A wireless broadband ad-hoc ATM local-area network

1995 ◽  
Vol 1 (2) ◽  
pp. 161-174 ◽  
Author(s):  
K. Y. Eng ◽  
M. J. Karol ◽  
M. Veeraraghavan ◽  
E. Ayanoglu ◽  
C. B. Woodworth ◽  
...  
Keyword(s):  
Ad Hoc ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Wireless Broadband

scholarly journals PERANCANGAN TOPOLOGI DINAMIS SECARA ACAK DALAM MOBILE AD- HOC NETWORK DENGAN PENDEKATAN PEMODELAN

2015 ◽  
Vol 6 (1) ◽  
pp. 119
Author(s):  
S.N.M.P. Simamora
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Mobile Ad Hoc ◽  
Network Status

ABSTRAK Mobile Ad-hoc Network (MANET) sebagai wireless local area network yang bersifat dinamis dalam hal pergerakan node berperan untuk mengkondisikan setiap terminal client sebagai backwarding/fowarding-devices. Dengan demikian kondisi topologi jaringan akan berubah seiring dengan perubahan posisi pada node-client. Hal ini tentu saja akan memberikan keuntungan yang baik pada client dalam segi fleksibilitas tempat, mengurangi biaya instalasi, reduksi penyediaan infrastruktur dan sifat temporary instalasi sesuai dengan kebutuhan yang diinginkan. Pada penelitian ini telah dilakukan pemodelan dan simulasi untuk menunjukkan algoritma routing-network, status node yang terlibat dalam MANET, dan perhitungan nilai QoS dari komunikasi-data yang dibangun antar node yang saling bertetangga. Hasilnya menunjukkan perubahan topologi jaringan mengalami perubahan seiring dengan perubahan skenario yang dibangkitkan secara random dan stokastik; dan perubahan topologi jaringan ini merepresentasikan perubahan posisi node dalam MANET saat membangun komunikasi-data dari node-sender ke node-receiver. Metode pengujian menggunakan teknik kuantitatif serta kondisi random direpresentasikan dengan pembangkitan bilangan random yang bekerja berdasar Distribusi Normal/Gauss. Algoritma SNetS yang digunakan telah dapat mengakomodir jumlah N-node, sehingga kondisi node-terminal, bagaimana status node, serta QoS yang didapatkan mendekati kondisi real. Kata kunci: mobile ad-hoc network, backwarding/fowarding-devices, model, topologi dinamis, random, algoritma SNetS.

scholarly journals Security of Mobile and Wireless Networks

10.28945/2491 ◽  
2002 ◽  
Author(s):  
Kaj J. Grahn ◽  
Göran Pulkkis ◽  
Jean-Sebastien Guillard
Keyword(s):  
Local Area Network ◽  
High Capacity ◽  
Local Area ◽  
Area Network ◽  
Security Measures ◽  
Development Environment ◽  
Wireless Network Security ◽  
Research Areas ◽  
Wireless Broadband ◽  
Wireless Broadband Network

This paper gives a topical overview of wireless network security aspects. Security measures taken depend on the different protocols, standards, techniques and systems available. A brief introduction to security protocols, standards and corresponding technologies is given. The essay will concentrate on 2G, 2.5G, 3G and wireless local area networks. Standards, like WAP, IEEE 802.11, HomeRF, HIPERLAN/2, IPSec and Bluetooth, are included. A local area network, MediaPoli, has been implemented to work as a testbed for new innovations, products and services. The development environment is based on this high-capacity wired/wireless broadband network. Key research areas, actual projects and offered services are discussed. All activities aim at the future information society.

Design of asymmetrical multiple open slot loaded microstrip antenna for WiBro/WiMAX/WLAN band application

2020 ◽  
Vol 34 (18) ◽  
pp. 2050198
Author(s):  
Ravindra Arya ◽  
Deepak K. Raghuvanshi
Keyword(s):  
Microstrip Antenna ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Substrate Material ◽  
Area Network ◽  
Communication Design ◽  
Wireless Broadband ◽  
Peak Gain ◽  
Good Agreement

In this communication, design of asymmetrical multiple open slot loaded microstrip antenna for WiBro/WiMAX/WLAN band operation is presented. The substrate material is chosen as FR4 ([Formula: see text], [Formula: see text]) and fed by coaxial feeding. This antenna is able to radiate at four resonating bands. The antenna is radiating between 2.29 and 2.39 GHz, which is suitable for Wireless Broadband, WiBro. In parallel to this design, this antenna is also radiating in (5.16–5.36 GHz and 5.725–5.825 GHz) range which cover Wireless Local Area Network, WLAN (5.2/5.8 GHz) bands. Moreover, this antenna is radiating in (3.28–3.65 GHz, 5.45–5.65 GHz) range which is suitable for Worldwide Interoperability for Microwave Access, WiMAX (3.5/5.5) GHz bands. Measured results have proven that there is a good agreement with the simulated results of farfield patterns, reflection coefficient, peak gain of the proposed asymmetrical multiple open slot loaded microstrip antenna. The volume of this design is [Formula: see text]. Radiation pattern is noticed as stable at all obtained resonating frequencies. Maximum gain of 4.2 dBi is achieved between 3.28 and 3.65 GHz frequency band.

