Data Throughput in a Multi-Rate CDMA Reverse Link: Comparing Optimal Spatial Combining vs. Maximal Ratio Combining

Abstract

The Reverse Link (mobile to base station) average data rate carrying capacity of a CDMA communications system is analyzed comparing different antenna array spatial combining algorithms: Optimum Combining (OC) versus Maximal Ratio Combining (MRC) in a multi-user system employing multi-rate traffic (combined voice and data users) over Rayleigh faded channels. Typical CDMA power and interference relationships for an embedded multi-cell CDMA Reverse Link are discussed in the context of spatial OC algorithms and related to the total Reverse Link data throughput. Other-cell interference and chosen system rise-overthermal metrics are found to limit the possible gain increase using OC vs. MRC.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2001
Accession Number
ADA506813

Entities

People

  • James R. Zeidler
  • Joseph P. Burke

Organizations

  • Naval Information Warfare Systems Command

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Antennas
  • Arrays
  • Background Noise
  • Cells
  • Code Division Multiple Access
  • Communication Systems
  • Data Rate
  • Department Of Defense
  • Digital Communications
  • Engineering
  • Multiple Access
  • Noise
  • Payload
  • Steady State
  • Throughput
  • United States Government

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.
  • Regression Analysis.