coding
- Diversity
- Fading
- HiperLan
- Linear precoding (LP)
- Orthogonal frequency-division multiplexing (OFDM)