X Power Allocation in OFDM-Based Cognitive Radio Systems
نویسندگان
چکیده
منابع مشابه
A Survey on Efficient Power allocation for OFDM – Based Cognitive Radio Systems
A traditional design for Cognitive Radio (CR) systems using Orthogonal Frequency Division Multiplexing (OFDM) – is mainly concentrate on throughput of the system, but in today Energy Efficiency (EE) of wireless networks become more and more significant. The interference between the licensed and unlicensed users is a major problem in the cognitive radio systems. On the way to avoid this several ...
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Cognitive Radio (CR), which aims to improve spectrum utilization by accessing the spectrum originally licensed to a primary system, is a promising concept. In cognitive radio system based on orthogonal frequency division multiplexing (OFDM), the optimized algorithms for sub-carrier power allocation share the problems of complex iterative calculation and difficult realization. In this case, a su...
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تاریخ انتشار 2009