Next-generation wireless technologies trends for ultra low energy

Evaluation of Voip Traffics Over Tikrit University Networks

“…Firstly, define problem and objective, presence many subscribers in WLAN' linked with ISP through hotspot or whatever WLAN' connecting techniques its need trusted level of performance indeed, especially many able to take vary amounts of users .Performance metric which are chosen to achieve the simulation over Internet Protocols, such as throughput and latency [12]. Then constructing the network model and set fixed parameters in simulation model, build references networks model designed with the second version Network Simulator software application, each of this models will be measured with increases during the simulation processes several factors such as excess numbers of nodes , increase in time and augmented with some randomize factors regarding each model [13,14]. Set of scripting lines which comprise the TCL file, these lines assigned with various parameters and those parameters give the models own flavor regarding the model creation to simulate with fact ,so these facts indeed will adopted as a parameters inside TCL file, as well as increase the number of nodes inside each models working to clarify the attitude of performance in terms of measuring how close to reality, so most researcher and studies introduced increased number of nodes gradually and analysis the outputs for highlighting the behavior of models in terms of metric performance measures such as delay ,throughput and packet loss also it should be noted that there are many metrics remaining which its various.…”