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首页> 外文期刊>IEEE Transactions on Communications >Capacity Scaling Laws in Interference-Limited Multiple-Antenna AF Relay Networks With User Scheduling
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Capacity Scaling Laws in Interference-Limited Multiple-Antenna AF Relay Networks With User Scheduling

机译：具有用户调度的受限干扰多天线AF中继网络中的容量缩放定律

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摘要

The ergodic capacity of multiuser multiple-antenna amplify and forward relay networks with co-channel interference is investigated. Notwithstanding the system complexity, the proposed capacity analysis framework was made possible owing to the newly found complementary moment generating function transform. First, the exact expression for the ergodic capacity, under interference-aware opportunistic scheduling and Rayleigh fading, is derived for finite antenna and user counts. In addition, using extreme value theory, closed-form expressions for the asymptotic ergodic rates are derived for an unlimited number of users or/and antennas at the source. The large-scale analysis embodies, through new insightful formulas, common popular observations so far disclosed intuitively or empirically. Capitalizing on these novel scaling laws, we have been able to derive new closed-form expressions for capacity losses due to intercell interference at the relay and all users. Simulation results suggest a rather fast convergence of the capacity gains to the new asymptotic limits, thereby demonstrating the practical importance of our novel scaling results.
机译：研究了具有同信道干扰的多用户多天线放大转发中继网络的遍历容量。尽管系统复杂，但由于新发现的补充矩生成函数变换，使得提出的容量分析框架成为可能。首先，在有限的天线和用户数量的情况下，在感知干扰的机会调度和瑞利衰落下，得出遍历容量的精确表达式。此外，使用极值理论，可以为源头上无限数量的用户或/和天线导出渐近遍历速率的闭式表达式。大规模分析通过新的有洞察力的公式体现了迄今为止在直观或经验上公开的普遍流行的观察结果。利用这些新颖的缩放定律，我们已经能够针对因中继站和所有用户之间的小区间干扰而导致的容量损失得出新的封闭式表达式。仿真结果表明，容量增益相当快地收敛到新的渐近极限，从而证明了我们新颖的缩放结果的实际重要性。

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