New hybrid frequency reuse method for packet loss minimization in LTE network.

Journal of advanced research · 2015 · Benefit · Insufficient evidence

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BenefitInsufficient evidencePaper 2999

Study snapshot

PublicationJournal of advanced research · 2015

Study typeengineering

Reported directionBenefit

Evidence ratingInsufficient

Abstract

This paper investigates the problem of inter-cell interference (ICI) in Long Term Evolution (LTE) mobile systems, which is one of the main problems that causes loss of packets between the base station and the mobile station. Recently, different frequency reuse methods, such as soft and fractional frequency reuse, have been introduced in order to mitigate this type of interference. In this paper, minimizing the packet loss between the base station and the mobile station is the main concern. Soft Frequency Reuse (SFR), which is the most popular frequency reuse method, is examined and the amount of packet loss is measured. In order to reduce packet loss, a new hybrid frequency reuse method is implemented. In this method, each cell occupies the same bandwidth of the SFR, but the total system bandwidth is greater than in SFR. This will provide the new method with a lot of new sub-carriers from the neighboring cells to reduce the ICI which represents a big problem in many applications and causes a lot of packets loss. It is found that the new hybrid frequency reuse method has noticeable improvement in the amount of packet loss compared to SFR method in the different frequency bands. Traffic congestion management in Intelligent Transportation system (ITS) is one of the important applications that is affected by the packet loss due to the large amount of traffic that is exchanged between the base station and the mobile node. Therefore, it is used as a studied application for the proposed frequency reuse method and the improvement in the amount of packet loss reached 49.4% in some frequency bands using the new hybrid frequency reuse method.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeengineering

Effect directionbenefit

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

The paper evaluates Soft Frequency Reuse (SFR) and implements a new hybrid frequency reuse method intended to reduce inter-cell interference and packet loss in LTE systems. The new hybrid method showed noticeable improvement in packet loss compared with SFR across different frequency bands, with reported improvement reaching 49.4% in some frequency bands in an ITS traffic congestion management application.

Outcomes measured

Inter-cell interference (ICI)
Packet loss between base station and mobile station
Packet loss improvement vs Soft Frequency Reuse (SFR)
Traffic congestion management application in Intelligent Transportation System (ITS)

View raw extracted JSON

{
  "study_type": "engineering",
  "exposure": {
    "band": null,
    "source": "LTE network (base station–mobile station communication)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Inter-cell interference (ICI)",
    "Packet loss between base station and mobile station",
    "Packet loss improvement vs Soft Frequency Reuse (SFR)",
    "Traffic congestion management application in Intelligent Transportation System (ITS)"
  ],
  "main_findings": "The paper evaluates Soft Frequency Reuse (SFR) and implements a new hybrid frequency reuse method intended to reduce inter-cell interference and packet loss in LTE systems. The new hybrid method showed noticeable improvement in packet loss compared with SFR across different frequency bands, with reported improvement reaching 49.4% in some frequency bands in an ITS traffic congestion management application.",
  "effect_direction": "benefit",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "LTE",
    "inter-cell interference",
    "frequency reuse",
    "soft frequency reuse",
    "fractional frequency reuse",
    "packet loss",
    "sub-carriers",
    "intelligent transportation systems",
    "traffic congestion management"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1016/j.jare.2014.10.008
PubMed: 26644933

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