EARS: Spectrum and Infrastructure Sharing in Millimeter Wave Cellular Networks

EARS：毫米波蜂窝网络中的频谱和基础设施共享

• 批准号: 1547332
• 负责人: Sundeep Rangan
• 金额: $ 75万
• 依托单位: New York University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-02-01 至 2021-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1547332&HistoricalAwards=false
• 关键词: EARS; Spectrum; Infrastructure; Sharing; Millimeter

With the severe spectrum shortage in conventional cellular bands, millimeter wave (mmWave) frequencies between 30 and 300 GHz have been attracting growing attention as a possible candidate for next-generation micro- and pico-cellular wireless networks. The mmWave bands offer orders of magnitude greater spectrum than current cellular allocations and enable very high-dimensional antenna arrays for further gains via beam-forming and spatial multiplexing. However, due to unique nature of propagation in these frequencies, cellular systems will need to be significantly redesigned to fully exploit the potential of these frequencies. This project investigates one key dimension in mmWave network design: resource sharing, involving the sharing of spectrum and network infrastructure resources by multiple operators. It is argued that sharing of this form will be essential to fully exploit the tremendous bandwidth and antenna degrees of freedom offered by these bands and also provide statistical multiplexing to accommodate the highly variable nature of traffic.This inter-disciplinary project explores both the engineering and economic aspects of mmWave resource sharing. On the engineering side, the key challenge is that the spectrum must be shared not only in time and frequency, but also space. In addition, new decentralized mechanisms are required to rapidly reallocate backhaul and core network elements across multiple parties. The project develops signal processing methods, protocols and network optimization algorithms to facilitate directional sharing of spectrum along with dynamic re-routing and load balancing. On the economic and policy side, several shared ownership models under varying forms of licensing agreements between the operators, regulatory agencies and third-party spectrum and resource brokers are investigated. Based on the capacity estimates obtained from the engineering side, economic models are developed to assess key indicators such as operating and capital costs and coalition formation and market concentration.

随着常规细胞带的严重光谱短缺，30至300 GHz之间的毫米波（MMWave）频率一直吸引着越来越多的注意力，作为下一代微观和PICO细胞无线网络的可能候选者。 MMWave带提供的数量级比电流分配高，并实现非常高维天线阵列，以通过梁形成和空间多路复用来进一步增长。但是，由于这些频率的传播的独特性质，需要重新设计细胞系统以充分利用这些频率的潜力。该项目研究了MMWave网络设计中的一个关键维度：资源共享，涉及多个运营商通过频谱和网络基础架构资源共享。有人认为，这种形式的共享对于完全利用这些乐队提供的巨大带宽和天线自由度至关重要，并且还提供了统计多重型，以适应流量高度可变的性质。此跨学科项目探索了MMWAVE资源共享的工程和经济方面。在工程方面，关键的挑战是频谱不仅必须在时间和频率上共享，而且还必须在空间上共享。此外，需要新的分散机制来快速重新分配多个政党的回程和核心网络元素。该项目开发信号处理方法，协议和网络优化算法，以促进频谱的定向共享以及动态重新布置和负载平衡。在经济和政策方面，研究了经营者，监管机构和第三方频谱和资源经纪人之间的几种共享所有权模型。根据从工程方面获得的能力估计，开发了经济模型来评估关键指标，例如运营和资本成本以及联盟形成以及市场集中度。

项目成果

Capacity Scaling of Cellular Networks: Impact of Bandwidth, Infrastructure Density and Number of Antennas

• DOI: 10.1109/twc.2017.2769054
• 发表时间: 2017-05
• 期刊: IEEE Transactions on Wireless Communications
• 影响因子: 10.4
• 作者: Felipe Gómez-Cuba;E. Erkip;S. Rangan;F. González-Castaño