Abstract
Coded modulation scheme of high-coding gain is presented for flat fading channels. The scheme introduces a product construction that employs two types of codes:"standard"good codes and codes that are more suitable for the fading environment. Short-blocklength codes of unique features are, thus, obtained for the bandwidth-limited regime. Using this approach, codes of bandwidth efficiencies 1, 2, and 3 bits/s/Hz are detailed. An iterative decoding algorithm for this product construction is devised. It relies on separate columns/rows decoding linked by (reliability) information transfer. Simulation results reveal that these codes compare favorably with known codes of short block-length when perfect channel state information is available to the receiver. The proposed approach is easily extended for the frequency-selective fading channel with multicarrier signaling.
| Original language | English |
|---|---|
| Pages (from-to) | 416-428 |
| Number of pages | 13 |
| Journal | IEEE Transactions on Information Theory |
| Volume | 53 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2007 |
Keywords
- Diversity transform
- Fading channels
- Iterative decoding/estimation
- Product codes