论文标题
用于小细胞接入点放置的修改矢量量化与细胞间干扰
Modified Vector Quantization for Small-Cell Access Point Placement with Inter-Cell Interference
论文作者
论文摘要
在本文中，我们探讨了吞吐量 - 优先性的背景下的小细胞上行链路访问点（AP）放置问题，并在考虑到Inter细胞间干扰时提供解决方案。首先，我们简要回顾了矢量量化（VQ）方法和相关的单个用户吞吐量 - 最佳配方，以放置AP放置。然后，我们与多个用户一起研究了小型案例，并暴露了基于平方错误的VQ的局限性以解决此问题。尽管发现来自VQ方法的Lloyd算法并不严格解决小细胞案例，但基于所得AP放置的障碍和质量，我们认为它是一个简单且适当的框架来解决更复杂的问题。因此，为了最大程度地减少ICI并增强可实现的吞吐量，我们设计了两种Lloyd型算法，即干扰Lloyd算法和Inter-AP Lloyd算法，这两种算法都在其失真函数中累积ICI。仿真结果表明，两种提出的算法都比传统的劳埃德算法提供了95 \％的可能速率，并且与LLOYD算法相比，可实现的速率可显着增加36.34％。
In this paper, we explore the small-cell uplink access point (AP) placement problem in the context of throughput-optimality and provide solutions while taking into consideration inter-cell interference. First, we briefly review the vector quantization (VQ) approach and related single user throughput-optimal formulations for AP placement. Then, we investigate the small-cell case with multiple users and expose the limitations of mean squared error based VQ for solving this problem. While the Lloyd algorithm from the VQ approach is found not to strictly solve the small-cell case, based on the tractability and quality of resulting AP placement, we deem it suitable as a simple and appropriate framework to solve more complicated problems. Accordingly, to minimize ICI and consequently enhance achievable throughput, we design two Lloyd-type algorithms, namely, the Interference Lloyd algorithm and the Inter-AP Lloyd algorithm, both of which incorporate ICI in their distortion functions. Simulation results show that both of the proposed algorithms provide superior 95\%-likely rate over the traditional Lloyd algorithm and the Inter-AP Lloyd algorithm yields a significant increase of up to 36.34\% in achievable rate over the Lloyd algorithm.
