Abstract

The paper evaluates the capacity of a cognitive user in an orthogonal frequency-division multiplexing-based spectrum sharing communication system that assumes ran- dom subcarrier allocation and absence of spectrum sensing information at the secondary (cognitive) user. In the absence of the primary user's channel occupation information, i.e., no spectrum sensing mechanism is used, the secondary user randomly accesses the subcarriers of the primary network and collides with the primary users' subcarriers. The capacity of a secondary user under such a random access that assumes subcarrier collisions is evaluated herein paper and used as a performance benchmark to investigate the proposed commu- nication scheme over the Rayleigh fading channel.

Original languageEnglish
Pages (from-to)72-78
Number of pages7
JournalAdvanced International Conference on Telecommunications, AICT
Volume2013-January
Issue numberJanuary
Publication statusPublished - 2013

Fingerprint

Rayleigh fading
Fading channels
Orthogonal frequency division multiplexing
Communication systems
Communication

Keywords

  • Capacity
  • Cognitive radio
  • OFDM
  • Random access
  • Spectrum sharing

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

@article{f3a54d45f3a14e0fae7bc8a5f3119eb9,
title = "On the capacity of a cognitive user with subcarrier collisions over rayleigh fading channels",
abstract = "The paper evaluates the capacity of a cognitive user in an orthogonal frequency-division multiplexing-based spectrum sharing communication system that assumes ran- dom subcarrier allocation and absence of spectrum sensing information at the secondary (cognitive) user. In the absence of the primary user's channel occupation information, i.e., no spectrum sensing mechanism is used, the secondary user randomly accesses the subcarriers of the primary network and collides with the primary users' subcarriers. The capacity of a secondary user under such a random access that assumes subcarrier collisions is evaluated herein paper and used as a performance benchmark to investigate the proposed commu- nication scheme over the Rayleigh fading channel.",
keywords = "Capacity, Cognitive radio, OFDM, Random access, Spectrum sharing",
author = "S. Ekin and Erchin Serpedin and Mohamed Abdallah and Khalid Qaraqe",
year = "2013",
language = "English",
volume = "2013-January",
pages = "72--78",
journal = "Advanced International Conference on Telecommunications, AICT",
issn = "2308-4030",
publisher = "International Academy, Research, and Industry Association (IARIA)",
number = "January",

}

TY - JOUR

T1 - On the capacity of a cognitive user with subcarrier collisions over rayleigh fading channels

AU - Ekin, S.

AU - Serpedin, Erchin

AU - Abdallah, Mohamed

AU - Qaraqe, Khalid

PY - 2013

Y1 - 2013

N2 - The paper evaluates the capacity of a cognitive user in an orthogonal frequency-division multiplexing-based spectrum sharing communication system that assumes ran- dom subcarrier allocation and absence of spectrum sensing information at the secondary (cognitive) user. In the absence of the primary user's channel occupation information, i.e., no spectrum sensing mechanism is used, the secondary user randomly accesses the subcarriers of the primary network and collides with the primary users' subcarriers. The capacity of a secondary user under such a random access that assumes subcarrier collisions is evaluated herein paper and used as a performance benchmark to investigate the proposed commu- nication scheme over the Rayleigh fading channel.

AB - The paper evaluates the capacity of a cognitive user in an orthogonal frequency-division multiplexing-based spectrum sharing communication system that assumes ran- dom subcarrier allocation and absence of spectrum sensing information at the secondary (cognitive) user. In the absence of the primary user's channel occupation information, i.e., no spectrum sensing mechanism is used, the secondary user randomly accesses the subcarriers of the primary network and collides with the primary users' subcarriers. The capacity of a secondary user under such a random access that assumes subcarrier collisions is evaluated herein paper and used as a performance benchmark to investigate the proposed commu- nication scheme over the Rayleigh fading channel.

KW - Capacity

KW - Cognitive radio

KW - OFDM

KW - Random access

KW - Spectrum sharing

UR - http://www.scopus.com/inward/record.url?scp=84938095974&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938095974&partnerID=8YFLogxK

M3 - Article

VL - 2013-January

SP - 72

EP - 78

JO - Advanced International Conference on Telecommunications, AICT

JF - Advanced International Conference on Telecommunications, AICT

SN - 2308-4030

IS - January

ER -