A 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 multi-level 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 TS125.213.

Original languageEnglish
Title of host publicationIEEE International Symposium on Industrial Electronics
Pages2216-2218
Number of pages3
DOIs
Publication statusPublished - 2009
EventIEEE International Symposium on Industrial Electronics, IEEE ISIE 2009 - Seoul
Duration: 5 Jul 20098 Jul 2009

Other

OtherIEEE International Symposium on Industrial Electronics, IEEE ISIE 2009
CitySeoul
Period5/7/098/7/09

Fingerprint

Bit error rate
Seed
MATLAB
Modulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering

Cite this

Hashim, F. H., Othman, M., & Ismail, M. (2009). A random matrix spreading code generator for WCDMA rake receiver. In IEEE International Symposium on Industrial Electronics (pp. 2216-2218). [5213125] https://doi.org/10.1109/ISIE.2009.5213125

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

IEEE International Symposium on Industrial Electronics. 2009. p. 2216-2218 5213125.

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

Hashim, FH, Othman, M & Ismail, M 2009, A random matrix spreading code generator for WCDMA rake receiver. in IEEE International Symposium on Industrial Electronics., 5213125, pp. 2216-2218, IEEE International Symposium on Industrial Electronics, IEEE ISIE 2009, Seoul, 5/7/09. https://doi.org/10.1109/ISIE.2009.5213125
Hashim FH, Othman M, Ismail M. A random matrix spreading code generator for WCDMA rake receiver. In IEEE International Symposium on Industrial Electronics. 2009. p. 2216-2218. 5213125 https://doi.org/10.1109/ISIE.2009.5213125
Hashim, Fazida Hanim ; Othman, Masuri ; Ismail, Mahamod. / A random matrix spreading code generator for WCDMA rake receiver. IEEE International Symposium on Industrial Electronics. 2009. pp. 2216-2218
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