Millimeter-Wave Cellular Wireless Networks: Potentials and Challenges
Sundeep Rangan,Theodore S. Rappaport,Elza Erkip +2 more
- Vol. 102, Iss: 3, pp 366-385
Reads0
Chats0
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
More filters
Massive MIMO systems at millimeter-wave. Beamforming design and channel estimation
TL;DR: This work proposes a novel channel estimation method for MMW systems where both transmitter and receiver are equipped with less radio frequency chains than antennas and implement hybrid analog-digital beamforming.
Proceedings ArticleDOI
On Single-User Interactive Beam Alignment in Millimeter Wave Systems: Impact of Feedback Delay
TL;DR: In this article, a lower bound on the minimum achievable expected beamwidth is provided for interactive beam alignment under arbitrary fixed feedback delays, where the feedback sequences are viewed as source codewords.
Proceedings ArticleDOI
Joint Secure User Association, Power and Subcarrier Allocation in Decoupled 5G Heterogeneous Network
TL;DR: In this paper, the authors investigated secure user association, power and microwave and millimeter wave sub-carriers allocation employing DU-De strategy in N-tier heterogeneous networks (HetNets).
Journal ArticleDOI
Beam broadened radial line slot array antenna for fifth generation (5g) mobile broadband communication
TL;DR: In this paper, a beam broadened radial line slot array antenna at 28 GHz for 5G broadband mobile communication system was proposed, which achieved a gain of 15.8 dB, impedance bandwidth of 1.6 GHz, radiation efficiency of 96 % and 3 dB half power beamwidth of up to 32.3 dB.
Posted Content
PCach: The Case for Pre-Caching your Mobile Data
TL;DR: PCach as discussed by the authors is a smartphone-based approach for relieving the congestion in cellular network resulting from the exponential growth in mobile data traffic, which uses WiFi to proactively cache content on the smartphone's memory which otherwise would have been delivered through the cellular network.
References
More filters
Book
Wireless Communications: Principles and Practice
TL;DR: WireWireless Communications: Principles and Practice, Second Edition is the definitive modern text for wireless communications technology and system design as discussed by the authors, which covers the fundamental issues impacting all wireless networks and reviews virtually every important new wireless standard and technological development, offering especially comprehensive coverage of the 3G systems and wireless local area networks (WLANs).
Journal ArticleDOI
Millimeter Wave Mobile Communications for 5G Cellular: It Will Work!
Theodore S. Rappaport,Shu Sun,Rimma Mayzus,Hang Zhao,Yaniv Azar,Kevin H. Wang,George N. Wong,Jocelyn K. Schulz,Mathew K. Samimi,Felix Gutierrez +9 more
TL;DR: The motivation for new mm-wave cellular systems, methodology, and hardware for measurements are presented and a variety of measurement results are offered that show 28 and 38 GHz frequencies can be used when employing steerable directional antennas at base stations and mobile devices.
Journal ArticleDOI
Scaling Up MIMO: Opportunities and Challenges with Very Large Arrays
Fredrik Rusek,Daniel Persson,Buon Kiong Lau,Erik G. Larsson,Thomas L. Marzetta,Fredrik Tufvesson +5 more
TL;DR: The gains in multiuser systems are even more impressive, because such systems offer the possibility to transmit simultaneously to several users and the flexibility to select what users to schedule for reception at any given point in time.
Journal ArticleDOI
Five disruptive technology directions for 5G
TL;DR: In this article, the authors describe five technologies that could lead to both architectural and component disruptive design changes: device-centric architectures, millimeter wave, massive MIMO, smarter devices, and native support for machine-to-machine communications.
Journal ArticleDOI
Femtocell networks: a survey
TL;DR: The technical and business arguments for femtocells are overview and the state of the art on each front is described and the technical challenges facing femtocell networks are described and some preliminary ideas for how to overcome them are given.