标题： 基于物理启发方法的高阶调制大MIMO检测器 显示英文标题

标题： High-Order Modulation Large MIMO Detector Based on Physics-Inspired Methods

摘要： 应用量子退火或当前的量子/物理启发式算法进行MIMO检测时，总是会放弃直接的灰码位到符号映射，以获得伊辛形式，导致不一致错误。 这通常会导致收敛速度缓慢和误差平底，尤其是在高阶调制情况下。 我们提出了HOPbit，一种新型的MIMO检测器，旨在通过将MIMO检测问题转化为高阶无约束二进制优化（HUBO）问题，同时保持灰码位到符号映射，从而解决此问题。 然后，该方法采用模拟概率位（p-位）算法直接求解HUBO而不会退化。 这种创新策略使HOPbit能够在大多数情况下实现快速收敛，并在甚至涉及高阶调制的情况下达到接近最优的最大似然性能。 实验表明，在12用户大规模和大MIMO系统中，即使在计算资源有限的情况下，HOPbit在误比特率（BER）方面也比ParaMax高出几个数量级。 此外，HOPbit的BER率低于其他传统检测器。 显示英文摘要

摘要： Applying quantum annealing or current quantum-/physics-inspired algorithms for MIMO detection always abandon the direct gray-coded bit-to-symbol mapping in order to obtain Ising form, leading to inconsistency errors. This often results in slow convergence rates and error floor, particularly with high-order modulations. We propose HOPbit, a novel MIMO detector designed to address this issue by transforming the MIMO detection problem into a higher-order unconstrained binary optimization (HUBO) problem while maintaining gray-coded bit-to-symbol mapping. The method then employs the simulated probabilistic bits (p-bits) algorithm to directly solve HUBO without degradation. This innovative strategy enables HOPbit to achieve rapid convergence and attain near-optimal maximum-likelihood performance in most scenarios, even those involving high-order modulations. The experiments show that HOPbit surpasses ParaMax by several orders of magnitude in terms of bit error rate (BER) in the context of 12-user massive and large MIMO systems even with computing resources. In addition, HOPbit achieves lower BER rates compared to other traditional detectors.