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Related Experiment Video

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Robust Baseband Compression Against Congestion in Packet-Based Fronthaul Networks Using Multiple Description Coding.

Seok-Hwan Park1, Osvaldo Simeone2, Shlomo Shamai Shitz3

  • 1Division of Electronic Engineering, Chonbuk National University, Jeonju 54896, Korea.

Entropy (Basel, Switzerland)
|December 3, 2020
PubMed
Summary
This summary is machine-generated.

This study introduces multiple description coding (MDC) for Cloud Radio Access Network (C-RAN) fronthaul networks. MDC improves signal quality by efficiently utilizing multiple routes, outperforming traditional path diversity.

Keywords:
broadcast codingcloud radio access networkcongestioneCPRImultiple description codingpacket-based fronthaulrobust compression

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Area of Science:

  • Telecommunications Engineering
  • Computer Networking
  • Signal Processing

Background:

  • Modern Cloud Radio Access Networks (C-RAN) utilize packet-based fronthaul transport networks.
  • These networks often feature multi-hop architectures incorporating network function virtualization (NFV) and software-defined networking (SDN).

Purpose of the Study:

  • To investigate joint uplink radio and fronthaul transmission strategies for C-RANs with packet-based fronthaul.
  • To introduce and evaluate a novel multiple description coding (MDC) strategy for efficient fronthaul packet transmission.

Main Methods:

  • A multiple description coding (MDC) strategy operating at the baseband signal level is proposed.
  • The MDC strategy is designed to efficiently utilize multiple routes for fronthaul packets from remote radio heads (RRHs) to the cloud.
  • Performance is compared against traditional path diversity schemes.

Main Results:

  • The proposed MDC strategy enhances received signal quality under low network congestion.
  • MDC ensures improved quality when more fronthaul packets arrive within the deadline.
  • Numerical results validate the advantages of MDC over traditional path diversity.

Conclusions:

  • Multiple description coding offers a superior approach for managing fronthaul traffic in C-RANs.
  • The MDC strategy effectively improves signal quality and network efficiency in packet-based fronthaul environments.
  • This method provides a valuable alternative to conventional multi-route reception or coding techniques.