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DESIGN AND INVESTIGATIONOF CDMA TRANSCEIVER BASED WAVELET TRANSFORMS WITH ADAPTIVE ANTENNA SYSTEM | ||
| AL-TAQANI | ||
| Article 1, Volume 29, Issue 1, 2016, Pages 0-0 | ||
| Author | ||
| Mohammed AboudKadhim | ||
| Abstract | ||
| Suppression of Multiuser Interference (MUI) and mitigation of multipath effectssignals constitute major challenges in the design of third-generation wireless mobile systems. The objective of this paper is to find the most suitable technique for implementation in Fourth Generation (4G) communication systems. An Adaptive Antenna System (AAS) has been distributed at the receiver module to decrease the fading effectssignal caused by proposed Stanford University Interim (SUI) Channel Models. AAS uses beamforming system to focus the wireless beam between the base station and the subscriber station. The Least Mean Square (LMS) system is used at the receiver to direct the main beam towards the wanted Line of Sight (LOS) signal and nulls to the multipath signals. It has been verified through this thought byMATLAB simulations that the performance of the system important advances by AAS approximately 3dB, where beamforming is employed in the direction of preferred user. The performance of the scheme can be more developed by increasing the number of antennas at receiver. | ||
| Keywords | ||
| CDMA; AAS; DWT; LMS | ||
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