naa a22 4500 510799167 CHVBK 20180411083347.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11277-013-1057-4 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1057-4 Packet Delay in UAV Wireless Networks Under Non-saturated Traffic and Channel Fading Conditions [Elektronische Daten] [Jun Li, Yifeng Zhou, Louise Lamont, Mylène Toulgoat, Camille Rabbath] In this paper, we conduct a statistical analysis for the packet delay in a wireless network of unmanned aerial vehicles (UAVs) under non-saturated traffic and channel fading conditions. Each UAV runs the distributed coordination function of IEEE 802.11 at the medium access control layer, and all UAVs are one-hop neighbors. A pair of UAVs can communicate over the lossy wireless channel of a fixed data rate. A non-saturated traffic condition is used. By modeling each node UAV as a standard queueing system (i.e., $$M/M/1$$ or $$M/G/1$$ queue), we derive the mean packet delay under the non-saturated traffic condition. Numerical and simulation results show that the mean packet delay derived based on $$M/M/1$$ queue is accurate for UAV wireless networks under the non-saturated traffic condition and with an independent packet error rate. It is observed that the mean packet delay increases with either the number of UAVs in the network or the packet generation rate. More important, existing results in the literature, based on the saturated traffic condition (i.e., packets are always supplied for transmission), tend to overestimate by a large amount the mean packet delay for networks with non-saturated traffic. In the second part of this paper, we apply simulation data to analysis of the probability distribution function of the packet delay when the packet error rate equals zero. Using a distribution fitting tool, we observe that the packet delay can be well approximated by the sum of a deterministic delay, which corresponds to the time period during which the UAV senses the medium and is able to perform a successful transmission, and a random delay, which follows a Gamma distribution function. Her Majesty the Queen in Right of Canada, 2013 Networks of unmanned aerial vehicles nationallicence Medium access control (MAC) nationallicence IEEE 802.11 distributed coordination function (DCF) nationallicence Queueing modeling and performance evaluation nationallicence Packet delay nationallicence Non-saturated traffic models nationallicence Rician fading channel nationallicence Li Jun Communications Research Centre Canada, 3701 Carling Ave, K2H 8S2, Ottawa, ON, Canada aut Zhou Yifeng Communications Research Centre Canada, 3701 Carling Ave, K2H 8S2, Ottawa, ON, Canada aut Lamont Louise Communications Research Centre Canada, 3701 Carling Ave, K2H 8S2, Ottawa, ON, Canada aut Toulgoat Mylène Communications Research Centre Canada, 3701 Carling Ave, K2H 8S2, Ottawa, ON, Canada aut Rabbath Camille DRDC-Valcartier, 2459 Boul. Pie XI North, G3J 1X5, Quebec, QC, Canada aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/2(2013-09-01), 1105-1123 0929-6212 72:2<1105 2013 72 11277 https://doi.org/10.1007/s11277-013-1057-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1057-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Jun Communications Research Centre Canada, 3701 Carling Ave, K2H 8S2, Ottawa, ON, Canada aut NATIONALLICENCE 700 1- Zhou Yifeng Communications Research Centre Canada, 3701 Carling Ave, K2H 8S2, Ottawa, ON, Canada aut NATIONALLICENCE 700 1- Lamont Louise Communications Research Centre Canada, 3701 Carling Ave, K2H 8S2, Ottawa, ON, Canada aut NATIONALLICENCE 700 1- Toulgoat Mylène Communications Research Centre Canada, 3701 Carling Ave, K2H 8S2, Ottawa, ON, Canada aut NATIONALLICENCE 700 1- Rabbath Camille DRDC-Valcartier, 2459 Boul. Pie XI North, G3J 1X5, Quebec, QC, Canada aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/2(2013-09-01), 1105-1123 0929-6212 72:2<1105 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer