| Presentation | 2005/2/23 Performance Evaluation of DS-CDMA Over Rayleigh Faded Multipath Channels Using All Rake and Selective Rake Receivers Mohammad Azizur RAHMAN, Shigenobu SASAKI, Jie ZHOU, Hisakazu KIKUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Simple-to-evaluate and accurate bit error probabilities are given for binary DS-CDMA communications over independent Rayleigh faded multipath channels while Rake type of receivers are used. By extending the simplified improved Gaussian approximation (SIGA) of Holtzman for multipath channels, we show the accurate results based on SIGA and compare those with widely used standard Gaussian approximation (SGA). By considering flat and exponentially decaying power delay profiles (PDP) of the multipath channel, we investigate the effect of spreading bandwidth and the number of combined paths on the multiple access performance of the system. In other words, we investigate the validity of SGA of multiple access interference (MAI) as compared to the more accurate SIGA for multipath channel while all Rake (ARake) and selective Rake (SRake) receivers are employed. We show that the SGA is accurate 1) for ARake while the spreading is low and 2) for SRake until some number of combined paths, beyond which it becomes optimistic. Additionally, we show that the effect of MAI is much less pronounced in an SRake while the number of combined paths is small. The multiple access performance of the receivers and the validity of SGA also depend on the shape of the PDP. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Code division multiaccess / multipath channel / Rake receiver / standard and improved Gaussian approximations |
| Paper # | WBS2004-88,A・P2004-269,RCS2004-356,MoMuC2004-139,MW2004-266 |
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| Committee | WBS |
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| Conference Date | 2005/2/23(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Wideband System(WBS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance Evaluation of DS-CDMA Over Rayleigh Faded Multipath Channels Using All Rake and Selective Rake Receivers |
| Sub Title (in English) | |
| Keyword(1) | Code division multiaccess |
| Keyword(2) | multipath channel |
| Keyword(3) | Rake receiver |
| Keyword(4) | standard and improved Gaussian approximations |
| 1st Author's Name | Mohammad Azizur RAHMAN |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, Niigata University() |
| 2nd Author's Name | Shigenobu SASAKI |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering, Niigata University |
| 3rd Author's Name | Jie ZHOU |
| 3rd Author's Affiliation | Department of Electrical and Electronic Engineering, Niigata University |
| 4th Author's Name | Hisakazu KIKUCHI |
| 4th Author's Affiliation | Department of Electrical and Electronic Engineering, Niigata University |
| Date | 2005/2/23 |
| Paper # | WBS2004-88,A・P2004-269,RCS2004-356,MoMuC2004-139,MW2004-266 |
| Volume (vol) | vol.104 |
| Number (no) | 672 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |