Performance Evolution of IEEE 802.11b Wireless Local Area Network

2011 ◽  
Author(s):  
Deepak Malik ◽  
Ankur Singhal ◽  
R. B. Patel ◽  
B. P. Singh
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Ieee 802.11B

Alternative Approach In Enhancing The Bandwidth Of The Microstrip Antenna

2012 ◽  
Author(s):  
D. Yoharaaj ◽  
Alyani Ismail ◽  
Raja Syamsul Azmir Raja Abdullah
Keyword(s):  
Microstrip Antenna ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Ieee 802.11B ◽  
Bandwidth Enhancement ◽  
Enhancement Technique ◽  
Wireless Applications ◽  
Wireless Application

Antena merupakan satu komponen penting dalam sistem komukasi wayarles. Antena mikrojalur boleh digunakan untuk aplikasi wayarles kerana ia mempunyai ciri–ciri seperti ringan, mudah dipasang dan dihasilkan dalam kuantiti yang banyak. Walaupun antenna mikrojalur mempunyai ciri–ciri tersebut yang menjadikannya sesuai untuk digunakan dalam aplikasi wayarles, namun ia mempunyai satu kekurangan yang agak serius, iaitu ciri lebar jalur yang sempit. Selalunya, antena mikrojalur mempunyai jalur di antara 1 – 3%. Tetapi, sekiranya kekurangan ini dapat diatasi, potensi antena mikrojalur boleh dimaksimumkan. Satu teknik alternatif untuk memperluaskan lebar jalur antena mikrojalur telah dikaji dan dicadangkan di sini. Aplikasi wayarles yang telah dipilih untuk dikaji ialah rangkaian kawasan tempatan tanpa wayar (WLAN) berasaskan kepada piawaian IEEE 802.11b. Di Malaysia, jalur WLAN adalah di antara 2.4 GHz hingga 2.48 GHz. Teknik yang dipilih untuk meluaskan lebar jalur ini ialah Antena Mikrojalur Dua Tampal Serupa Dengan Ruangan Udara (IDMA). Dengan menggunakan teknik ini, perluasan lebar jalur hingga lebih kurang 11% dapat dicapai. Jalur ini sememangnya dapat merangkumi jalur WLAN dengan frekuensi operasinya pada 2.45 GHz. Kata kunci: Rangkaian kawasan tempatan wayarles (WLAN); antena mikrojalur dua tampal serupa dengan ruangan udara (IDMA) Antenna is a vital component in wireless application systems. The microstrip antenna can be used for wireless applications as it has features such as light weight, easily mounted and it is easy to mass produce. Although there are many features that suits well for microstrip antenna to be deployed for wireless applications, there is a very serious limitation where it has a very narrow bandwidth. The typical bandwidth of the microstrip antennas is between 1 – 3%. If this limitation is eliminated, the microstrip antenna can be used to its full potential. An alternative bandwidth enhancement technique is studied and then proposed in order to broaden the bandwidth of the microstrip antenna. The wireless application that is selected to be studied is the Wireless Local Area Network (WLAN) based on the IEEE 802.11b standard. In Malaysia, this WLAN band spans from 2.4 GHz to 2.48 GHz. The bandwidth enhancement technique which is selected is the Identical Dual–Patch Microstrip Antenna with Air–Gap (IDMA). By using this technique, a bandwidth enhancement of about 11% has been achieved. This bandwidth very well covers the required WLAN band with an operating frequency of 2.45 GHz. Key words: Wireless local area network (WLAN); identical dual patch microstrip antenna with air–gap (IDMA)

scholarly journals Ultrawideband Vivaldi Antenna for DVB-T, WLAN, and WiMAX Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Dalia M. Elsheakh ◽  
Esmat A. Abdallah
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Pin Diode ◽  
Area Network ◽  
Ieee 802.11B ◽  
High Frequency Structure Simulator ◽  
Vivaldi Antenna ◽  
Meander Line ◽  
Good Agreement

Compact Vivaldi patch antenna with a parasitic meander line is presented in this paper. A PIN diode switch is used to connect and disconnect ultrahigh frequency band (UHF) with ultrawide bandwidth (UWB). The operating frequencies can be switched among different services, depending on the switching states (ON/OFF) to add the lower band when required. This antenna is suitable for portable DVB-T which extended from 450 MHz to 850 MHz receiver applications and the WLAN (Wireless Local Area Network) IEEE 802.11b,g (5.1–5.8) GHz frequency bands and WiMAX band (3.3–3.8) GHz. The measured reflection coefficient of the proposed antenna is compared with the simulated one; good agreement is observed. Also, simulated radiation pattern of the antenna is presented. All simulations are carried out using the EM commercial simulator, high frequency structure simulator (HFSS) ver.13.

Link-Level Simulator for Wireless local Area Network

2018 ◽  
Vol 6 (7) ◽  
pp. 314
Author(s):  
Chaithra. H. U ◽  
Vani H.R
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area Networks ◽  
Local Area ◽  
Long Term Evolution ◽  
Wireless Local Area Networks ◽  
Area Network ◽  
Network Simulator ◽  
Term Evolution

Now a days in Wireless Local Area Networks (WLANs) used in different fields because its well-suited simulator and higher flexibility. The concept of WLAN  with  advanced 5th Generation technologies, related to a Internet-of-Thing (IOT). In this project, representing the Network Simulator (NS-2) used linked-level simulators for Wireless Local Area Networks and still utilized IEEE 802.11g/n/ac with advanced IEEE 802.11ah/af technology. Realization of the whole Wireless Local Area Networking linked-level simulators inspired by the recognized Vienna Long Term Evolution- simulators. As a outcome, this is achieved to link together that simulator to detailed performances of Wireless Local Area Networking with Long Term Evolution, operated in the similar RF bands. From the advanced 5th Generation support cellular networking, such explore is main because different coexistences scenario can arise linking wireless communicating system to the ISM and UHF bands.

PERANCANGAN ANTENA MIKROSTRIPRECTANGULAR

Jurnal Teknik ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Heru Abrianto
Keyword(s):  
Dielectric Constant ◽  
Patch Antenna ◽  
Wireless Lan ◽  
Microstrip Antenna ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Dual Polarization ◽  
Feeding Technique

Microstrip antenna which designed with dual feeding at 2.4 GHz and 5.8 GHz can meet WLAN (Wireless Local Area Network) application.Antenna fabrication use PCB FR4 double layer with thickness 1.6 mm and dielectric constant value 4.4. The length of patch antenna according to calculation 28.63 mm, but to get needed parameter length of patch should be optimized to 53 mm. After examination, this antenna has VSWR 1.212 at 2.42 GHz and 1.502 at 5.8 GHz, RL -13.94 dB at 2.42 GHz and -20.357 dB at 5.8 GHz, gain of antenna 6.16 dB at 2.42 GHz and 6.91 dB at 5.8 GHz, the radiation pattern is bidirectional. Keywords : microstrip antenna, wireless LAN, dual polarization, single feeding technique

IEEE 802.11 Tutorial

2018 ◽  
Author(s):  
Kiramat
Keyword(s):  
Access Control ◽  
Ieee 802.11 ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Physical Layer ◽  
Media Access Control ◽  
Area Network ◽  
Media Access ◽  
Computer Communications

IEEE 802.11 is a set of media access control (MAC) and physical layer (PHY) specifications for implementing wireless local area network (WLAN) computer communications. Maintained by the Institute of Electrical and Electronics Engineers (IEEE) LAN/MAN Standards Committee (IEEE 802). This document highlights the main features of IEEE 802.11n variant such as MIMO, frame aggregation and beamforming along with the problems in this variant and their solutions

scholarly journals Multi-terminal Experimental System Based on Wireless Local Area Network

2020 ◽  
Vol 1550 ◽  
pp. 032078
Author(s):  
Kaigang Fan ◽  
Xin Chen ◽  
Biao Zhao ◽  
Jiale Wang ◽  
Wenbin Cui ◽  
...  
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Experimental System ◽  
Local Area ◽  
Area Network
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