naa a22 4500 510797652 CHVBK 20180411083342.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11277-013-1038-7 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1038-7 Radio Propagation Studies at 5.8GHz for Point-to-Multipoint Applications Incorporating Vegetation Effect [Elektronische Daten] [Noor Rahman, Kim Tan, Abdusameas Omer, Tharek Rahman, Ahmed Reza] This paper presents an empirical study for fixed wireless links based on IEEE802.16 standard in a vegetated residential environment. Field measurements were conducted for suburban microcell channel by utilizing 5.8GHz of Unlicensed National Information Infrastructure. A set of comprehensive measurements that covered 10 point-to-multipoint links surrounding Universiti Teknologi Malaysia were selected to investigate the impact of vegetation on propagating radio waves. This suburban location was characterized by trees and terrain blockage. The aim of this study is to develop a path loss model that incorporates vegetation effect. Received signal strength and factors influencing the performance of the signal strength are highlighted here. The accuracy of the proposed prediction model is analyzed, which quantifies that path loss is proportional to the distance of the tree to the receiver, size, density, and number of trees within the vicinity of transmitting and receiving antennas. Observation found that external effect, such as wind significantly affect the signal performance too. The terrain was another factor, which needs to consider into account before deployment of wireless links. Depending on the dynamic characteristics of the presence of trees between the communication links, the measurement results show that the path loss is increased from 5.69 to 33.67dB. The results obtained are compared to Free Space Loss model, Weissberger model, and ITU-R model. Those established models are used to validate the applicability results obtained by means of root mean square (RMS) error. In view of this research work, a good agreement of the proposed excess loss model achieves the smallest RMS error for links obstructed by single tree and the row of trees. Springer Science+Business Media New York, 2013 Radio propagation nationallicence Path loss model nationallicence Point-to-multipoint nationallicence Vegetation nationallicence Rahman Noor Wireless Communication Centre, Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Malaysia aut Tan Kim Faculty of Engineering and Technology, Multimedia University, 75450, Ayer Keroh, Melaka, Malaysia aut Omer Abdusameas Wireless Communication Centre, Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Malaysia aut Rahman Tharek Wireless Communication Centre, Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Malaysia aut Reza Ahmed Faculty of Engineering, Department of Electrical Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/1(2013-09-01), 709-728 0929-6212 72:1<709 2013 72 11277 https://doi.org/10.1007/s11277-013-1038-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1038-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rahman Noor Wireless Communication Centre, Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Malaysia aut NATIONALLICENCE 700 1- Tan Kim Faculty of Engineering and Technology, Multimedia University, 75450, Ayer Keroh, Melaka, Malaysia aut NATIONALLICENCE 700 1- Omer Abdusameas Wireless Communication Centre, Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Malaysia aut NATIONALLICENCE 700 1- Rahman Tharek Wireless Communication Centre, Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), 81310, Skudai, Malaysia aut NATIONALLICENCE 700 1- Reza Ahmed Faculty of Engineering, Department of Electrical Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/1(2013-09-01), 709-728 0929-6212 72:1<709 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer