Abstract
This paper considers a single-input-multiple-output underlay cognitive wiretap system over Nakagami-m channels with generalized selection combining, where confidential messages transmitted from a single-antenna transmitter to a multiple-antenna legitimate receiver are overheard by a multiple-antenna eavesdropper. Passive eavesdropping scenario is considered in this work, while the channel state information of the eavesdropping channel is not available at the secondary transmitter. We derived the closed-form expression for the exact secrecy outage probability. Simulations are conducted to validate the accuracy of our proposed analytical models.
Original language | English |
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Article number | 7422832 |
Pages (from-to) | 10126-10132 |
Number of pages | 7 |
Journal | IEEE Transactions on Vehicular Technology |
Volume | 65 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 2016 |
Externally published | Yes |
Keywords
- Cognitive radio
- multiple antennas
- Nakagami-mfading
- physical layer security
- secrecy outage probability (SOP)