| Presentation | 2002/10/14 Chip Interleaved Multicode DS-CDMA with MMSEC Takeshi ITAGAKI, Tomoki SAO, Deepshika GARG, Fumiyuki ADACHI, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Direct sequence code division multiple access (DS-CDMA) provides flexible data transmissions in wide range of data rates by the use of orthogonal multicode multiplexing. However, in a multipath fading environment, the transmission performance of multicode DS-CDMA degrades as that of single code DS-CDMA does. Chip interleaving is known to improve the bit error rate (BER) performance of the single code transmission by altering the fading channel into severely time selective fading channel. However, this partially destroys orthogonal property among spreading codes and thus, significantly degrades the BER performance of multicode DS-CDMA. In this paper, we propose a combination of chip interleaving and minimum mean square error combining (MMSEC) to improve the multicode DS-CDMA transmission performance. It is confirmed by computer simulation that the joint use of chip interleaving and MMSEC significantly improves the BER performance of multicode DS-CDMA and achieves better performance compared to the single code DS-CDMA using chip interleaving and maximal ratio combining (MRC). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multicode DS-CDMA / chip interleaving / MMSEC / fading channel |
| Paper # | SST2002-29 |
| Date of Issue |
| Conference Information | |
| Committee | SST |
|---|---|
| Conference Date | 2002/10/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Spread Spectrum Technology (SST) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Chip Interleaved Multicode DS-CDMA with MMSEC |
| Sub Title (in English) | |
| Keyword(1) | multicode DS-CDMA |
| Keyword(2) | chip interleaving |
| Keyword(3) | MMSEC |
| Keyword(4) | fading channel |
| 1st Author's Name | Takeshi ITAGAKI |
| 1st Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Tomoki SAO |
| 2nd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Deepshika GARG |
| 3rd Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 4th Author's Name | Fumiyuki ADACHI |
| 4th Author's Affiliation | Dept. of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| Date | 2002/10/14 |
| Paper # | SST2002-29 |
| Volume (vol) | vol.102 |
| Number (no) | 391 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |