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Search Publications by: Chunmei Liu (Fed)

Displaying 26 - 35 of 35

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

Blind Calibration of Phase Drift in Millimeter-Wave Channel Sounders

June 11, 2020

Author(s)

Jack Chuang, Jelena Senic, Chunmei Liu, Camillo Gentile, Sung Yun Jun, Derek Caudill

Millimeter-wave channel sounders are much more sensitive to phase drift than their microwave counterparts by virtue of shorter wavelength. This matters when coherently phasing (electronic or mechanical) antenna scans collected over seconds, minutes, or

An Effective and Efficient Dynamic eMBMS Multicast Grouping Scheduling Algorithm in MBSFNs for Public Safety Scenarios

June 5, 2020

Author(s)

Siyuan Feng, Chunmei Liu, Chen Shen, HYEONG-AH Choi, Richard A. Rouil

The LTE (Long-Term Evolution) eMBMS (evolved Multimedia Broadcast Multicast Service) technology employed in MBSFNs (Multicast Broadcast Single Frequency Networks) has been shown to be capable of considerably increasing the capacity of serving public safety

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

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