Analysis and characterization of the impact of frequency-selective interference on reporting period for next-generation wireless networks

Serhan Yarkan, Khalid Qaraqe

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In next-generation wireless networks (NGWNs), user equipment (UE) are required to send reports on their channel quality indicator (CQI) to maintain the overall service performance. In this regard, UE reports such as CQIs play a crucial role in interference management in NGWNs. Short reporting periods cause excessive amount of over-the-air signaling (overhead) in the network and negatively impact the battery life of UE, whereas long reporting periods cause interference management procedures not to instantaneously react to dynamically changing conditions. Therefore, in this study, a reporting mechanism that changes the reporting period in an adaptive manner is proposed. Interference is modeled as a composite stochastic process, which includes both shadowing and frequency-selective fading together. It is shown that the decorrelation distance of shadowing is the key parameter for such an adaptive reporting. Practical scenarios are considered in simulations, including different environmental and mobile speed classes. Performance evaluation is established by comparing the signaling overhead of the method proposed with those of traditional strategies such as deterministic/periodic and random reporting. Numerical and experimental results are presented, along with relevant discussions.

Original languageEnglish
Article number6227381
Pages (from-to)3813-3819
Number of pages7
JournalIEEE Transactions on Vehicular Technology
Volume61
Issue number8
DOIs
Publication statusPublished - 2012

Fingerprint

Wireless Networks
Wireless networks
Shadowing
Interference
Frequency selective fading
Fading
Random processes
Battery
Performance Evaluation
Stochastic Processes
Composite
Numerical Results
Scenarios
Composite materials
Experimental Results
Air
Simulation
Life
Class
Strategy

Keywords

  • Decorrelation
  • fading channels
  • interference
  • mobile communication

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Computer Networks and Communications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

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title = "Analysis and characterization of the impact of frequency-selective interference on reporting period for next-generation wireless networks",
abstract = "In next-generation wireless networks (NGWNs), user equipment (UE) are required to send reports on their channel quality indicator (CQI) to maintain the overall service performance. In this regard, UE reports such as CQIs play a crucial role in interference management in NGWNs. Short reporting periods cause excessive amount of over-the-air signaling (overhead) in the network and negatively impact the battery life of UE, whereas long reporting periods cause interference management procedures not to instantaneously react to dynamically changing conditions. Therefore, in this study, a reporting mechanism that changes the reporting period in an adaptive manner is proposed. Interference is modeled as a composite stochastic process, which includes both shadowing and frequency-selective fading together. It is shown that the decorrelation distance of shadowing is the key parameter for such an adaptive reporting. Practical scenarios are considered in simulations, including different environmental and mobile speed classes. Performance evaluation is established by comparing the signaling overhead of the method proposed with those of traditional strategies such as deterministic/periodic and random reporting. Numerical and experimental results are presented, along with relevant discussions.",
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