Cooperative Spectrum Sensing for IoT System
This paper it mainly writes how to make better use of spectrum and propose different algorithms to reduce excess spectrum waste in the case of spectrum shortage. Using Randomly distribute PU and SU’s location in certain area, with the help of graphs mark the PU and SU’s, we calculate the SNR conside...
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| Veröffentlicht in: | Journal of physics. Conference series 2023-07, Vol.2547 (1), p.12019 |
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| creator | Guo, Mengxi |
| description | This paper it mainly writes how to make better use of spectrum and propose different algorithms to reduce excess spectrum waste in the case of spectrum shortage. Using Randomly distribute PU and SU’s location in certain area, with the help of graphs mark the PU and SU’s, we calculate the SNR considering channel fading, using formula to find the path loss. To perform energy detection, we generated an observation period of H1 signals and run simulations and evaluated it based on the graph of probability of detection (Pd) vs probability of false alarm (Pf). We also made some improvement on the algorithm to deal with sudden impulsive change in the environment variables. We subsequently used OR rule to decide presence of PUs. To get good performance and affordable work, we divided PU sensors into groups to detect energy of different PUs. When grouping according to SNR between PU and SU pairs, we achieved stable performance and less burden. |
| doi_str_mv | 10.1088/1742-6596/2547/1/012019 |
| format | Article |
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| subjects | Algorithms distributed sensing False alarms IoT Physics Spectrum sensing |
| title | Cooperative Spectrum Sensing for IoT System |
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