Convergent Architecture for Worldwide Interoperability for Microwave Access-Universal Mobile Telecommunications System-Wireless Local Area Network Interworking Using IP Multimedia Subsystem Signaling Analysis to Achieve Quality of Service

2012 ◽  
Vol 10 (8) ◽  
pp. 1582-1606
Author(s):  
G. Vijayalakshmy ◽  
G. Sivaradje
Keyword(s):  
Quality Of Service ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Ip Multimedia Subsystem ◽  
Mobile Telecommunications ◽  
Universal Mobile Telecommunications System

Bandwidth enhancement using modified L-probe fed slotted patch antenna for WLAN and UMTS applications

2018 ◽  
Vol 11 (3) ◽  
pp. 302-312 ◽  
Author(s):  
Rakesh N. Tiwari ◽  
Prabhakar Singh ◽  
Binod Kumar Kanaujia
Keyword(s):  
Patch Antenna ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Circuit Theory ◽  
Area Network ◽  
Mobile Telecommunications ◽  
Bandwidth Enhancement ◽  
Universal Mobile Telecommunications System ◽  
High Bandwidth

AbstractIn this paper, two different radiating structures fed with modified L-probe, are reported using a circuit theory concept. The proposed antennas are operating in wireless local area network (WLAN) and universal mobile telecommunications system (UMTS) frequency bands. In the first design, an E-shaped patch is studied to increase the bandwidth. It is observed that the bandwidth is directly proportional to notch dimensions. In the second design, E-shaped patch is modified to reduce the antenna size up to 30% with high bandwidth. In the first design, measured bandwidth and gain achieved are 32.68% (1.92–2.67 GHz) and 8.43 dBi while in second design it is 34.19% (1.94–2.74 GHz) and 8.39 dBi, respectively. Radiation patterns for both the antennas are symmetrical and broadside in nature. The proposed antennas are fabricated and measured results compare well with the theoretical and simulated results.

scholarly journals Quality of Service (QoS) Management for Local Area Network (LAN) Using Traffic Policy Technique to Secure Congestion

Computers ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 39
Author(s):  
Wan Muhd Hazwan Azamuddin ◽  
Rosilah Hassan ◽  
Azana Hafizah Mohd Aman ◽  
Mohammad Kamrul Hasan ◽  
Ahmed Salih Al-Khaleefa
Keyword(s):  
Quality Of Service ◽  
Service Providers ◽  
Local Area Network ◽  
Local Area ◽  
Advanced Technology ◽  
Area Network ◽  
Internet Service ◽  
Internet Connection ◽  
It Department

This study presents the proposed testbed implementation for the Advanced Technology Training Center (ADTEC) Batu Pahat, one of Malaysia’s industrial training institutes. The objectives of this study are to discover the issues regarding network congestion, propose a suitable method to overcome such issues, and generate output data for the comparison of the results before and after the proposed implementation. The internet is directly connected to internet service providers (ISPs), which neither impose any rule nor filter the traffic components; all connections comply on the basis of the base effort services provided by the ISP. The congestion problem has been raised several times and the information technology (IT) department has been receiving complaints about poor and sometimes intermittent internet connection. Such issues provide some ideas for a possible solution because the end client is a human resource core business. In addition, budget constraints contribute to this problem. After a comprehensive review of related literature and discussion with experts, the implementation of quality of service through add-on rules, such as traffic policing on network traffic, was proposed. The proposed testbed also classified the traffic. Results show that the proposed testbed is stable. After the implementation of the generated solution, the IT department no longer receives any complaints, and thus fulfills the goal of having zero internet connection issues.

scholarly journals Implementasi Mos dan E-Model Untuk Mengetahui Kualitas Komunikasi Jaringan VoIP

2021 ◽  
pp. 24-27
Author(s):  
Satria Yudha Prayogi ◽  
Sony Bahagia Sinaga
Keyword(s):  
Communication Technology ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Video Conferencing ◽  
Local Area ◽  
Voice Over Internet Protocol ◽  
Area Network ◽  
Video Communications ◽  
Voice Communication

Voice Over Internet Protocol (VoIP) is a voice communication technology (voice) that uses IP which can be done electronically and in realtime. In building VoIP devices used such as IPPBX Server, IPPBX Gateway IP and other supporting devices such as mikrotik. To design VoIP generally implemented using a local area network (LAN) or a wireless local area network (WLAN). In this study, an analysis of the quality of VoIP network communication is to determine the problems caused by communication using VoIP, so that VoIP can be used to maximize the existing internet network. This VoIP network can save costs when communicating such as video communications or video conferencing.