Research to Household Sub-Network Development Based on Bluetooth Control Technology

2014 ◽  
Vol 989-994 ◽  
pp. 4215-4218
Author(s):  
Long Qian
Keyword(s):  
Ad Hoc ◽  
Local Area Network ◽  
Local Area ◽  
Home Network ◽  
Portable Devices ◽  
Area Network ◽  
Single Chip ◽  
Single Node ◽  
Control Protocol ◽  
Control Terminal

With the development of household appliances, the short of communication among them is more and more becoming a problem. At present there is no central point of control among the traditional home appliances, and we cannot access them through Internet. To solve these issues, home network is proposed to connect all the appliances, home PC and portable devices together using network technology. Controlling all the appliances through one single node ( the home network gateway), home network makes life much simpler and convenient. There are several local area network technologies applicable to home network. Bluetooth technology is chosen in this paper as the home networking technology due to its many advantages over others. The implementation scheme of home control sub-network based on Bluetooth serial part profile ( SPP) and the standards of Home Network Platform in China is proposed. According to actual application fields, the communication protocol architecture for this scheme is established by using appliance control protocol promoted by the manufacturers and universal device control protocol ( UDCP) over SPP. Many management functions of appliance terminals are realized such as appending, login, operation, logout and alarming. Implementation methods of appliance terminal based on an entirely embedded single-chip manner and mobile control terminal which is realized by computer simulation are proposed. Analysis and solution of baud rate error brought by inaccurate crystal frequencies are presented. Further discussion about applying ad hoc technology to home control sub-network is carried out.

scholarly journals Relaying in Telecommunications

2018 ◽  
Author(s):  
Abbas Khurum
Keyword(s):  
Vehicular Networks ◽  
Ad Hoc ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Cooperative Networks ◽  
Delay Tolerant Network ◽  
Area Network ◽  
Wireless Interference ◽  
Delay Tolerant

In recent years, Vehicular Ad Hoc Network (VANET) has attracted considerable attention both from academia and industry. In VANET, multiple access technologies such as cellular system, Wireless Local Area Network (WLAN) are integrated to support the service requirements of vehicular users. Multi-hopping vehicular networks (VANETs) provide environmental awareness across large regions even if there does not exist direct communication between several vehicles within the region. However, the volume of messages that are received and rebroadcasted via the relay vehicles can cause broadcast storms and network jams. In them the systems are subject to wireless interference and disconnections, thus hindering the availability and reliability of source-destination connections. Another major problem arises when VANETs are sparse, causing excessive retransmissions and delays due to long periods without maintain connection between pair of vehicles. This article reviews the literature related to Vehicular Delay Tolerant Network with focus on Cooperation. It starts by examining definitions of some of the fields of research in VDTN. An overview of VDTN with cooperative networks is presented.

BAHAMA: a broadband ad-hoc wireless ATM local-area network

2002 ◽  
Author(s):  
K.Y. Eng ◽  
M.J. Karol ◽  
M. Veeraraghavan ◽  
E. Ayanoglu ◽  
C.B. Woodworth ◽  
...  
Keyword(s):  
Ad Hoc ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Wireless Atm

scholarly journals Framework for Enterprise Local Area Network Design: an Object-Connectivity Approach

2021 ◽  
Author(s):  
Sunil Seneviratne ◽  
Rohan de Silva
Keyword(s):  
Network Design ◽  
Design Methodology ◽  
Ad Hoc ◽  
Local Area Network ◽  
Organizational Structures ◽  
Local Area ◽  
Design Approach ◽  
Area Network ◽  
Top Down ◽  
Technical Requirements

Local Area Networks (LANs) provide necessary infrastructure and services required for organizations to conduct their businesses efficiently and securely. While a small LAN could be designed and deployed in ad-hoc fashion, an enterprise LAN should be designed systematically starting from analyzing the business and technical requirements and constraints. The Top-down network design methodology has been an excellent way to design a new network, however it has disadvantages considering its time-consuming process of designing networks. The organizational structures change in a fast pace in these days. These changes require their networks also to be realigned at the same pace. In this climate, a time-consuming design approach such as the Top-down design approach may not be the best option. In this paper, we propose a framework of a network design methodology that could be used for quickly designing a LAN for an organization in this landscape while satisfying their business and technical requirements.

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