Pre-Decorrelation for Coded DS-CDMA System with Space-Time Block Coding
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International Journal of Engineering Trends and Technology (IJETT) |  |
| © 2018 by IJETT Journal | ||
| Volume-66 Number-3 |
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| Year of Publication : 2018 | ||
| Authors : F. S. Elhosarey, Ahmed A. Abouelfadl, Youssef A. Mobarak, S. A. Deraz, M. El-ShahatDessouki, A. I. Elbasiouny, A. El-Bahnasawy |
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| DOI : 10.14445/22315381/IJETT-V66P229 |
Citation
MLA Style: F. S. Elhosarey, Ahmed A. Abouelfadl, Youssef A. Mobarak, S. A. Deraz, M. El-ShahatDessouki, A. I. Elbasiouny, A. El-Bahnasawy "Pre-Decorrelation for Coded DS-CDMA System with Space-Time Block Coding" International Journal of Engineering Trends and Technology 66.3 (2018): 191-196.
APA Style:F. S. Elhosarey, Ahmed A. Abouelfadl, Youssef A. Mobarak, S. A. Deraz, M. El-ShahatDessouki, A. I. Elbasiouny, A. El-Bahnasawy (2018). Pre-Decorrelation for Coded DS-CDMA System with Space-Time Block Coding. International Journal of Engineering Trends and Technology, 66(3), 191-196.
Abstract
This paper proposes an improved pre-decorrelating approach for the coded direct sequence code division multiple access (DS-CDMA) multiuser detection (MUD) with space time coding (STBC). The main contribution of this work is the simplification of the mobile station by performing the decorrelation process at the base station. This is achieved by using the pre-decorrelation matrix at the base station them using a simple matched filter at the mobile station. The performance of the model is evaluated against the conventional decorrelating detector. It is found that the proposed model is superior due to the simplicity of the mobile station with better performance than the conventional one. The drawback of our method is increase in the transmitting energy by a factor to keep the transmitted power constant as the system without using pre-decorrelation detection.
Reference
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Keywords
Decorrelating Detector, Pre-Decorrelation, MIMO STBC, Alamouti, Turbo coding.