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Improving Spectral Capacity and Wireless Network Coverage by Cognitive Radio Technology and Relay Nodes in Cellular Systems

机译:通过蜂窝系统中的认知无线电技术和中继节点来提高频谱容量和无线网络覆盖范围

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摘要

Methods to enhance the use of the frequency spectrum by automatical spectrum sensing plus spectrum sharing in a cognitive radio technology context have been presented and discussed in this paper. Ideas to improve the wireless transmission by orthogonal OFDM-based communication and to increase the coverage of cellular systems by future wireless networks, relay channels, relay stations and collaborate radio have been presented as well. A revised hierarchical deployment of the future wireless and wired networks are shortly discussed.
机译:本文提出并讨论了在认知无线电技术环境中通过自动频谱感知和频谱共享来增强频谱使用的方法。还提出了通过基于正交的OFDM的通信来改善无线传输并通过未来的无线网络,中继信道,中继站和协作无线电来增加蜂窝系统的覆盖范围的想法。简短讨论了未来无线和有线网络的修订分层部署。

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