A Survey on Spectrum Sensing Using Energy Detection for 4G Waveform

Spectrum Sensing (SS) is the main and most important thing Cognitive Radio (CR) does to find unused bandwidth. This paper talks about the pros and potential of cognitive radio and gives a broad description of how it works. Spectrum sensing based on energy detection (ED)is popular and has several advantages. A characteristic of a transmission signal, a transmission channel characteristic, or even the modulation technique. These articles give a simulation overview of ED over the ricin channel. The most important things that are looked at and simulated are the probability of detection (Pd), the probability of a false alarm (Pfa), and the false alarm rate (BER) of time-dominant energy detection. As the number of samples increases, the framework gets more complicated and the throughput goes down.