Cited by 25Cooperative Communication and Network CodingAdvanced Wireless Communication TechniquesOptical Wireless Communication Technologies

Outage Performance of Two-Hop OFDM Systems With Spatially Random Decode-and-Forward Relays

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Dang, Shuping, Coon, Justin P., Chen, Gaojie·2017·IEEE Access

Abstract

In this paper, we analyze the outage performance of different multicarrier relay selection schemes for two-hop orthogonal frequency-division multiplexing (OFDM) systems in a Poisson field of relays. In particular, special emphasis is placed on decode-and-forward relay systems, equipped with bulk and per-subcarrier selection schemes, respectively. The exact expressions for outage probability are derived in integrals for general cases. In addition, asymptotic expressions for outage probability in the high signal-to-noise ratio region in the finite circle relay distribution region are determined in closed forms for both relay selection schemes. In addition, the outage probabilities for free space in the infinite relay distribution region are derived in closed forms. Meanwhile, a series of important properties related to cooperative systems in random networks are investigated, including diversity, outage probability ratio of two selection schemes, and optimization of the number of subcarriers in terms of system throughput. All analyses are numerically verified by simulations. Finally, a framework for analyzing the outage performance of the OFDM systems with spatially random relays is constructed, which can be easily modified to analyze other similar cases with different forwarding protocols, location distributions, and/or channel conditions.

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Crossref · 10.1109/access.2017.2773658

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  • Most existing communication and networking architectures only consider two-dimensional scenarios, in which the heights of communication nodes are negligible.

    “Apart from satellite communications, most existing communication and networking architectures only consider two-dimensional scenarios, in which the heights of communication nodes are negligible [42].”

    From What should 6G be? (2020) · cites this paper as [42]

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Authors
Dang, S., Coon, J. P., & Chen, G.
Affiliations
University of Oxford (GB)
Venue
IEEE Access
Published
2017
Volume
5
Pages
27514-27524
ISSN
2169-3536 (ISSN-L)
OpenAlex
W2963448228
Cited by
25
References
41
Citations by year
2025: 1 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 4 · 2019: 5 · 2018: 8
FWCI
3.10
Type
journal article
Language
en
Open access
Locations
  • IEEE Access (publishedVersion, cc-by)
  • arXiv (Cornell University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • arXiv (Cornell University)
Funders
  • SEN (EP/N002350/1)
  • China Scholarship Council (201508060323)
Topics
  • Physical Sciences › Computer Science › Computer Networks and Communications › Cooperative Communication and Network Coding
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Wireless Communication Techniques
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Optical Wireless Communication Technologies
Keywords
outage probability, decode-and-forward relaying, relay selection, cooperative communication, diversity, throughput maximization, asymptotic analysis, random networks

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