Courteous Priority Access to the Shared Commercial Radio for Public Safety in LTE Heterogeneous Networks

2014 ◽  
Author(s):  
Chafika Tata ◽  
Michel Kadoch
Keyword(s):  
Heterogeneous Networks ◽  
Public Safety ◽  
Commercial Radio

scholarly journals Efficient Priority Access to the Shared Commercial Radio with Offloading for Public Safety in LTE Heterogeneous Networks

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Chafika Tata ◽  
Michel Kadoch
Keyword(s):  
Heterogeneous Networks ◽  
Public Safety ◽  
The Other ◽  
Small Cells ◽  
Radio Network ◽  
Network Resources ◽  
Commercial Radio ◽  
Radio Resources ◽  
The Cost ◽  
The Impact

This paper presents the algorithm Courteous Priority Access to the shared commercial radio with offloading (CPAwO), for public safety network (PSN) over LTE heterogeneous networks (HetNets). We propose a solution for prioritization of PSN users with access to the commercial radio network resources. Our model offers additional radio resources to the PSN. Furthermore, it ensures a certain priority for commercial users by assigning quantities of additional radio resources through the courteous scheme. This allows delaying preemption and blocking bearers when the radio resources are limited. The other part of CPAwO model is to apply the principle of offloading in order to reduce the impact of the macrocell congestion. This technique is to switch the new bearers arriving at the LTE macrocells to small cells, in order to decrease the number of the blocked and interrupted bearers in the network. The results of the simulation showed that the allocation of radio resources via the courteous mechanism with offloading of new bearers to small cells reduces the rate of blocking bearers and delays the preemption of active bearers present in the LTE HetNets. It also reduces the cost of the end-to-end communications, thanks to the reallocation of free frequencies.

scholarly journals Licensed Shared Access System Possibilities for Public Safety

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Kalle Lähetkangas ◽  
Harri Saarnisaari ◽  
Ari Hulkkonen
Keyword(s):  
Spectrum Sharing ◽  
Public Safety ◽  
Point Of View ◽  
The Public ◽  
Robust Solutions ◽  
System Parameters ◽  
Access System ◽  
Commercial Radio ◽  
Radio Systems ◽  
Failure Models

We investigate the licensed shared access (LSA) concept based spectrum sharing ideas between public safety (PS) and commercial radio systems. While the concept of LSA has been well developed, it has not been thoroughly investigated from the public safety (PS) users’ point of view, who have special requirements and also should benefit from the concept. Herein, we discuss the alternatives for spectrum sharing between PS and commercial systems. In particular, we proceed to develop robust solutions for LSA use cases where connections to the LSA system may fail. We simulate the proposed system with different failure models. The results show that the method offers reliable LSA spectrum sharing in various conditions assuming that the system parameters are set properly. The paper gives guidelines to set these parameters.

Exposures to potentially traumatic events among public safety personnel in Canada.

2019 ◽  
Vol 51 (1) ◽  
pp. 37-52 ◽  
Author(s):  
R. Nicholas Carleton ◽  
Tracie O. Afifi ◽  
Tamara Taillieu ◽  
Sarah Turner ◽  
Rachel Krakauer ◽  
...  
Keyword(s):  
Public Safety ◽  
Traumatic Events ◽  
Potentially Traumatic Events ◽  
Public Safety Personnel ◽  
Safety Personnel
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