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Growing demands of high-quality data rate, coverage area, latency and efficient resource management in the heterogeneous network are addressed by Massive MIMO (M-MIMO) and Heterogeneous Small Cell Network (HSCN). M-MIMO systems with a large number of transceiver antenna arrays achieve high spatial multiplexing. The channel reciprocity is best exploited by linearly increasing the overhead of incoming...
Priority queue-based techniques improve spectrum efficiency by allocating the underutilized spectral bands (holes) of primary users to secondary users in Cognitive Radio Networks (CRN). This article proposes a Distributed Precedence Queuing scheme for Efficient Spectrum Management (DPQESM) in CRNs. The proposed method classifies the available channels into periodic and aperiodic based on the state...
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