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Search Publications by: Richard A. Rouil (Fed)

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Displaying 26 - 50 of 68

Evaluating Unicast and MBSFN in Public Safety Networks

September 3, 2020
Author(s)
Chunmei Liu, Chen Shen, Jack Chuang, Richard A. Rouil, Hyeong-Ah Choi
Public safety incidents typically involve a significant amount of group traffic and have a stringent requirement of connection reliability. Hence multicast could potentially improve network and user performance significantly, which triggered our study on

UE-to-Network Relay Discovery in ProSe-enabled LTE Networks

March 30, 2020
Author(s)
Samantha M. Gamboa Quintiliani, Alexandre C. Moreaux, David W. Griffith, Richard A. Rouil
The UE-to-Network Relay functionality was introduced to Long Term Evolution (LTE) cellular networks in Release 13. In this technology, User Equipment (UEs) acting as Relay UEs are used to extend network coverage to cell-edge and out-of-coverage Remote UEs

On Selecting Channel Parameters for Public Safety Network Applications in LTE Direct

March 26, 2020
Author(s)
Siyuan Feng, Hyong-Ah Choi, David W. Griffith, Richard A. Rouil
The Third Generation Partnership Project (3GPP) defines various pre-configured channel parameters for the Long- Term Evolution (LTE) Device-to-Device (D2D) communications with Physical Sidelink (SL) Channels. In this paper, we investigate the impacts of

Distributed Resource Allocation Schemes for Out-of-Coverage D2D Communications

February 27, 2020
Author(s)
Jian Wang, Richard A. Rouil, Fernando J. Cintron
In many public safety scenarios, Device-to-Device (D2D) communication should be capable of handling out-of-coverage situations, ensuring that D2D devices can communicate directly without the aid of network infrastructure. While a number of resource

Throughput Analysis between Unicast and MBSFN from Link Level to System Level

November 7, 2019
Author(s)
Chunmei Liu, Chen Shen, Jack Chuang, Richard A. Rouil, Hyeong-Ah Choi
Public safety incidents typically involve significant amount of group traffic. This paper initializes our study in exploring the potential spectrum savings and improvement in first responders experience by using Multicast Broadcast Single Frequency Network

System Level Evaluation of UE-to-Network Relays in D2D-enabled LTE Networks

September 13, 2019
Author(s)
Samantha M. Gamboa Quintiliani, Raghav Thanigaivel, Richard A. Rouil
The 3rd Generation Partnership Program (3GPP) introduced UE-to-Network Relays in Long Term Evolution (LTE) Release 13. This technology leverages Proximity Services (ProSe), i.e., the LTE Device-to-device (D2D) communication functionality, to provide user

Guidelines for Generating Public Safety Benchmark Scenario Set

May 1, 2019
Author(s)
Richard A. Rouil, Chunmei Liu, Antonio Izquierdo Manzanares
There is a need to establish well-defined, public safety scenarios for the evaluation of current and future communication technologies for first responders. The scenario descriptions must contain enough details to be considered representative of key public

Access Time Analysis of MCPTT Off-Network Mode over LTE

April 2, 2019
Author(s)
Yishen Sun, Wesley D. Garey, Richard A. Rouil, Priam C. Varin
Public Safety organizations around the world started migrating toward Long Term Evolution (LTE) networks to support the increasing needs for video and data. To address the unique requirements of first responders, the Third 3rd Generation Partnership

2018 Stakeholder Meeting Presentations, Day 3, Room 29ABCD

October 16, 2018
Author(s)
Richard A. Rouil, Antonio Izquierdo Manzanares, Paul Sutton, Seun Sangodoyin, Andreas Molisch, Richard Lau, William Johnson, Heechang Kim, Eric Beck, Fidel Liberal, Jani Lyrintzis, Terry Costa, Yishen Sun, Wesley D. Garey

PSCR 2017 Stakeholder Conference Presentation Materials -- Day 3

October 16, 2018
Author(s)
Dereck R. Orr, Richard A. Rouil, Jeremy E. Benson, David W. Griffith, Fidel Liberal, Robert Escalle, Sonim Technologies, Richard Lau, Vencore Labs, Paul Sutton, Software Radio Systems LTD, Sumit Roy, Sean Sangodoyin, David A. Howe, Fabio C. Da Silva, Alicia Evangelista, Yet2, Brienne Engel, Yet2, John S. Garofolo
This document is a compilation of the slides presented during Day 3 of the 2017 Public Safety Communications Research Program's (PSCR) Annual Stakeholder Conference. Day 3 topics include PSCR research plans and results for Mission Critical Voice, Indoor

Assessing Coverage and Throughput for D2D Communication

July 30, 2018
Author(s)
Jian Wang, Richard A. Rouil
In this paper, we address the issue of assessing the performance of a Device-to-Device (D2D) communication link. Particularly, we design a framework to evaluate performance with respect to the coverage probability and average throughput. Our modeling

Modeling and Simulation Analysis of the Physical Sidelink Shared Channel (PSSCH)

May 24, 2018
Author(s)
David W. Griffith, Fernando J. Cintron, Timothy Hall, Richard A. Rouil
This paper examines the performance of the Long Term Evolution (LTE) Physical Sidelink Shared Channel (PSSCH) in out-of-coverage (OOC) device-to-device (D2D) communication scenarios. We develop a closed form expression for the distribution of the number of

Increasing Public Safety Broadband Network Resiliency Through Traffic Control

February 1, 2018
Author(s)
Richard A. Rouil, Wesley D. Garey, Camillo A. Gentile, Nada T. Golmie
Long Term Evolution (LTE)-based cellular networks are being deployed around the world to provide public safety with enhanced capabilities and access to broadband technology. In the United States, the First Responder Network Authority (FirstNet) is on the

Enhanced Transmission Algorithm for Dynamic Device-to-Device Direct Discovery

January 12, 2018
Author(s)
Aziza Ben Mosbah, David W. Griffith, Richard A. Rouil
In order to support the increasing demand for capacity in cellular networks, Long Term Evolution (LTE) introduced Proximity Services (ProSe) enabling Device-to-Device (D2D) communications, defining several services to support such networks. We are

Adaptive synchronization reference selection for out-of-coverage Proximity Services (ProSe)

October 8, 2017
Author(s)
Samantha M. Gamboa Quintiliani, Fernando J. Cintron, David W. Griffith, Richard A. Rouil
Proximity services (ProSe) is a Long Term Evolution Advanced (LTE-A) feature that allows User Equipments (UEs) to communicate without the need of routing the data throughout the network. In this paper, we studied the synchronization protocol used by ProSe

A Novel Adaptive Transmission Algorithm for Device-to-Device Direct Discovery

June 27, 2017
Author(s)
Aziza Ben Mosbah, David W. Griffith, Richard A. Rouil
In this paper we study and improve one service used for Proximity Services and Device-to-Device (D2D) communications: D2D Direct Discovery. As defined in the Third Generation Partnership Project, for both in-coverage and out-of-coverage cases, resource

Implementation and Validation of an LTE D2D Model for ns-3

June 13, 2017
Author(s)
Richard A. Rouil, Fernando J. Cintron, Aziza Ben Mosbah, Samantha M. Gamboa Quintiliani
The ability to perform device-to-device (D2D) communication in Long Term Evolution (LTE)-based cellular networks became possible with the introduction of Proximity Services (ProSe) functionalities in the 3rd Generation Partnership Program (3GPP)

Physical Sidelink Control Channel (PSCCH) in Mode 2: Performance Analysis

May 25, 2017
Author(s)
David W. Griffith, Fernando J. Cintron, Richard A. Rouil
User Equipments (UEs) that send data must advertise the upcoming transmission by broadcasting signaling messages over the Physical Sidelink Control Channel (PSCCH). Thus, it is important for the network operator to define the PSCCH resource pool to

Group Discovery Time in Device-to-Device (D2D) Proximity Services (ProSe) Networks

May 4, 2017
Author(s)
David W. Griffith, Aziza Ben Mosbah, Richard A. Rouil
Device-to-device (D2D) communications for Long Term Evolution (LTE) networks relies on a discovery process to enable User Equipment (UE) to determine which D2D applications and services are supported by neighboring UEs. This is especially important for

Impact of timing on the Proximity Services (ProSe) synchronization function

January 8, 2017
Author(s)
Samantha Gamboa Quintiliani, Fernando Cintron, David W. Griffith, Richard A. Rouil
Long Term Evolution Advanced (LTE-A) introduces a new feature called Proximity Services (ProSe), which enables device-to-device (D2D) communication between User Equipment (UE) and the capability to operate out-of-network. In order to establish a D2D

BLER Performance Evaluation of LTE Device-to-Device Communications

November 9, 2016
Author(s)
Jian Wang, Richard A. Rouil
Long-Term Evolution (LTE) supporting Device-to-Device (D2D) communication is a feature introduced in 3rd Generation Partnership Project (3GPP) release 12. D2D communication is critical in public safety applications, which enables communication among first

2016 Public Safety Broadband Stakeholder Meeting - Day 2

August 31, 2016
Author(s)
Tracy A. McElvaney, Dereck R. Orr, Jeremy E. Benson, Richard A. Rouil, Andrew Thiessen, Paul Roberts, John T. Beltz, Joshua M. Franklin, Harlin McEwen, Christopher J. Walton, Paul A. Grassi, Ellen L. Ryan, Donald L. Harriss, Mika Skarp, Wim Brouwer
The Public Safety Communications Research program held its latest PSBB Stakeholder Meeting on June 7-9 2016 in San Diego, CA. This three-day meeting brought together representatives from public safety, federal agencies, industry and academia to highlight

2016 Public Safety Broadband Stakeholder Meeting - Day 3

August 31, 2016
Author(s)
Tracy A. McElvaney, Jeremy E. Benson, Richard A. Rouil, Andrew P. Thiessen, Paul Roberts, Steven Voran, John T. Beltz, Joshua M. Franklin, Harlin McEwen, Christopher J. Walton, Paul A. Grassi, Donald L. Harriss, Mika Skarp, Wim Brouwer
The Public Safety Communications Research program held its latest PSBB Stakeholder Meeting on June 7-9, 2016, in San Diego, CA. This three-day meeting brought together representatives from public safety, federal agencies, industry, and academia to
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