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- W2292461103 abstract "The most noted effect of rapid growth in wireless networks in recent years has been the issues of spectrum usage and management because of its importance in wireless communication as the medium of data transmission. Efficient utilization of spectrum has been the major concerns in spectrum management over recent years because of the notion that radio spectrum is scarce, finite, and non-replicable. New technologies find it difficult to be allocated frequencies for their operations because most usable frequencies have already been allocated to licenced users while the unlicenced spectrum bands are becoming overcrowded. Researches have however shown that some of the allocated spectrum bands are not been used at some particular time in a particular location. The development of technologies like 4 th generation (4G) technology, Ultra Wide Band (UWB) techniques, Software-defined Radios (SDRs), and Cognitive Radios (CRs) help to improve the overall utilization of the limited spectrum. This paper surveyed these technologies and their impact in improving spectrum efficiency in terms of spectrum management and utilization. The paper concluded that dynamic spectrum access (DSA) technologies have greater impact when compare with other technologies. Cognitive Radios in particular have the potentials to substantially improve spectrum efficiency by opportunistically using spectrum. Spectrum efficiency in this context means that a large number of users are able to use available spectrum." @default.
- W2292461103 created "2016-06-24" @default.
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- W2292461103 date "2012-01-01" @default.
- W2292461103 modified "2023-09-24" @default.
- W2292461103 title "Survey of Related Technologies for Improved Spectrum Efficiency" @default.
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