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Meeting the Challenge of Radio Interference in License-Exempt Bands, in NLOS and non-clear LOS conditions


With increasing numbers of service providers opting to use license-exempt radio frequency (RF) bands, the need to understand methods for overcoming the challenge of interference is critical. This white paper addresses the issue of interference in license-exempt bands and provides a number of approaches for its control and mitigation.

 


Table of Contents

  • Introduction
  • The Challenge of License-Exempt Deployments
  • Provisioning Carrier-Grade Services in License-Exempt Bands
    • Mechanism 1: Automatic Channel Selection (ACS)
    • Mechanism 2: Automatic Adaptive Rate (ACM)
    • Mechanism 3: Configurable Channel Bandwidth
    • Mechanism 4: Advanced Forward Error Correction (FEC)
    • Mechanism 5: Automatic Repeat Request (FARQ) Mechanism
    • Mechanism 6: Non-interrupted Transmission
    • Mechanism 7: Hub Site Synchronization
    • Mechanism 8: Orthogonal Frequency Division Multiplexing (OFDM)
    • Mechanism 9: Directional Antenna Design
    • Mechanism 10: Diversity
  • Summary

For the complete White Paper, download the PDF.