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) |
|---|---|
| Pages (from-to) | 832-842 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 3 |
| Issue number | 3 |
| DOIs | |
| State | Published - May 2004 |
Bibliographical note
Funding Information:Manuscript received December 13, 2001; revised October 30, 2002; accepted March 19, 2003. The editor coordinating the review of this paper and approving it for publication is A. F. Molisch. This work was supported by the National Science Foundation (NSF) Wireless Initiative Grant 99-79443, by the NSF Grant 01-0516, and by the U.S. Army Research Laboratory (ARL) under the Collaborative Technology Alliance (CTA) Program, Cooperative Agreement DAAD DAAD 19-01-2-011. This paper was presented in part at the IEEE Vehicular Technology Conference, Birmingham, AL, May 2002, and at the European Wireless Conference, Florence, Italy, February 2002.
Keywords
- Coding
- Diversity
- Fading
- HiperLan
- Linear precoding (LP)
- Orthogonal frequency-division multiplexing (OFDM)