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This paper investigates the achievable uplink spectral efficiency (SE)of a massive multi-input multi-output (MIMO) systems with a mixed analog-to-digital converter (ADC) receiver architecture, in which some antennas are equipped with costly full-resolution ADCs while others are equipped with cheap low-resolution ADCs. We derive the theoretical results and corresponding approximate expressions of the...
In TDD LTE system, beamforming technology is feasible with dynamic switch between single-layer beamforming and dual-layer beamforming for data transmission. However, in a heavy-loaded system, dense flash-light effects will significantly impact cell performance. In this paper, we review the basic downlink Radio Resource Management (RRM) functions and propose to combat flash-light effects by explicitly...
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