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This paper considers the uplink of a single-cell large-scale multiuser multiple-input multiple-output (MU-MIMO) system. The transmitted data is detected by linear receivers at the base station (BS), that is, maximum ratio combining (MRC), zero-forcing (ZF) and minimum mean square error (MMSE). New non-asymptotic outage expressions that are valid for any number of BS antennas are derived. It is shown...
This article presents a UWB receiver, which is made by the chips designed by our group in SMIC0.18 um process, This receiver was verified by the measurement, With the help of FPGA it can synthesis 2.8G~3.98 GHz LO frequency by changing the PLL and reference frequency, with reference frequency 21 MHz, division ratio 1/160, it can be locked at 3.36 GHz with the phase noise of -83 dBc/Hz, the internal...
This article presents a CMOS receiver that works for 3-5GHz low band SC-UWB. The receiver contains PLL, Mixer, and VGA. Double down conversion is adopted in the receiver to overcome the orthogonal clock design difficulty; digital assisted RF control method is used to increase the stability. This receiver was fabricated in SMIC01.8mmRF process with chip area of 1 × 1 mm2 ;according to measurement,...
This paper presents a new trigger receiving algorithm of the pulse UWB signal, aimed at eliminating the high requirement of process variation as well as the dependence on ultra-high sampling rate and circuit operating speed in conventional correlation receiving algorithm. This algorithm can reduce both circuit complexity and power consumption largely. Based on the proposed receiving algorithm, a fully...
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