Assessing C2 Communications for UAS Traffic Management

The National Aeronautics and Space Administration's (NASA) Unmanned Aircraft Systems (UAS) Traffic Management (UTM) project works to develop tools and technologies essential for safely enabling civilian low-altitude UAS operations. Currently there is no established infrastructure to enable and safely manage the widespread use of low-altitude airspace and UAS operations, regardless of the type of UAS. The UTM technical challenge will develop comprehensive and validated airspace operations and integration requirements to safely enable large-scale persistent access to visual line of sight and autonomous beyond visual line of sight small UAS in low-altitude airspace. Within the UTM project, a number of communications technologies to support UTM command and control (C2) are under investigation. In particular, commercial networked cellular systems are being tested and assessed for their ability to meet the reliability, scalability, cybersecurity and redundancy required. NASA Glenn Research Center is studying some of the aspects of employing such networks for UTM C2 communications. This includes the development of a test platform for sensing and characterizing the airborne C2 communications environment at various altitudes and in various terrains and topologies, measuring such aspects as received signal strength and interference. System performance aspects such as latency in the link, handover performance, packet error loss rate, drop outs, coverage gaps and other aspects impacting UTM operation will also be assessed. In this paper we explore some of the C2 approaches being proposed and demonstrated in the UTM project, the reliability, availability and other general C2 performance requirements, and approaches to evaluating and analyzing UTM C2 links based on commercial cellular networks

5G wireless network support using umanned aerial vehicles for rural and low-Income areas

>Magister Scientiae - MScThe fifth-generation mobile network (5G) is a new global wireless standard that enables state-of-the-art mobile networks with enhanced cellular broadband services that support a diversity of devices. Even with the current worldwide advanced state of broadband connectivity, most rural and low-income settings lack minimum Internet connectivity because there are no economic incentives from telecommunication providers to deploy wireless communication systems in these areas. Using a team of Unmanned Aerial Vehicles (UAVs) to extend or solely supply the 5G coverage is a great opportunity for these zones to benefit from the advantages promised by this new communication technology. However, the deployment and applications of innovative technology in rural locations need extensive research

Broadband Technology Roadmap for Rural Areas in the Andes and Amazon Regions of Peru

This dissertation addresses the research question: What is the broadband roadmap for introducing broadband services to unserved areas in the Andes and Amazon Regions of Peru? Detailed technical and engineering cost analyses are conducted for evaluating the deployment and operation of wireless broadband local access networks for a 10-year period in two scenarios in the Andes and Amazon regions of Peru, in the context of the Peruvian National Broadband Plan, using current wireless broadband technologies (Wi-Fi, WiMAX, LTE, TVWS) and new stratospheric platforms (super-pressure balloons). These analyses show that based on current spectrum policies LTE is the lowest cost option. Current available spectrum policies and alternatives to enable more spectrum for new access network deployments are also proposed. Finally, a technology broadband roadmap for the 10-year period is presented, which includes using stratospheric balloons (carrying micro-LTE base stations) for the first years, and deploying complementary terrestrial LTE networks for the rest of the 10-year period

Broadband Technology Roadmap for Rural Areas in the Andes and Amazon Regions of Peru

This dissertation addresses the research question: What is the broadband roadmap for introducing broadband services to unserved areas in the Andes and Amazon Regions of Peru? Detailed technical and engineering cost analyses are conducted for evaluating the deployment and operation of wireless broadband local access networks for a 10-year period in two scenarios in the Andes and Amazon regions of Peru, in the context of the Peruvian National Broadband Plan, using current wireless broadband technologies (Wi-Fi, WiMAX, LTE, TVWS) and new stratospheric platforms (super-pressure balloons). These analyses show that based on current spectrum policies LTE is the lowest cost option. Current available spectrum policies and alternatives to enable more spectrum for new access network deployments are also proposed. Finally, a technology broadband roadmap for the 10-year period is presented, which includes using stratospheric balloons (carrying micro-LTE base stations) for the first years, and deploying complementary terrestrial LTE networks for the rest of the 10-year period

Technology Forecasting for Wireless Communication

Wireless communications technologies have undergone rapid changes over the last 30 years from analog approaches to digital-based systems. These technologies have improved on many fronts including bandwidth, range, and power requirements. Development of new telecommunications technologies is critical. It requires many years of efforts. In order to be competitive, it is critical to establish a roadmap of future technologies. This paper presents a framework to characterize, assess and forecast the wireless communication technologies. A DEA-based methodology was used for predicting the state-of-the-art in future wireless communications technologies

Review on NEXT Generation Technologies of Wireless Communication

Cellular communication has brought in an unparalleled revolution in the field of communication during the past two decades. The mobile communication industry growth has surpassed growth of all other fields. Even o ur own country is not left behind. The number of mobile subscribers in the country rose to over 9 11 m in Mar 201 2 . 3G system has been introduced in line with other countries. Talks have started about 4G / 5G. The implementation of 4G /5G will most probably be the ultimate goal in the field of communication