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Modeling of Diode Reverse Characteristics01:14

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A Link-Level Simulator of the cdma2000 Reverse-Link Physical Layer.

H Gharavi1, F Chin1, K Ban1

  • 1National Institute of Standards and Technology, Gaithersburg, MD 20899-8920.

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|July 15, 2016
PubMed
Summary
This summary is machine-generated.

This study models the cdma2000 reverse link, evaluating how rake receiver design impacts performance in multipath fading. The findings offer insights into optimizing 3G cdma2000 technology for enhanced mobile communication systems.

Keywords:
CDMA (code division Multiple Access)IMT 2000cdma2000rake receiverreverse linkthird generation mobile systems (3G)

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Area of Science:

  • Telecommunications Engineering
  • Wireless Communication Systems

Background:

  • cdma2000 is an evolutionary enhancement of IS-95 standards, supporting 3G services.
  • It has two phases: 1XRTT (1.25 MHz bandwidth) and 3XRTT (5 MHz bandwidth for higher data rates).
  • The reverse link transmits from subscriber to base station.

Purpose of the Study:

  • To describe a software model of the cdma2000 reverse link.
  • To evaluate the effect of rake receiver design parameters on system performance.
  • To assess performance under various multipath fading conditions for 3XRTT operation.

Main Methods:

  • Developed generic cdma2000 reverse link models using SPW software.
  • Included all six reverse link radio configurations and data rates.
  • Evaluated rake receiver performance using the vehicular IMT-2000 channel model and cdma2000 link budget.

Main Results:

  • The software model accurately represents cdma2000 reverse link functionalities.
  • Rake receiver design parameters significantly affect system performance in multipath environments.
  • Performance evaluations were conducted for Spreading Rate 3 (3XRTT) operation.

Conclusions:

  • The developed model serves as a valuable tool for analyzing cdma2000 system performance.
  • Optimizing rake receiver design is crucial for achieving robust 3G cdma2000 communication.
  • The study provides a basis for further research in advanced wireless system design.