Open AccessMEASUREMENTSBASEDEVALUATION OF PATHLOSSEXPONENTS IN URBAN OUTDOORENVIRONMENTS
Author(s) -
Akohoule Alex,
CÃ ́te dIvoireEcoleDoctorale Polytechnique,
Bamba Aliou,
Kamagate Aladji,
Adama Konaté,
Oussama Tabbabi,
Olivier Asseu,
Abidjan Ecole Superieure Africaine des TICs
Publication year - 2021
Publication title -
international journal of advanced research
Language(s) - English
Resource type - Journals
ISSN - 2320-5407
DOI - 10.21474/ijar01/12556
Subject(s) - path loss , exponent , transmitter , bandwidth (computing) , radio propagation , log distance path loss model , wireless , channel (broadcasting) , wireless network , telecommunications , computer science , path (computing) , radio propagation model , delay spread , electronic engineering , fading , computer network , engineering , philosophy , linguistics
In wireless networks, propagation models are used to assess the received power signal and estimate the propagation channel. These models depend on the pathloss exponent (PLE) which is one of the main parameters to characterize the propagation environment. Indeed, in the wireless channel, the path loss exponent has a strong impact on the quality of the links and must therefore be estimated with precision for an efficient design and operation of the wireless network. This paper addresses the issue of path loss exponents estimation for mobile networks in four outdoor environments. This study is based on measurements carried out in four outdoor environments at the frequency of 2600 MHz within a bandwidth of 70 MHz. It evaluates the path loss exponent, and the impact of obstacles present in the environments. The parameters of the propagation model determined from the measurements show that the average power of the received signal decreases logarithmically with the distance. We obtained path loss exponents values of 4.8, 3.53, 3.6 and 3.99 for the site 1, site 2, site 3 and site 4, respectively. Clearly the density of the obstacles has an impact on the path loss exponents and our study shows that the received signal decrease faster as the transmitter and receiver separation in the dense environments.