Max-Min Rates in Self-backhauled Millimeter Wave Cellular Networks
Max-Min Rates in Self-backhauled Millimeter Wave Cellular Networks
复制标题
自回程毫米波蜂窝网络中的最大-最小速率
DOI：
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复制
发表时间：
2018
期刊：
影响因子：
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通讯作者：
J. Andrews
中科院分区：
文献类型：
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作者：
M. Kulkarni;Amitava Ghosh;J. Andrews
本文考虑了可行的广域毫米波蜂窝网络的以下问题。在实现每用户数据速率的最低目标的同时，使用多跳中继的单个光纤站点的最大扩展覆盖范围是多少？我们制定了一个优化问题，以最大化每个用户的最小端到端数据速率，并利用毫米波部署的独特功能来产生易于处理的解决方案。网状网络被建模为 $k-$ring 城市峡谷型部署，其中 $k$ 是返回光纤站点的跳数。每个光纤站点的中继总数以 $k^2$ 增长。我们考虑集成接入回程（IAB）和正交接入回程（OAB）资源分配策略，以及半双工和全双工基站（BS）。通过一些经过验证的简化，我们的结果以简单的封闭式表达式的形式给出，即使对于大型网络也很容易评估。提供了一些设计指南，包括路由和调度策略的选择、全双工中继中允许的最大自干扰以及双连接在减少基站间负载不平衡方面的作用。例如，我们表明，在某些负载条件下，与可调谐 OAB（针对接入和回程链路使用单独的频谱）相比，IAB（考虑到 5G）的增益非常小；后者的实施起来要简单得多。
This paper considers the following question for viable wide-area millimeter wave cellular networks. What is the maximum extended coverage area of a single fiber site using multi-hop relaying, while achieving a minimum target per user data rate? We formulate an optimization problem to maximize the minimum end-to-end per user data rate, and exploit unique features of millimeter wave deployments to yield a tractable solution. The mesh network is modeled as a $k-$ring urban-canyon type deployment, where $k$ is the number of hops back to the fiber site. The total number of relays per fiber site grows as $k^2$. We consider both integrated access-backhaul (IAB) and orthogonal access-backhaul (OAB) resource allocation strategies, as well as both half and full duplex base stations (BSs). With a few validated simplifications, our results are given as simple closed-form expressions that are easy to evaluate even for large networks. Several design guidelines are provided, including on the choice of routing and scheduling strategy, the maximum allowable self-interference in full duplex relays and role of dual connectivity to reduce load imbalance across BSs. For example, we show that for certain load conditions there is very little gain to IAB (as considered for 5G) as opposed to tunable OAB (using separate spectrum for access and backhaul links); the latter being significantly simpler to implement.
DOI：
10.1109/cicc.2017.7993663
发表时间：
2017-04
期刊：
2017 IEEE Custom Integrated Circuits Conference (CICC)
影响因子：
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作者：
T. Dinc;H. Krishnaswamy
通讯作者：
T. Dinc;H. Krishnaswamy