Policy-Based Radios
نویسندگان
چکیده
منابع مشابه
Spectrum access policy reasoning for policy-based cognitive radios
Cognitive radio (CR) is one of the key enabling technologies for opportunistic spectrum sharing. In such a spectrum sharing paradigm, radios access spectrum opportunistically by identifying the under-utilized spectrum and then transmitting waveforms in that spectrum that are compliant to relevant spectrum access policies. Implementing such a flexible scheme requires changes in the current stati...
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Cognitive radios can lead to more reconfigurable and heterogeneous systems due to their flexibility, spectrum efficiency and interoperability. Two main limitations of the current radio systems are: (1) the prescribed, inflexible control structure in the radios; (2) the lack of understanding of their own structure by the radios. Hence, it is impossible to query the capabilities and current state...
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Spectrum regulation will undergo elementary changes in the near future allowing a less restricted and more flexible access to radio spectrum. Intelligent radios, socalled cognitive radios, will realize the dynamic usage of frequency bands on an opportunistic basis, by identifying and using under-utilized spectrum. Such a flexible spectrum usage requires changes in regulation towards a more open...
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Because of the centralized, static nature of current spectrum allotment policy, wireless communication is confronting two significant problems: spectrum scarcity and deployment delays. Current systems are significantly impacted by the lack of access to unused spectrum, and existing spectrum management procedures are too inflexible to react to dynamic operational needs. The policies are static a...
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As data rates in 802.11 Wireless LANs (WLANs) scale to Gbps, it becomes increasingly challenging for a single radio resource to meet the goals of high MAC efficiency, service differentiation, and adaptability to diverse network scenarios. We present MulWiFi, a system that uses a centralized controller to manage multiple off-the-shelf radios in a single device for addressing challenges in high-s...
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تاریخ انتشار 2015