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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Optimal Uplink Channel Estimation Algorithm for OFDM Based MmWave Massive MIMO Systems
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Clustering Algorithms and Validation Indices for a Wide mmWave Spectrum
TL;DR: It is shown that in outdoor communication scenarios clustering of received rays is influenced by the frequency of the transmitted signal, which demonstrates the sparse characteristic of the mmWave spectrum.
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Investigating the Visibility of 28 and 73 GHz Frequency Bands for Outdoor MIMO Channel
TL;DR: The investigation of outdoor performance of Multiple Input Multiple Output (MIMO) systems for 28 GHz and 73 GHz frequency bands is explored and the main features of the new frequency bands, their mmWave system-wide behavior, their maximum coverage distance as well as their usage visibility are revealed.
Patent
Multi-antenna system and methods for use therewith
Paul Shala Henry,Donald J. Barnickel,Farhad Barzegar,Robert Bennett,Irwin Gerszberg,Thomas M. Willis +5 more
TL;DR: In this article, the authors describe an antenna structure that includes first and second dielectric antennas that each redirect a beam pattern generated by the first and the second DAs away from a center axis of the of the first DAs.
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A novel near-optimum distributed scheduling algorithm for mmWave mesh networks
TL;DR: A distributed scheduling algorithm for millimeter wave (mmW) mesh networks is studied and results show a throughput enhancement of about 6% over the well-known memory-guided directional MAC (MDMAC) for most network sizes.
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