naa a22 4500 510793142 CHVBK 20180411083326.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11277-012-0690-7 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0690-7 Ho-Van Khuong HoChiMinh City University of Technology, HoChiMinh City, Vietnam aut Performance Evaluation of Underlay Cognitive Multi-hop Networks Over Nakagami- m Fading Channels [Elektronische Daten] [Khuong Ho-Van] We derive a closed-form bit error rate (BER) formula for underlay cognitive N-hop networks operated over Nakagami-m fading channels where N is the arbitrary integer. This formula is corroborated by Monte Carlo simulations and useful for evaluating the network performance under different parameters such as modulation level, path-loss, maximum transmit power, tolerable interference power level, fading model, and the number of hops. Numerical results illustrate that underlay cognitive multi-hop networks suffer a high error floor and the BER performance not only depends on the number of hops but also the network topology. For the linear network model, the higher the number of hops, the better the network performance. Springer Science+Business Media, LLC., 2012 Decode-and-forward nationallicence Cognitive radio nationallicence Underlay nationallicence Multi-hop transmission nationallicence Nakagami- m fading channels nationallicence Wireless Personal Communications Springer US; http://www.springer-ny.com 70/1(2013-05-01), 227-238 0929-6212 70:1<227 2013 70 11277 https://doi.org/10.1007/s11277-012-0690-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0690-7 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Ho-Van Khuong HoChiMinh City University of Technology, HoChiMinh City, Vietnam aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 70/1(2013-05-01), 227-238 0929-6212 70:1<227 2013 70 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer