A Lunar Communication Satellite Network Architecture Emplying Internet Protocol, Laser Communication Technologies and Small Satellites

Author(s):  
Thom Stone ◽  
Kenneth Freeman ◽  
Raymond Gilstrap ◽  
Robert Hanel ◽  
Paul Lencioni ◽  
...  
2018 ◽  
Author(s):  
Phanidra Palagummi ◽  
Vedant Somani ◽  
Krishna M. Sivalingam ◽  
Balaji Venkat

Networking connectivity is increasingly based on wireless network technologies, especially in developing nations where the wired network infrastructure is not accessible to a large segment of the population. Wireless data network technologies based on 2G and 3G are quite common globally; 4G-based deployments are on the rise during the past few years. At the same time, the increasing high-bandwidth and low-latency requirements of mobile applications has propelled the Third Generation Partnership Project (3GPP) standards organization to develop standards for the next generation of mobile networks, based on recent advances in wireless communication technologies. This standard is called the Fifth Generation (5G) wireless network standard. This paper presents a high-level overview of the important architectural components, of the advanced communication technologies, of the advanced networking technologies such as Network Function Virtualization and other important aspects that are part of the 5G network standards. The paper also describes some of the common future generation applications that require low-latency and high-bandwidth communications.


Author(s):  
José Poças Rascão ◽  
Antonio-Juan Briones-Peñalver

The concept of architecture has been widely used in the context of information and communication technologies (ICT's). It is associated with such diverse terms, such as, business architecture, architecture of knowledge, strategic architecture, governance architecture, information architecture, architecture of competence, ICT's architecture, network architecture, computer architecture, data architecture, and many other examples one could give. Why the term is used in this way? What sets them apart? May it be replaced by a simpler and less catchy term, such as structure? Information architecture is a design methodology (concept) that is applied to any environments, being understood as an area located within a given context, consisting of content in streams that serves a community of managers/decision makers/users. The model can be to any informational environments of any area of knowledge, regardless of media, format, content or type of information that constitutes it, since a traditional library to a complex organization. It is not coupled to people, to the organizational structure or any technology.


1994 ◽  
Author(s):  
Timothy E. Busch ◽  
Paul J. Oleski ◽  
Kevin W. Dorrian ◽  
Donald J. Nicholson

Author(s):  
Hideaki Kotake ◽  
Yuma Abe ◽  
Tetsuharu Fuse ◽  
Toshihiro Kubooka ◽  
Morio Toyoshima

Author(s):  
Padmaja Kuruba ◽  
A. V. Sutagundar

There is a great demand in space and earth observations applications. Traditional satellite missions have complex design architecture involving high cost in design, operation, launch and maintenance. Thus single large satellite is replaced by multiple, small satellites with distributed network, collaboratively performing the same functionality of large satellite. This has been motivated researchers to explore the application of terrestrial Wireless Sensor Network (WSN) to space. The main objective of using space based WSN is to have full power of remote sensing capabilities at all the relevant time horizons and geographical scales with high performance and low cost. It also strives for an optimal solution that gratifies the standards, sizes, air interfaces, network architecture, access schemes, fault tolerance, operating system, hardware components of on-board diagnostics etc. This chapter discusses the characteristics and challenges of Space-Based Wireless Sensor Network (SWSN).


2013 ◽  
Vol 475-476 ◽  
pp. 817-823
Author(s):  
Chun Dong She

The traditional hierarchical network architecture has the defect of redundancy and no interaction between the layers. These defects have bad impact on QoS and network security. Hierarchical network protocols is difficult to be used to satellite network. Component-based network architecture is proposed for eliminating of hierarchical network design flaws. Network protocols will be divided according to the function for forming of low coupling functional components. It provides high quality services to the application using combined components.


2021 ◽  
Vol 101 (2) ◽  
Author(s):  
Zhengjia Xu ◽  
Ivan Petrunin ◽  
Antonios Tsourdos

AbstractRapid increases in unmanned aerial vehicles (UAVs) applications are attributed to severe spectrum collision issues, especially when UAVs operate in spectrum scarce environments, such as urban areas. Dynamic air-to-ground (A2G) link solutions can mitigate this issue by utilizing programmable communication hardware in the air and real-time assignment of spectrum resources to achieve high-throughput and low-latency connectivity between UAVs and operators. To mitigate the high-computation issue among ground control station (GCS) networks and provide a broad communication coverage for large number of UAVs, we propose an advanced UAV A2G communication solution integrated with the dynamic spectrum management (DSM) and network function virtualization (NFV) technology to serve urban operations. The edge-cutting UAV communication technologies are surveyed. The proposed scheme is discussed in terms of the high-level system architecture, virtual network architecture, specific virtual functions (SVFs), and affiliated operation support databases. Some major research challenges are highlighted and the possible directions of future research are identified.


Author(s):  
Orhan Orhan ◽  
Huseyin Goren

As number of mobile devices increases with Internet of Things (IoT) capability and power consumption is important in multi hop communication, there is need of considering network formation architectures inIoT networks.In this work power levels of nodes, urgency of messages to be transmitted are not taken into consideration, a general approach considered with all nodes with same power levels and no priority for messages to be sent.Another assumption is all nodes are on the same 2D plane.  Multi hop wireless network architectures studied and scalable, best performing architecture which is hypercubic network architecture is highlighted for IoT networks. Especially for large number of nodes needs to be considered hypercubic architecture performs much better than mesh, tree and ring kind of architectures in terms of dilation and number of connections. The simulation results are based on a simulator developed on C++ program. The results are showed that Hypercubic architecture with logarithmic dilation is much better than other network types. Cube Connected Cycles (CCC)based network architecture (which is derivative of Hypercube) can be preferred, especially when a constant degree is needed, in communication technologies such as Bluetooth. As a future work, a network architecture study can be made which takes energy levels and urgency of messages to be sent.


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