MIMO PCB-integrated slot antenna for IEEE 802.11n WLAN access-point applications

2016 ◽  
Vol 58 (5) ◽  
pp. 1254-1256 ◽  
Author(s):  
Chun-Cheng Lin ◽  
Chih-Yu Huang
Keyword(s):  
Access Point ◽  
Slot Antenna ◽  
Ieee 802.11N

An IEEE 802.11n Based Multi-Channel MAC Protocol for Underground Metal Mine Wireless Network

2014 ◽  
Vol 571-572 ◽  
pp. 428-432
Author(s):  
Feng Jin ◽  
Xu Liu ◽  
Xiao Lv ◽  
Da Zhang
Keyword(s):  
Communication Networks ◽  
Mac Protocol ◽  
Access Point ◽  
Wireless Communication Networks ◽  
Ieee 802.11N ◽  
Metal Mine ◽  
Practical Performance ◽  
Communication Reliability ◽  
Channel Packet ◽  
Preliminary Application

At present, wireless communication networks obtain preliminary application in underground metal mines, but the problems of anti-interference ability and communication capability generally exist. With regard to this situation, this paper proposed an IEEE 802.11n based multi-channel MAC protocol (MC-MAC), which supports multi-channel dynamically switching by evaluating real time channel packet received rate. MC-MAC can improve wireless networks’ data throughput, anti-interference ability, and communication reliability. To evaluate the practical performance of MC-MAC, This paper designed and implemented an wireless access point based on IEEE 802.11n as testing platform, experimental results show that MC-MAC can provide 193Mbps physical links rate and improve network anti-interference ability effectively, it is suitable for underground metal mine applications.

scholarly journals ANALISIS TINGKAT KINERJA JARINGAN WIRELESS IEEE 802.11N MENGGUNAKAN MIKROTIK

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Dhiaul Qadri ◽  
Teuku Yuliar Arif ◽  
Afdhal Azmi
Keyword(s):  
Packet Loss ◽  
Access Point ◽  
Data Rate ◽  
Ieee 802.11N

Jaringan wireless merupakan sekumpulan komputer yang saling terhubung antara satu komputer dengan komputer yang lain sehingga menjadi sebuah jaringan komputer. Jaringan ini menggunakan media udara/gelombang untuk mentransmisikan data. Pada suatu jaringan, kecepatan dipengaruhi oleh perangkat yang digunakan oleh user dan perangkat yang menjadi AP, jarak dan faktor ruangan. Pada penelitian ini mencoba melihat kinerja jaringan wireless IEEE 802.11n. Penelitian ini dilakukan halaman rumah dengan menggunakan 4 laptop, 3 sebagai client dan 1 laptop sebagai server dengan 1 router Mikrotik sebagai access point (AP). Pengujian ini dilakukan mencari nilai rata-rata Uplink dan Downlink dari Throughput, Jitter dan Packet Loss dengan pengujian dengan 4 pengujian dengan jarak berbeda-beda, yaitu 5 meter, 10 meter, 15 meter dan campuran menggunakan tool Jperf dengan paket UDP yang telah disesuaikan oleh IEEE 802.11N, waktu selama 50 detik dan bandwidth default. Dari hasil pengujian yang telah dilakukan client dengan jarak 5 meter dari AP memiliki throughput 1 Mbps, jitter 2.536 ms dan packet loss 0%, Sedangkan pada saat jarak 15 dan campuran packet loss mengalami kehilangan paket yang lebih besar yaitu pada data rate 150 mengalami 33.59% kehilangan data dan jarak campuran mengalami 30.56% kehilangan data, sehingga paket yang dikirim tidak sesuai dari data yang sebelumnya. Dari pengujian ini juga bisa dilihat juga perangkat dan ruangan yang memiliki hambatan sangat berpengaruh kualitas sinyal internet tersebut. Kata kunci: server, client, Throughput, AP, Bandwidth, Packet Loss, Jitter, UDP, Jaringan wireless, MikroTik dan Jperf.

