Performance Measurements of IEEE 802.11a Wireless LANs in presence of Ultra Wideband Interference

Author(s):  
Jai C. Dialani ◽  
Anita Patel ◽  
R. P. Jindal
Author(s):  
Madan Kumar Lakshmanan ◽  
Homayoun Nikookar

Ultra wideband (UWB) wireless systems are highly susceptible to interference from other services. To reduce the effect of interference from co-existing sources such as the WLAN standard IEEE 802.11a on UWB Communication, the construction of a modified template waveform using multi-carrier sinusoids is proposed in Ohno and Ikegami (2003), Ohno et al. (2004), Ohno and Ikegami (2006), and Lakshmanan and Nikookar (2007). However, the work in Ohno and Ikegami (2003), Ohno et al. (2004), Ohno and Ikegami (2006), and Lakshmanan and Nikookar (2007) considers a free space propagation channel model with no treatment of the frequency dependence of the path loss. In this paper, we broaden the study by taking into consideration a frequency-dependent path loss environment. The novelty of the work is in the investigation of the effect of frequency dependency of the path loss on the performance of interference mitigation schemes.


2020 ◽  
Vol 55 (4) ◽  
Author(s):  
Amer Abbood Al-Behadili ◽  
Adham R. Azeez ◽  
Sadiq Ahmed ◽  
Zaid A. Abdul Hassain

This paper presents an ultra-wideband tapered slot patch antenna with bi-directional radiation, reconfigurable for dual band-notched capability and fed by coplanar waveguide. The proposed antenna showed excellent ultra-wideband characteristics with bandwidth of (1.9–12 GHz). In order to reduce the interference of the narrow band communications represented by Worldwide Interoperability for Microwave Access radiation in the range (3.4–3.9) GHz and standard IEEE 802.11a. application (from 5.1 GHz to 6.1 GHz), the antenna was accompanied with adjustable dual-stop band capability in these bands. The dual-band notches are achieved with aid of inserting a parasitic single split ring resonator and etching a single circular complementary circle split ring resonator. The proposed antenna used epoxy (FR4) substrate material with ????r= 4.4 and dimensions of .


2014 ◽  
Vol 20 (2) ◽  
pp. 426-429
Author(s):  
Toni Koskinen ◽  
Arto Toppinen ◽  
Matti Sipilä ◽  
Marek Milosz

2004 ◽  
Vol 40 (14) ◽  
pp. 915 ◽  
Author(s):  
P. Chatzimisios ◽  
A.C. Boucouvalas ◽  
V. Vitsas
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document