Abstract
Within the context of CDMA, in comparison to the standard single sequence signaling (L = 1, L is the number of sequences per symbol), a multi-sequence based trellis-coded-modulation (TCM) (L ≥ 2) - also called orthogonal plane sequence modulation (OPSM), exhibits both better cross-correlation properties and good distance prǒles,especially for data rate Rb ≥ 2 bits/s/Hz. In correlated Rayleigh fading channels, despite the time diversity reduction in TCM, the simulation results show that trellis-coded CDMA (TC-CDMA) system based on OPSM outperforms standard convolutionaily-coded CDMA systems. Compared to TC-CDMA with parallel transitions, TC-CDMA without parallel transitions is superior due to its increased time diversity.
| Original language | English |
|---|---|
| Pages (from-to) | 1845-1849 |
| Number of pages | 5 |
| Journal | Conference Record - International Conference on Communications |
| Volume | 3 |
| State | Published - 2002 |
| Event | 2002 International Conference on Communications (ICC 2002) - New York, NY, United States Duration: 28 Apr 2002 → 2 May 2002 |