Abstract
Cognitive radio (CR) network, providing integration of conventional licensed radios with unlicensed (cognitive) radios in an opportunistic manner, is a promising paradigm for spectral efficiency. In the paper, we discuss different communication modes, i.e., transmit-and-sense (TS) and transmit-and-receive (TR) modes, for full duplex (FD) enabled nodes in non-time slotted (asynchronous) CR networks. The effects of self- interference (SI) on the sensing performance of FD enabled nodes, along with the inherent tradeoff between sensing performance and delay in detecting the PU signal for FD-TS mode, are investigated. The analytical results of ROC performance, and collision probability are derived in closed form expressions. The analytical results are verified with simulation results.
| Original language | English |
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| Title of host publication | 2018 International Workshop on Emerging ICT, Yeungnam University, Gyeongsan, South Korea |
| Number of pages | 2 |
| Publication status | Published - 4 Nov 2018 |
| Externally published | Yes |
Keywords
- cognitive radio
- spectral efficiency
- full duplex