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For polar codes, cyclic redundancy check (CRC)-aided successive cancellation list (CA-SCL) decoder has attracted increasing attention from both academia and industry. In this paper, a hardware efficient and low-latency CA-SCL polar decoder based on distributed sorting is first proposed. For path metric (PM) sorting of each level, a distributed sorting (DS) algorithm is proposed to reduce the comparison...
In massive multiple-input multiple-output (MIMO) systems, linear minimum mean square error (MMSE) detection is near-optimal but involves large dimensional matrix inversion, which results in high complexity. To this end, Neumann series expansion (NSE) approximation, which avoids the direct computation of the matrix inversion, is recently investigated due to its low implementation complexity. Unfortunately,...
A method is presented to monitor and analyze tumor cells' biological process by image processing techniques based on an optical microscope in this paper. Meanwhile, the hybrid operation combination of the micro and nano manipulation plays a crucial role in studying living cells' biological process and the interactions of cells and drugs. In this paper, we propose an improved image segmentation method...
Real-time collision detection is a challenging problem in large-scale virtual environments. We present a hybrid bounding volume hierarchy (HBVH) based framework aiming to reduce numerous unnecessary overlap tests in collision detection. Temporal coherence is also exploited to accelerate algorithm. Furthermore, we optimize our algorithm through SIMD (single instruction, multiple data) instruction-level...
The present shadow inverse synthetic aperture radar (SISAR) imaging algorithm is derived based on some assumptions for air moving objects such as long baseline, large target size and so on. For the forward scattering radar (FSR) system to detect ground moving targets, the assumption conditions are often unsatisfied because of relatively small objects size, the strong ground clutter and the short baseline...
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