Abstract
In this paper, we study the coded modulation schemes for pre-transformed (PT) Orthogonal Frequency Division Multiplexing (OFDM) systems, in short PT-OFDM systems.
For quasi-static fading channels, we show that the signal to noise ratio (SNR) for different elements in a PT block is constant due to the spreading property of the PT matrix.
Based on this observation, we propose trellis coded modulation (TCM) as the better coded modulation scheme for PT-OFDM system compared to bit interleaved coded modulation (BICM).
This is further verified by a the BER comparison of coded PT-OFDM systems using different coded modulation schemes through computer simulations.
| Original language | English |
|---|---|
| Title of host publication | 2005 IEEE 62nd vehicular technology conference, VTC-2005-Fall |
| Place of Publication | New York |
| Publisher | Institute of Electrical and Electronics Engineers |
| Pages | 564-567 |
| Volume | 1 |
| ISBN (Print) | 0-7803-9152-7 |
| DOIs | |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | 62nd Vehicular Technology Conference (VTC 2005-Fall) - Dallas, TX, United States Duration: 25 Sep 2005 → 28 Sep 2005 Conference number: 62 |
Conference
| Conference | 62nd Vehicular Technology Conference (VTC 2005-Fall) |
|---|---|
| Abbreviated title | VTC 2005-Fall |
| Country | United States |
| City | Dallas, TX |
| Period | 25/09/05 → 28/09/05 |
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Cite this
Wu, Y., Li, Y., & Sun, S. (2005). Coded modulation in pre-transformed OFDM systems. In 2005 IEEE 62nd vehicular technology conference, VTC-2005-Fall (Vol. 1, pp. 564-567). New York: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/VETECF.2005.1557975