On the Multi-Channel Capacity Gains of Millimeter-Wave Communication
On the Multi-Channel Capacity Gains of Millimeter-Wave Communication
复制标题
毫米波通信的多通道容量增益
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
A. Eryilmaz
中科院分区：
文献类型：
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作者：
Semih Cayci;A. Eryilmaz
毫米波 (mmW) 通信的进步为移动通信系统开辟了 30 - 300 GHz 的广阔频段。然而，这些新频率表现出高度可变和间歇性的信道特征。在这项工作中，我们研究了不同毫米波信道统计数据对极限以及可实现速率收敛到无限带宽容量的速率的影响。特别是，我们首先确定最佳功率分配算法，并渐近地和有限数量的通道上研究容量的行为。然后，我们提出了一种渐近最优且易于分析的次优算法，并分析了该算法下可达到的速率的收敛速度。分析结果得到了现实通信场景中数值调查的支持。
Advances in millimeter-wave (mmW) communication open up a vast frequency band, from 30 - 300 GHz, for use in mobile communication systems. However, these new frequencies exhibit highly variable and intermittent channel characteristics. In this work, we investigate the impact of diverse mmW channel statistics on the limit and the rate at which the achievable rates converge to the infinite bandwidth capacity. In particular, we first identify the optimal power allocation algorithm, and investigate the behavior of the capacity both asymptotically and at finite number of channels. Then, we propose a suboptimal algorithm that achieves asymptotic optimality and is tractable for analysis, and analyze the convergence rate of the achievable rate under this algorithm. Analytical findings are supported by numerical investigations in realistic communication scenarios.