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arXiv 1708.07320cs.NI
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密集蜂窝网络中多业务小区间干扰协调方案

A Multi-traffic Inter-cell Interference Coordination Scheme in Dense Cellular Networks

Vincenzo Sciancalepore, Ilario Filippini, Vincenzo Mancuso, Antonio Capone, Albert Banchs

摘要:

本文提出了一种新的半分布式和实用的ICIC方案的基础上几乎空白子帧(ABSF)的方法,由3GPP。我们定义了两个数学规划问题的情况下,保证和尽力而为的流量,并使用博弈论来研究衍生的ICIC分布式计划,这是比较详细的对负担不起的集中式计划的属性。基于对所提出的模型的分析,我们定义了分布式多业务调度(DMS),一个统一的分布式框架自适应干扰感知调度的基站在未来的蜂窝网络,占保证和尽力而为的流量。DMS遵循两层方法,由本地ABSF调度器和轻量级本地管理器组成,本地ABSF调度器在保证流量和尽力而为流量之间执行资源分配,本地管理器协调ABSF本地决策。由于这种双层设计,DMS需要非常轻的信令来驱动本地路由器到全局有效的操作点。如通过数值结果所示,DMS允许(i)最大化无线电资源重用,(ii)为保证的业务提供所请求的质量,(iii)最小化专用于保证的业务的时间以为尽力而为业务留下空间,以及(iv)最大化尽力而为业务的资源利用效率。

英文摘要:

This paper proposes a novel semi-distributed and practical ICIC scheme based on the Almost Blank SubFrame (ABSF) approach specified by 3GPP. We define two mathematical programming problems for the cases of guaranteed and best-effort traffic, and use game theory to study the properties of the derived ICIC distributed schemes, which are compared in detail against unaffordable centralized schemes. Based on the analysis of the proposed models, we define Distributed Multi-traffic Scheduling (DMS), a unified distributed framework for adaptive interference-aware scheduling of base stations in future cellular networks which accounts for both guaranteed and best-effort traffic. DMS follows a two-tier approach, consisting of local ABSF schedulers, which perform the resource distribution between guaranteed and best effort traffic, and a lightweight local supervisor, which coordinates ABSF local decisions. As a result of such a two-tier design, DMS requires very light signaling to drive the local schedulers to globally efficient operating points. As shown by means of numerical results, DMS allows to (i) maximize radio resources reuse, (ii) provide requested quality for guaranteed traffic, (iii) minimize the time dedicated to guaranteed traffic to leave room for best-effort traffic, and (iv) maximize resource utilization efficiency for best-effort traffic.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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