تصفح Electrical Engineering حسب الموضوع "Underlay networks"
السجلات المعروضة 1 -- 5 من 5
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Outage analysis of selective cooperation in underlay cognitive networks with fixed gain relays and primary interference modeling
( IEEE , 2012 , Conference Paper)Selective cooperation is a well investigated technique in non-cognitive networks for efficient spectrum utilization and performance improvement. However, it is still a nascent topic for underlay cognitive networks. Recently, ... -
Partial relay selection in underlay cognitive networks with fixed gain relays
( IEEE , 2012 , Conference Paper)In a communication system with multiple cooperative relays, selecting the best relay utilizes the available spectrum more efficiently. However, selective relaying poses a different problem in underlay cognitive networks ... -
Performance analysis of relay selection schemes in OFDM-based underlay cognitive networks
( IEEE , 2013 , Conference Paper)Cognitive radio (CR) is a promising technology that allows wireless systems to sense the environment and learn from previous experience to improve the communication quality. However, CR needs a flexible and adaptive physical ... -
Performance analysis of relay selection schemes in underlay cognitive networks with Decode and Forward relaying
( IEEE , 2012 , Conference Paper)In underlay cognitive networks with regenerative relaying, secondary users operating with primary user are adhering to stringent interference constraint which limits their transmission power and coverage area. In order not ... -
Performance analysis of selective cooperation in underlay cognitive networks over Rayleigh channels
( IEEE , 2011 , Conference Paper)Underlay cognitive networks should follow strict interference thresholds to operate in parallel with primary networks. This constraint limits their transmission power and eventually the area of coverage. Therefore, it is ...