Robust Resource Allocation for OFDM-based Cognitive Radio in the Presence of Primary User Emulation Attack
Cognitive radio (CR) is a promising solution to improve the spectrum efficiency in which some unlicensed users are allowed to exploit frequency bands which are not used by licensed network. However, CR technology imposes some threats to the network. One of these threats is primary user emulation att...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Spolecnost pro radioelektronicke inzenyrstvi
2012-12-01
|
| Series: | Radioengineering |
| Subjects: | |
| Online Access: | http://www.radioeng.cz/fulltexts/2012/12_04_1085_1091.pdf |
| _version_ | 1829499180947603456 |
|---|---|
| author | M. Haghighat H. Fathi S. M.-S. Sadough |
| author_facet | M. Haghighat H. Fathi S. M.-S. Sadough |
| author_sort | M. Haghighat |
| collection | DOAJ |
| description | Cognitive radio (CR) is a promising solution to improve the spectrum efficiency in which some unlicensed users are allowed to exploit frequency bands which are not used by licensed network. However, CR technology imposes some threats to the network. One of these threats is primary user emulation attack where some malicious users try to send fake signals similar to the primary user (PU) and prevent secondary users from accessing vacant bands. Moreover, the presence of a primary user emulation attacker (PUEA) leads to additional interference to the CR and consequently, the efficiency of conventional power loading algorithms will be degraded. In this paper, we propose a power allocation scheme in an orthogonal frequency-division multiplexing (OFDM) based CR in the presence of PUEA. Power allocation is performed with the aim of maximizing the downlink transmission capacity achieved by the cognitive user, while keeping the interference level at the PU below a predefined threshold. Simulation results confirm the efficiency of our proposed power loading scheme, compared to classical loading algorithms that do not consider the activity of malicious users in the radio environment. |
| first_indexed | 2024-12-16T08:28:25Z |
| format | Article |
| id | doaj.art-e6e0f96d015147ccac302a31d66a8461 |
| institution | Directory Open Access Journal |
| issn | 1210-2512 |
| language | English |
| last_indexed | 2024-12-16T08:28:25Z |
| publishDate | 2012-12-01 |
| publisher | Spolecnost pro radioelektronicke inzenyrstvi |
| record_format | Article |
| series | Radioengineering |
| spelling | doaj.art-e6e0f96d015147ccac302a31d66a84612022-12-21T22:37:56ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122012-12-0121410851091Robust Resource Allocation for OFDM-based Cognitive Radio in the Presence of Primary User Emulation AttackM. HaghighatH. FathiS. M.-S. SadoughCognitive radio (CR) is a promising solution to improve the spectrum efficiency in which some unlicensed users are allowed to exploit frequency bands which are not used by licensed network. However, CR technology imposes some threats to the network. One of these threats is primary user emulation attack where some malicious users try to send fake signals similar to the primary user (PU) and prevent secondary users from accessing vacant bands. Moreover, the presence of a primary user emulation attacker (PUEA) leads to additional interference to the CR and consequently, the efficiency of conventional power loading algorithms will be degraded. In this paper, we propose a power allocation scheme in an orthogonal frequency-division multiplexing (OFDM) based CR in the presence of PUEA. Power allocation is performed with the aim of maximizing the downlink transmission capacity achieved by the cognitive user, while keeping the interference level at the PU below a predefined threshold. Simulation results confirm the efficiency of our proposed power loading scheme, compared to classical loading algorithms that do not consider the activity of malicious users in the radio environment.www.radioeng.cz/fulltexts/2012/12_04_1085_1091.pdfCognitive radioprimary user emulation attackerspectrum sensingorthogonal frequency-division multiplexingpower allocation |
| spellingShingle | M. Haghighat H. Fathi S. M.-S. Sadough Robust Resource Allocation for OFDM-based Cognitive Radio in the Presence of Primary User Emulation Attack Radioengineering Cognitive radio primary user emulation attacker spectrum sensing orthogonal frequency-division multiplexing power allocation |
| title | Robust Resource Allocation for OFDM-based Cognitive Radio in the Presence of Primary User Emulation Attack |
| title_full | Robust Resource Allocation for OFDM-based Cognitive Radio in the Presence of Primary User Emulation Attack |
| title_fullStr | Robust Resource Allocation for OFDM-based Cognitive Radio in the Presence of Primary User Emulation Attack |
| title_full_unstemmed | Robust Resource Allocation for OFDM-based Cognitive Radio in the Presence of Primary User Emulation Attack |
| title_short | Robust Resource Allocation for OFDM-based Cognitive Radio in the Presence of Primary User Emulation Attack |
| title_sort | robust resource allocation for ofdm based cognitive radio in the presence of primary user emulation attack |
| topic | Cognitive radio primary user emulation attacker spectrum sensing orthogonal frequency-division multiplexing power allocation |
| url | http://www.radioeng.cz/fulltexts/2012/12_04_1085_1091.pdf |
| work_keys_str_mv | AT mhaghighat robustresourceallocationforofdmbasedcognitiveradiointhepresenceofprimaryuseremulationattack AT hfathi robustresourceallocationforofdmbasedcognitiveradiointhepresenceofprimaryuseremulationattack AT smssadough robustresourceallocationforofdmbasedcognitiveradiointhepresenceofprimaryuseremulationattack |