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In this letter, we present a rotation-aided arctangent phase discriminator (RaAPD) with one-bit analog-to-digital conversion. Different from the existing digital phase discriminator (DPD) and noise-balanced digital phase discriminator (NB-DPD), the proposed RaAPD can achieve higher accuracy and better noise robust features through utilizing an extra rotation channel in the arctangent phase discriminator...
Massive (or large-scale) multi-input multi-output (MIMO) is a promising means to improve the energy efficiency, spectral efficiency and throughput. However, the complexity of the detection increases exponentially with the scale of MIMO system. In this paper, we propose a biased minimum mean-square error (MMSE) detection based on the Jacobi iterative method (JIM) to reduce the complexity of the massive...
In this paper, we study on the automatic gain control (AGC) scheme for pulse amplitude modulation (PAM) with low-precision analog-to-digital converters (ADCs). For M-PAM communication systems, we investigate the problem of AGC schemes under the assumption that low precision ADCs (e.g., 1–4 bits) are used at the receiver end. We adopt blind approach to estimate the amplitude of an unknown sequence...
We study the resource allocation problem in LTE-A downlink transmissions. Rather than maximizing the capacity, we consider energy metrics at the BS (base station), with certain rate guarantee for each MS (mobile station). Specifically, two energy related problems are investigated. By enabling a tradeoff between the number of PRBs (physical resource blocks) and the consumed power for each MS transmission,...
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