International Journal of Advanced Networking and Applications

J. Jeya A. Celin ¹, V. Umadevi Chezhian ²

Affiliations
1 Noolul Islam University, Tamilnadu, IN
2 Department of Computer Science, University of Asmara, ER

Abstract

Several types of Rake Receivers like A-Rake, S-Rake, P-Rake, Adaptive frequency Rake, Time frequency Rake, Conventional MMSE Rake and Adaptive MMSE rake are used for WCDMA. In this paper we observed that the BER performance of the Adoptive MMSE Rake receiver gives better result in WCDMA. The comparative analysis proved that the Adaptive MMSE Rake Receiver is much better than Conventional Rake Receiver. Both Genetic Algorithm (GA) and as well as Conventional algorithm are derived for WCDMA environment.

Keywords

Adaptive MMSE Rake Receiver, Conventional Rake Receiver, Genetic Algorithm, Conventional Algorithm.

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V. Umadevi Chezhian ¹, K. Ramar ²

Affiliations
1 Department of Computer Science, University of Asmara, ER
2 Department of Computer Science Engineering, National Engineering College, Kovilpatti, IN

Abstract

The third-generation universal mobile telecommunications system uses the high signal bandwidth for the WCDMA system (5 MHz) allows the received signal to be split into distinct multipath with high resolution. The rake receiver combines the received signals from different paths into a composite signal with substantially better characteristics for demodulation than a single path and maximizing the amount of received signal energy. This paper derived both the combination of rake receiver and equalizer. The output of the rake receiver is fed to the equalizer for filter the white noise presence in the receiving signal. This will give us a good reception of WCDMA signal at the receiver end.

Keywords

Equalizer, Multipath, Rake Receiver, WCDMA, White Noise.

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