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首页> 外文会议>IEEE Latin-America Conference on Communications >A flexible mid-term frequency domain scheduler for resource allocation in Hetnets based on the SINR requested by users
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A flexible mid-term frequency domain scheduler for resource allocation in Hetnets based on the SINR requested by users

机译：基于用户请求的SINR的Hetnets中的资源分配灵活的中期频域调度器

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This article solves the resource allocation problem for the downlink of a multi-cell, multiservice Wireless Mobile Communications System (WMCS) with heterogeneous architecture deployed into an urban environment using Orthogonal Frequency Division Multiple Access (OFDMA) in its physical level. The optimization model aims to equitably satisfy services to users by making an efficient use of the available resources using the Signal to Interference-plus-Noise Ratio (SINR). It is a Mixed Integer Nonlinear Programming (MINLP) model whose solution is complex to obtain directly. The proposed solution algorithm decouples the solution space of the problem and uses an iterative and distributed approach to implement a frequency-domain scheduler in the medium term that uses a global vision of the system to allocate resources trying to obtain the SINR required for all users (the proposed goal). Since it is not always possible to achieve the proposed goal, we take advantage of the elasticity of some of the services offered and incorporating the slack variable ΔP to solve it. The approach allows selecting the frequency allocation strategy, the exploration focus of the search space and the system administrator's vision.
机译：本文解决了多电池的下行链路的资源分配问题，其中具有在其物理级别的正交频率多访问（OFDMA）部署到城市环境中的异构体系结构。优化模型旨在通过使用信号与干扰 - 加噪声比（SINR）有效使用可用资源来公平地满足用户服务。它是一个混合整数非线性编程（MINLP）模型，其解决方案是复杂的，直接获取。该解决方案算法对问题的解决方案空间解耦并使用迭代和分布式方法来实现使用系统的全局视觉的中期频率域调度程序来分配尝试获取所有用户所需的SINR的资源（拟议的目标）。由于并不总是实现所提出的目标，我们利用提供的一些服务的弹性并结合了Slack变量ΔP来解决它。该方法允许选择频率分配策略，搜索空间的探索焦点和系统管理员的愿景。

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