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Cognitive radio (CR) technology has been proposed as an effective approach to increase the spectrum utilization. In this work, considering that most, if not all, existing channel models are not applicable to the typical CR application scenarios due to the low transmit/receive antenna height, the short communication/interference distance, and/or the frequency range, extensive channel measurements have...
In light of the emerging fifth generation (5G) mobile communications, large-scale antenna systems (LSAS, also known as large-scale MIMO, massive MIMO, etc.) present a highly promising solution to meet the demanding requirements of even higher network capacity, throughput, spectrum- and energy-efficiency than 4G systems. Channel measurements show that unlike conventional MIMO, quite a few new channel...
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