Analytical modelling of a cognitive IEEE 802.11 wireless local area network overlaid on a cellular network

2012 ◽  
Vol 6 (15) ◽  
pp. 2455-2464 ◽  
Author(s):  
M. Moradian ◽  
F. Ashtiani
Keyword(s):  
Ieee 802.11 ◽  
Cellular Network ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Analytical Modelling ◽  
Area Network

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 A Cross-Layer Key Management Scheme for MIPv6 Fast Handover over IEEE 802.11 Wireless LAN

2015 ◽  
Vol 2015 ◽  
pp. 1-11
Author(s):  
Chang-Seop Park ◽  
Hyun-Sun Kang ◽  
Jaijin Jung
Keyword(s):  
Ieee 802.11 ◽  
Key Management ◽  
Wireless Lan ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Mobile Ipv6 ◽  
Area Network ◽  
Fast Handover ◽  
Security Scheme

A new key management and security scheme is proposed to integrate Layer Two (L2) and Layer Three (L3) keys for secure and fast Mobile IPv6 handover over IEEE 802.11 Wireless Local Area Network (WLAN). Unlike the original IEEE 802.11-based Mobile IPv6 Fast Handover (FMIPv6) that requires time-consuming IEEE 802.1x-based Extensible Authentication Protocol (EAP) authentication on each L3 handover, the newly proposed key management and security scheme requires only one 802.1x-EAP regardless of how many L3 handovers occur. Therefore, the proposed scheme reduces the handover latency that results from a lengthy 802.1x-based EAP. The proposed key management and security scheme is extensively analyzed in terms of security and performance, and the proposed security scheme is shown to be more secure than those that were previously proposed.

Analysis and Performance Evaluation of IEEE 802.11 WLAN

2011 ◽  
pp. 281-286
Author(s):  
Rajeshwari Malekar ◽  
R. C. Jaiswal
Keyword(s):  
Ieee 802.11 ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Cost Effective ◽  
Local Area ◽  
Area Network ◽  
Available Bandwidth ◽  
Real Time Traffic ◽  
Voice Traffic ◽  
Call Capacity

With fast deployment of wireless local area networks VoIP over IEEE 802.11 wireless local area network (WLAN) is growing very fast and is providing a cost effective alternative for voice communications. WLANs were initially set up to handle bursty nonreal time type of data traffic. Therefore, the wireless access protocols initially defined are not suitable for voice traffic. Subsequently, updates in the standard have been made to provision for QoS requirements of data, especially the real time traffic of the type voice and video. Despite these updates, however, transmitting voice traffic over WLAN does not utilize the available bandwidth (BW) efficiently, and the number of simultaneous calls supported in practice is significantly lower than what the BW figures would suggest. Several modifications have been proposed to improve the call capacity, and recently isochronous coordination function (ICF) was introduced to mitigate the problem of low call capacity. The proposed modified ICF which further improves the performance in terms of the call capacity. The proposed scheme uses multiplexing and multicasting in the downlink to substantially increase the call capacity.

scholarly journals ANALISIS PENGARUH JUMLAH CLIENT DAN JARAK CAKUPAN WIRELESS AP IEEE 802.11 N TERHADAP KUALITAS JARINGAN WLAN MENGGUNAKAN TEKNIK UR DAN WDS

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Ilmiatul Hafazah ◽  
I Wayan Agus Arimbawa ◽  
Andy Hidayat Jatmika
Keyword(s):  
Ieee 802.11 ◽  
Packet Loss ◽  
Distribution System ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Ieee 802.11N

Standar jaringan WLAN yang paling banyak beredar dipasaran saat ini adalah IEEE 802.11n. Untuk membangun jaringan WLAN yang lebih praktis dapat menggunakan teknik UR dan WDS.  Penelitian ini bertujuan untuk dapat mengukur dan menganalisa pengaruh jumlah client dan jarak terhadap kualitas jaringan WLAN yang menggunakan teknik UR dan WDS dengan parameter ukur bandwidth, jitter, dan packet loss. Hasil analisa data diketahui bahwa semakin banyak client dan semakin jauh jarak transmisi dapat menurunkan kualitas jaringan UR dan WDS. Kualitas jaringan terbaik dihasilkan jaringan UR pada jarak 7,5m dengan rata-rata bandwidth sebesar 11934.7035 Kbps, rata-rata jitter sebesar 2.3563135 ms, dan rata-rata packet loss sebesar 1.90% dibandingkan jaringan WDS dengan rata-rata bandwidth 3846.9135 Kbps, rata-rata jitter 9.496095 ms, dan rata-rata packet loss 5.23%. Kualitas jaringan terburuk dihasilkan jaringan WDS pada jarak 30m dengan rata-rata bandwidth sebesar 898.32735 Kbps, rata-rata jitter sebesar 37.32591 ms, dan rata-rata packet loss sebesar 47.10% dibandingkan jaringan UR dengan rata-rata bandwidth 8859.797 Kbps, rata-rata jitter 13.082195 ms, dan rata-rata packet loss 19.24%. Hasil keseluruhan pengukuran diketahui bahwa teknik UR lebih unggul dibandingkan WDS dalam membangun jaringan WLAN.   KATA KUNCI : WLAN (Wireless Local Area Network), UR (Universar Repeater), WDS (Wireless Distribution System), Bandwidth, Jitter, Packet Loss

scholarly journals Desain Antena Wi-Fi Dengan Media Seng

2012 ◽  
Vol 4 (2) ◽  
pp. 18
Author(s):  
Eka Wahyudi ◽  
Adnan Purwanto ◽  
Teguh Iklas
Keyword(s):  
Ieee 802.11 ◽  
Metropolitan Area ◽  
Wireless Local Area Network ◽  
Service Providers ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Internet Service ◽  
Metropolitan Area Network ◽  
Link Budget

Teknologi Internet berbasis Wi-Fi dibuat dan dikembangkan di Amerika Serikat yaitu oleh Institute of Electrical and Electronis Engineers (IEEE) yang berdasarkan kelompok standar teknis perangkat bernomor IEEE 802.11. Perangkat Wi-Fi sebenarnya tidak hanya mampu bekerja di jaringan Wireless Local Area Network (WLAN), tetapi juga di jaringan Wireless Metropolitan Area Network (WMAN). Kuantitas pengguna Internet berbasis teknologi Wi-Fi yang semakin meningkat di berbagai belahan dunia, telah mendorong internet service providers (ISP) untuk membangun hotspot yang di berbagai kota-kota besar. Hotspot merupakan suatu tempat dimana tersedianya koneksi jaringan di mana para pemakai dapat melakukan akses Internet dengan cara nirkabel (wireless) tanpa tergantung kepada jaringan fisik. Jangkauan hotspot  dapat dimaksimalkan dengan memanfaatkan antena dengan desain khusus sehingga cakupan (coverage) pancaran sinyal lebih luas. Proses pembuatan desain antena dengan media seng yang diaplikasikan untuk hotspot Wi-Fi pada outdoor diawali dengan perhitungan link budget, antara lain gain dan beamwidth dari antena. Proses pengukuran sinyal diukur dengan menggunakan bantuan software NetStumbler.

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