Next generation public safety networks: A spectrum sharing approach

Sohul, Munawwar M.; Yao, Miao; Ma, Xiaofu; Imana, Eyosias Yoseph; Marojevic, Vuk; Reed, Jeffrey H.

doi:10.1109/mcom.2016.7432144

Cited by 41 publications

(26 citation statements)

References 3 publications

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“…The pass bands are 800-1000, 2025-2075, 2350-2550 and 3550-3650 MHz, each corresponding to one of four electronic switch positions. The setup covers the US 3.5 GHz Innovation Band, which is a shared spectrum band for next generation wireless communications below 6 GHz [8]. Filters can be exchanged as needed.…”

Section: Filters and Antennasmentioning

confidence: 99%

“…An FCC experimental license for several bands is provided through CORNET for over-the-air experiments. The public safety LTE system described in [8] can be recreated and evaluated with additional radios, policies and coexistence mechanisms. This allows setting up different scenarios that need experimental validation of spectrum sharing concepts and rules for enabling harmonious spectrum coexistence before doing actual field trials.…”

Section: Harmonious Spectrum Coexistencementioning

confidence: 99%

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LTE Spectrum Sharing Research Testbed

Marojevic

Nealy

Reed

2017

Proceedings of the 11th Workshop on Wireless Network Testbeds, Experimental Evaluation &Amp; CHaracterization

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This 1 paper presents Virginia Tech's wireless testbed supporting research on long-term evolution (LTE) signaling and radio frequency (RF) spectrum coexistence. LTE is continuously refined and new features released. As the communications contexts for LTE expand, new research problems arise and include operation in harsh RF signaling environments and coexistence with other radios. Our testbed provides an integrated research tool for investigating these and other research problems; it allows analyzing the severity of the problem, designing and rapidly prototyping solutions, and assessing them with standardcompliant equipment and test procedures. The modular testbed integrates general-purpose software-defined radio hardware, LTEspecific test equipment, RF components, free open-source and commercial LTE software, a configurable RF network and recorded radar waveform samples. It supports RF channel emulated and over-the-air radiated modes. The testbed can be remotely accessed and configured. An RF switching network allows for designing many different experiments that can involve a variety of real and virtual radios with support for multiple-input multiple-output (MIMO) antenna operation. We present the testbed, the research it has enabled and some valuable lessons that we learned and that may help designing, developing, and operating future wireless testbeds.

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Section: Filters and Antennasmentioning

confidence: 99%

Section: Harmonious Spectrum Coexistencementioning

confidence: 99%

LTE Spectrum Sharing Research Testbed

Marojevic

Nealy

Reed

2017

Proceedings of the 11th Workshop on Wireless Network Testbeds, Experimental Evaluation &Amp; CHaracterization

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“…[1][2][3] This kind of video traffic often requires both high data rates 4 and real-time requirements. [1][2][3] This kind of video traffic often requires both high data rates 4 and real-time requirements.…”

Section: Introductionmentioning

confidence: 99%

“…Monitoring video of city surveillance camera plays an important role in public security and disaster relief for first responders such as firefighters and police officers to use in emergency situations. [1][2][3] This kind of video traffic often requires both high data rates 4 and real-time requirements. 5 Multimedia videos that exploit contents captured by massive cameras have led to rapid increase in Internet traffic volumes, which provide the first responders multiple streams with enriched view points for effective cooperation and coordination.…”

Section: Introductionmentioning

confidence: 99%

A Markovian analytical framework for public‐safety video sharing by device‐to‐device communications

Zhao

Han

Mao

et al. 2017

Concurrency and Computation

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Monitoring video of city surveillance camera plays an important role in public security and disaster relief, which is often used by first responder teams, such as firefighters and police officers.The first responders in emergency situations require consistent connection with one another and request the remote real-time monitoring video for effective cooperation and coordination.However, the capacity and privacy of public wireless networks fail to satisfy the requirements in many emergency scenarios, which often leads to exceptionally high traffic loads and insecurity.Device-to-device (D2D) communications have been deemed a key solution for this problem, as responders can use D2D links for traffic offloading and secure communications. To investigate the D2D-based solution for public safety video sharing, this paper focuses on the Focus Geographical Area (FGA) video consisting of multiple camera streams requiring higher bandwidth consumption than that of the traditional single-camera stream, which attracts a large number of contents delivery requests in emergency situations. This paper develops a new Traffic Burden Switching Markovian (TBSM) model to evaluate the performance of transmitting real-time FGA video in wireless networks with D2D communications. First, a novel D2D area model is introduced to characterize link-switching in wireless D2D communication networks. Based on the proposed D2D area model, the state and transition matrix of TBSM model are then derived by jointly considering user mobility, link-switching, and FGA video view-switching. Thereafter, some key performance metrics including system offloading ratio, D2D link-switching ratio, and view-switching ratio are derived on the basis of coverage probability and ergodic rate. The performance results show the significant varying performance among D2D areas with different geographical locations in D2D enabled wireless networks, which is referred to as multi-D2D-area diversity. The excellent match between simulation and model results validates the accuracy of the TBSM model, which can be used to provide guidelines for the deployment and optimization of future wireless video networks with D2D communications. KEYWORDS Device-to-device area, Camera view switching, Markovian model, Traffic burden switching 1 tional bandwidth-limited wireless networks with the following characteristics: (1) provision of more than one camera stream, (2) permission Concurrency Computat: Pract Exper. 2017;29:e4078.wileyonlinelibrary.com/journal/cpe

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“…Current conventional grade crossing protection systems can be extremely expensive, which is expected to improve in a wireless way. Wireless technologies have been advanced extremely fast in recently years [3], ranging from cellular [4], Wi-Fi [5] to wireless sensor networks [6,7], etc., and have been applied to various of areas, such as public safety [8], healthcare [9], distributed computing [10], etc. Particularly for transportation, Dedicated Short Range Communication (DSRC) [11], are being explored by the automotive safety industry to provide Intelligent Transportation Services (ITS).…”

Section: Introductionmentioning

confidence: 99%

Prototypes of using directional antenna for railroad crossing safety applications

Guha

Choi

et al. 2017

2017 14th IEEE Annual Consumer Communications &Amp; Networking Conference (CCNC)

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In this demonstration proposal, we present a prototype of a rapidly deployable and cost-effective railroad crossing early warning system integrated with the railway system. Specifically, the proposed demonstration deal with the safety applications based on dedicated short range communications (DSRC) protocol and devices using our different antennas. We will demonstrate the feasibility and advantages of our proposed system, including the antenna design, system deployment, the over-the-air transmission, and the software applications that we developed for the end users 1 .I.

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Next generation public safety networks: A spectrum sharing approach

Cited by 41 publications

References 3 publications

LTE Spectrum Sharing Research Testbed

LTE Spectrum Sharing Research Testbed

A Markovian analytical framework for public‐safety video sharing by device‐to‐device communications

Prototypes of using directional antenna for railroad crossing safety applications

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