Development of a novel random matrix spreading code generator for WCDMA rake receiver

Fazida Hanim Hashim, Masuri Othman, Mahamod Ismail

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes a proposed spreading method to improve the Bit Error Rate (BER) and user capacity in WCDMA system. The method is applied to the system up-link. The spreading process includes a new proposed random matrix constructed using the Walsh code generator, called randmat spreading code generator. Conventionally, the selection of the Walsh seed is highly dependable on the Spreading Factor (SF) of the system. This spreading factor has to be in the power of 2. However, by carefully selecting a variable n, to result in SF-n for the input seed to the Walsh code, our simulation results show that the BER can improve dramatically. The proposed multilevel modulation method could also increase the data rate and user capacity of the WCDMA system. To test the functionality of our proposed spreading method, we use a simulation model using MATLAB that is close to the behavior of a mobile station as specified in the WCDMA standards, specifically ETSI TS 125.211 and ETSI TS 125.213.

Original languageEnglish
Title of host publication2007 5th Student Conference on Research and Development, SCORED
DOIs
Publication statusPublished - 2007
Event2007 5th Student Conference on Research and Development, SCORED - Selangor
Duration: 11 Dec 200712 Dec 2007

Other

Other2007 5th Student Conference on Research and Development, SCORED
CitySelangor
Period11/12/0712/12/07

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simulation model
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simulation

Keywords

  • Bit error rate (BER)
  • Rake receiver
  • Spreading code
  • Walsh code
  • WCDMA

ASJC Scopus subject areas

  • Education
  • Management Science and Operations Research

Cite this

Hashim, F. H., Othman, M., & Ismail, M. (2007). Development of a novel random matrix spreading code generator for WCDMA rake receiver. In 2007 5th Student Conference on Research and Development, SCORED [4451416] https://doi.org/10.1109/SCORED.2007.4451416

Development of a novel random matrix spreading code generator for WCDMA rake receiver. / Hashim, Fazida Hanim; Othman, Masuri; Ismail, Mahamod.

2007 5th Student Conference on Research and Development, SCORED. 2007. 4451416.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hashim, FH, Othman, M & Ismail, M 2007, Development of a novel random matrix spreading code generator for WCDMA rake receiver. in 2007 5th Student Conference on Research and Development, SCORED., 4451416, 2007 5th Student Conference on Research and Development, SCORED, Selangor, 11/12/07. https://doi.org/10.1109/SCORED.2007.4451416
Hashim FH, Othman M, Ismail M. Development of a novel random matrix spreading code generator for WCDMA rake receiver. In 2007 5th Student Conference on Research and Development, SCORED. 2007. 4451416 https://doi.org/10.1109/SCORED.2007.4451416
Hashim, Fazida Hanim ; Othman, Masuri ; Ismail, Mahamod. / Development of a novel random matrix spreading code generator for WCDMA rake receiver. 2007 5th Student Conference on Research and Development, SCORED. 2007.
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