COMPARATIVE CHARACTERISTICS OF WIRELESS SYSTEMS OF 802.11 STANDARDS FOR CAPACITY AND PERFORMANCE

2019 ◽  
Author(s):  
T.N. Narytnik ◽  
P. G. Akopyan ◽  
V.G. Saiko ◽  
V.I. Korsun ◽  
S.V. Sarapulov
Keyword(s):  
Mobile Networks ◽  
New Technologies ◽  
Access Point ◽  
Packet Transmission ◽  
Battery Life ◽  
Data Traffic ◽  
Ieee 802.11N ◽  
Total Data ◽  
And Performance ◽  
Network Simulation Model

At present, there is an exponential increase in the total data traffic of mobile networks. Implementation of new technologies, implementation of innovative infrastructure solutions, as well as optimization and increase of efficiency of use of existing networks are necessary to prevent failures and congestion. The most promising way, from a mobile operator's perspective, is to develop a macro level and use Wi-Fi to offload LTE-A (Wi-Fi Offloading). However, the efficiency of the conflict resolution algorithms used in modern Wi-Fi systems is significantly reduced with increasing number of subscribers. Features of the family of the latest Wi-Fi standards (IEEE 802.11n, IEEE 802.11ac, IEEE 802.11ax), which are intended for unloading mobile networks and quality provision of Internet of Things, are considered in the article. A review and comparison of the protocols of the latest IEEE 802.11 standards showed that, technically, Wi-Fi 6 has a data rate that is 37% faster than 802.11ac, but more importantly, the updated specification offers 4 times more bandwidth per user in crowded places, as well as higher energy efficiency, which should increase the battery life of the devices. To achieve these improvements, 802.11ax has made many changes, including several multi-user technologies borrowed from the cellular industry, namely MU-MIMO and OFDMA technologies, which greatly increase bandwidth and productivity through more concurrent connections and more careful use of the spectrum. The results of simulation modeling of the delay in packet transmission, average access point bandwidth and data loss values ​​using different modes of collective access to the IEEE 802.11n network channels: distributed (DCF) and centralized (PCF) access coordination functions. OPNET Modeler, which is radio-oriented and allows you to build models without programming, has been selected to develop the network simulation model.

scholarly journals Reconfigurable Notch Band Monopole Slot Antenna for WLAN/IEEE-802.11n Applications

2017 ◽  
Vol 10 (6) ◽  
pp. 166-173 ◽  
Author(s):  
Kosuru Murthy ◽  
◽  
Kodidasu Umakantham ◽  
Korlapati Murthy ◽  
Boddapati Madhav ◽  
...  
Keyword(s):  
Slot Antenna ◽  
Ieee 802.11N ◽  
Notch Band

scholarly journals Investigation and Evaluation of IEEE 802.11n WLANs Link Features Performance Under Single Host and Concurrent Communication

2021 ◽  
Vol 11 (1) ◽  
pp. 1-13
Author(s):  
Sumon Kumar Debnath ◽  
Prodip Kumar Sarker ◽  
Md. Manowarul Islam ◽  
Ileas Pramanik
Keyword(s):  
High Performance ◽  
Single Channel ◽  
Access Point ◽  
Local Area ◽  
Practical Implementation ◽  
Network Simulator ◽  
Data Traffic ◽  
Efficient Design ◽  
Ieee 802.11N ◽  
Simulation Tools

For an efficient design of wireless local-area networks (WLANs), the simulation tools are important to accurately estimate the IEEE 802.11n/ac link features for WLANs. However, this true simulation of network behavior is critical in designing high-performance WLANs. Through testing, analysis, and modeling of the proposed scheme repetitively, the design of the WLAN can be enhanced with a small budget before making its practical implementation. Many network simulation tools have been established to give solutions for this request and ns-3 is the most widely used tools among them by the research industry as an open-source network simulator. In this paper, we examine the various link features of the 802.11n WLANs under several conditions. We investigate the effects of 802.11n WLAN modulation and coding schemes (MCSs), 20MHz single channel or 40 MHz bonded channel, guard intervals (GI), frame aggregation, data encoding, number of antennas and their data rate, and link distance features of 802.11n WLAN in ns-3 when only a unique host connects with the access point (AP) and generates data traffic. Besides, the performance for an enterprise scenario proposed by the IEEE 802.11ax study group is evaluated when several hosts are simultaneously creating traffic with their associated APs. The results demonstrate that ns-3 support most of the link features of the 802.11n protocol with significant accuracy.

Research of Mining High Power 802.11n Access Point

2014 ◽  
Vol 571-572 ◽  
pp. 447-452 ◽  
Author(s):  
Xiao Lv ◽  
Da Zhang ◽  
Feng Jin ◽  
Xu Liu ◽  
Xi Han
Keyword(s):  
High Power ◽  
Communication Systems ◽  
Access Point ◽  
Test Results ◽  
Ieee 802.11N ◽  
Communication Distance

This paper designs and implements an IEEE 802.11n based mining high power access point to improve the disadvantages of low throughput, low communication distance which are met in current mining communication systems. By adding high power design to transmitting and receiving path, this design can get over more than 190Mbps throughput in lab testing, and can achieve more than 2km outdoor communication distance. Test results show that the mining high power access point is more suitable for mining application.

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