Resource Allocation for Spectrum Sharing Cognitive Radio Networks

Ebrahim Bedeer Mohamed, Octavia A. Dobre, Mohamed Hossam Ahmed, Kareem E. Baddour

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

In this paper, we investigate the resource allocation problem (joint bit and power loading) of secondary users sharing the radio spectrum with primary users in cognitive radio networks. We consider the co-existence scenario where a secondary user is allowed to access the shared spectrum while guaranteeing tolerable interference to primary users. For such a scenario, we formulate and solve an optimization problem that jointly maximizes the secondary user throughput and minimizes its transmit power while satisfying target bit error rate per subcarrier and certain limits of co-channel and adjacent channel interferences to existing primary users. Simulation results are described that illustrate the performance of the proposed algorithm, and show its closeness to that of an exhaustive search for the equivalent discrete formulation.

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Cognitive radio
Bit error rate
Resource allocation
Throughput

Keywords

  • Throughput
  • OFDM
  • Bit error rate
  • Interference
  • Receivers
  • Optimization
  • Resource management

Cite this

Mohamed, Ebrahim Bedeer ; Dobre, Octavia A. ; Ahmed, Mohamed Hossam ; Baddour, Kareem E. / Resource Allocation for Spectrum Sharing Cognitive Radio Networks. In: 2014 IEEE International Conference on Communications (ICC). 2013.
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Resource Allocation for Spectrum Sharing Cognitive Radio Networks. / Mohamed, Ebrahim Bedeer; Dobre, Octavia A.; Ahmed, Mohamed Hossam; Baddour, Kareem E.

In: 2014 IEEE International Conference on Communications (ICC), 07.11.2013.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Resource Allocation for Spectrum Sharing Cognitive Radio Networks

AU - Mohamed, Ebrahim Bedeer

AU - Dobre, Octavia A.

AU - Ahmed, Mohamed Hossam

AU - Baddour, Kareem E.

PY - 2013/11/7

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N2 - In this paper, we investigate the resource allocation problem (joint bit and power loading) of secondary users sharing the radio spectrum with primary users in cognitive radio networks. We consider the co-existence scenario where a secondary user is allowed to access the shared spectrum while guaranteeing tolerable interference to primary users. For such a scenario, we formulate and solve an optimization problem that jointly maximizes the secondary user throughput and minimizes its transmit power while satisfying target bit error rate per subcarrier and certain limits of co-channel and adjacent channel interferences to existing primary users. Simulation results are described that illustrate the performance of the proposed algorithm, and show its closeness to that of an exhaustive search for the equivalent discrete formulation.

AB - In this paper, we investigate the resource allocation problem (joint bit and power loading) of secondary users sharing the radio spectrum with primary users in cognitive radio networks. We consider the co-existence scenario where a secondary user is allowed to access the shared spectrum while guaranteeing tolerable interference to primary users. For such a scenario, we formulate and solve an optimization problem that jointly maximizes the secondary user throughput and minimizes its transmit power while satisfying target bit error rate per subcarrier and certain limits of co-channel and adjacent channel interferences to existing primary users. Simulation results are described that illustrate the performance of the proposed algorithm, and show its closeness to that of an exhaustive search for the equivalent discrete formulation.

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KW - OFDM

KW - Bit error rate

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KW - Receivers

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