Millimeter-Wave Cellular Wireless Networks: Potentials and Challenges
Sundeep Rangan,Theodore S. Rappaport,Elza Erkip +2 more
- Vol. 102, Iss: 3, pp 366-385
TLDR
Measurements and capacity studies are surveyed to assess mmW technology with a focus on small cell deployments in urban environments and it is shown that mmW systems can offer more than an order of magnitude increase in capacity over current state-of-the-art 4G cellular networks at current cell densities.Abstract:
Millimeter-wave (mmW) frequencies between 30 and 300 GHz are a new frontier for cellular communication that offers the promise of orders of magnitude greater bandwidths combined with further gains via beamforming and spatial multiplexing from multielement antenna arrays. This paper surveys measurements and capacity studies to assess this technology with a focus on small cell deployments in urban environments. The conclusions are extremely encouraging; measurements in New York City at 28 and 73 GHz demonstrate that, even in an urban canyon environment, significant non-line-of-sight (NLOS) outdoor, street-level coverage is possible up to approximately 200 m from a potential low-power microcell or picocell base station. In addition, based on statistical channel models from these measurements, it is shown that mmW systems can offer more than an order of magnitude increase in capacity over current state-of-the-art 4G cellular networks at current cell densities. Cellular systems, however, will need to be significantly redesigned to fully achieve these gains. Specifically, the requirement of highly directional and adaptive transmissions, directional isolation between links, and significant possibilities of outage have strong implications on multiple access, channel structure, synchronization, and receiver design. To address these challenges, the paper discusses how various technologies including adaptive beamforming, multihop relaying, heterogeneous network architectures, and carrier aggregation can be leveraged in the mmW context.read more
Citations
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Patent
Mitigating beam squint in millimeter wave wireless communication systems
TL;DR: In this article, a method for managing beam squint in a phased antenna array system operating at millimeter wavelengths using carrier aggregation is presented, which includes determining a minimum array gain threshold, determining an upper bound for a fractional bandwidth for a fixed number of antennas, and constructing a codebook with a predetermined coverage range.
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On the Performance of Practical Ultra-Dense Networks: The Major and Minor Factors
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TL;DR: Performance evaluation for Ultra-Dense Networks (UDNs) is conducted, and which modelling factors play major roles and minor roles are identified, to guide researchers to down-select the assumptions in their theoretical analyses, to avoid unnecessarily complicated results.
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Best Beam Prediction in Non-Standalone mm Wave Systems
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Posted Content
Multipath Transmission Scheduling in Millimeter Wave Cloud Radio Access Networks.
TL;DR: In this article, the authors proposed a multipath transmission framework by leveraging the all-mmWave cloud radio access network architecture, which makes decisions of the RRH association and the packet transmission scheduling according to the time-varying network statistics, such that a MU experiences the minimum queueing delay and packet drops.
Proceedings ArticleDOI
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