scholarly journals Mapping and Recognition of Radio Frequency Clutter in Various Environments in Australia

2010 ◽  
Vol 56 (2) ◽  
pp. 137-144
Author(s):  
Johnson Agbinya ◽  
Vivian Lee ◽  
Khalid Aboura ◽  
Zenon Chaczko
Keyword(s):  
Radio Frequency ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Ultra Wideband ◽  
Area Network ◽  
Radio Frequency Radiation ◽  
Radio Frequency Spectrum ◽  
Universal Mobile Telecommunications System ◽  
Primary Frequency

Mapping and Recognition of Radio Frequency Clutter in Various Environments in AustraliaRadio frequency spectrum mapping allows determining the radio frequency signatures prevalent within an environment. We address the primary frequency bands used for cellular, wireless Local Area Network (LAN), Universal Mobile Telecommunications System (UMTS) and Ultra-wideband (UWB) communications. The purpose of the experiment presented in this paper is to map the detected radio frequencies within an environment and display the collated data on a graphical user interface. A program identifies the presence of the aforementioned radio frequency signatures and recognizes signal levels which exceed the exposure standards enforced by the Australian Communication and Media Authority. The results assist in the understanding of the ramifications of long-term exposure to radio frequency radiation associated with the continued proliferation of wireless devices.

scholarly journals Performance evaluation of WLAN in enterprise WAN with real-time applications based on OPNET modeler

2021 ◽  
Vol 21 (2) ◽  
pp. 911
Author(s):  
Mohammed Ghadhban Al-Hamiri ◽  
Haider J. Abd ◽  
Hanaa M. Al Abboodi
Keyword(s):  
Response Time ◽  
Network Performance ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
File Transfer ◽  
Hybrid Star ◽  
Hybrid Ring

<p><span>Wireless local area networks (WLAN) has been used recently due to their benefits which exhibits outstanding mobility with easier and faster configurations. The wireless local area network performance is much influenced by both network topology and hardware specifications and thus will impact the quality of service (QoS) parameters which are delay, load, and response time. This works estimated the performance of WLAN in enterprise WAN based on the OPNET modeler. Three scenarios have been suggested which are FDDI scenario, FDDI Hybrid Star scenario, and FDDI hybrid ring scenario involving web browsing (HTTP) and file transfer protocol (FTP). Hardware objects and software configurations kept the same for all proposed scenarios. Different types of links and topologies have been applied among WLAN subnets as well as the involved gateway has been changed to measure parameters of quality of services (QoS) for all scenarios used. The findings confirmed that the FDDI Hybrid Ring scenario presents better performance than the FDDI Hybrid Star Scenario and FDDI scenario in terms of WLAN delay, WLAN load, FTP download response time, and HTTP object response time.</span></p>

scholarly journals Kualitas Jaringan Pada Jaringan Virtual Local Area Network (VLAN) Yang Menerapkan Linux Terminal Server Project (LTSP)

2017 ◽  
Vol 1 (2) ◽  
pp. 82-89
Author(s):  
Lipur Sugiyanta ◽  
Badia Raja
Keyword(s):  
Quality Of Service ◽  
Packet Loss ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
International Telecommunication Union ◽  
International Telecommunication

Virtual Local Area Network (VLAN) merupakan sebuah teknik dalam jaringan komputer untuk menciptakan beberapa jaringan yang berbeda tetapi masih merupakan sebuah jaringan lokal yang tidak terbatas pada lokasi fisik seperti LAN sedangkan Linux Terminal Server Project (LTSP) merupakan sebuah teknik terminal server yang dapat memperbanyak workstation dengan hanya menggunakan sebuah Linux server. Dalam membangun sebuah jaringan komputer perlu memperhatikan beberapa hal dan salah satunya adalah kualitas jaringan dari jaringan yang dibangun. Pada penelitian ini bertujuan untuk mengetahui pengaruh jumlah client terhadap kualitas jaringan berdasarkan parameter delay dan packet loss pada jaringan VLAN yang menerapkan LTSP. Oleh karena itu, penelitian ini menggunakan jenis metode penelitian kualitatif dengan memperhatikan standar yang digunakan dalam penelitian yaitu standar International Telecommunication Union – Telecommunication (ITU-T). Penerapan penelitian ini menggunakan sistem operasi pada server adalah Ubuntu Desktop 14.04 LTS. Berdasarkan dari hasil penelitian yang ditemukan dapat disimpulkan bahwa benar terbukti bahwa makin banyak client yang dilayani oleh server maka akan menurunkan kualitas jaringan berdasarkan parameter Quality of Service (QoS) yang digunakan yaitu delay dan packet loss.

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