Energy Detection Based Cooperative Spectrum Sensing in Cognitive Radio Networks
作者： Saman Atapattu , Chintha Tellambura , Hai Jiang
DOI: 10.1109/TWC.2011.012411.100611
关键词: Detector 、 Software-defined radio 、 Rayleigh scattering 、 Multipath propagation 、 Sensor fusion 、 Upper and lower bounds 、 Fading 、 Communication channel 、 Algorithm 、 Computer science 、 Relay 、 Nakagami distribution 、 Telecommunications 、 Rayleigh fading 、 Cognitive radio
摘要: Detection performance of an energy detector used for cooperative spectrum sensing in a cognitive radio network is investigated over channels with both multipath fading and shadowing. The analysis focuses on two fusion strategies: data decision fusion. Under fusion, upper bounds average detection probabilities are derived four scenarios: 1) single relay; 2) multiple relays; 3) relays direct link; 4) multi-hop relays. the exact false alarm under generalized "k-out-of-n" rule at center consideration errors reporting channel due to fading. results extended as well. Our validated by numerical simulation results. Although this research Rayleigh lognormal shadowing, analytical framework can be Nakagami-m shadowing
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