A Survey on Parameters Affecting MANET Performance

Abstract

A mobile ad hoc network (MANET) is an infrastructure-less network where mobile nodes can share information through wireless links without dedicated hardware that handles the network routing. MANETs’ nodes create on-the-fly connections with each other to share information, and they frequently join and leave MANET during run time. Therefore, flexibility in MANETs is needed to be able to handle variations in the number of existing network nodes. An effective routing protocol should be used to be able to route data packets within this dynamic network. Lacking centralized infrastructure in MANETs makes it harder to secure communication between network nodes, and this lack of infrastructure makes network nodes vulnerable to harmful attacks. Testbeds might be used to test MANETs under specific conditions, but researchers prefer to use simulators to obtain more flexibility and less cost during MANETs’ environment setup and testing. A MANET’s environment is dependent on the required scenario, and an appropriate choice of the used simulator that fulfills the researcher’s needs is very important. Furthermore, researchers need to define the simulation parameters and the other parameters required by the used routing protocol. In addition, if the MANET’s environment handles some conditions where malicious nodes perform network attacks, the parameters affecting the MANET from the attack perspective need to be understood. This paper collects environmental parameters that might be needed to be able to set up the required environment. To be able to evaluate the network’s performance under attack, different environmental parameters that evaluate the overall performance are also collected. A survey of the literature contribution is performed based on 50 recent papers. Comparison tables and statistical charts are created to show the literature contribution and the used parameters within the scope of the collected papers of our survey. Results show that the NS-2 simulator is the most popular simulator used in MANETs.

Estimation of the Achievable Performance of Mobile Ad Hoc Networks with Optimal Link State Routing

“…The most popular simulation environments-Simulators of Wireless MANETs-include network simulators Network Simulator 2 (NS-2) and Network Simulator 3 (NS-3) [23], the simulation system GloMoSim (Global Mobile Information System Simulator) [24], the system of the simulation modeling and analysis of communication networks (OPNET Modeler) [25], and a number of others. A comparison of commonly used simulators in an MANET is given in [26]. These tools allow you to specify parameters and technologies at the physical, link, network, and transport layers, as well as the type of traffic at the application layer; select specific node mobility models; and specify various network topology configurations and basic node usage scenarios, including those which stipulate the interoperability of the whole network [27].…”

“…In particular, it is of interest to determine the number of nodes or the possible coverage area that can provide, for example, an acceptable packet delay. This problem can be solved by evaluating the "internal" network efficiency metrics proposed in [1,26]. This paper presents analytical expressions for calculating the maximum achievable values of quality metrics for different scenarios of packet transmission in the network using selected routing and Resource Reservation Protocols, assuming no packet collisions in nodes.…”

Multimodel Collaboration to Combat Malicious Domain Fluxing

“…A DGA uses random seeds to generate a large number of different domain names, but bot masters usually only register one or some domains in the candidate list and use registered domains to distribute their command. It would be increasingly difficult to block malicious domain names generated by DGAs only using blacklists and reverse engineering [15][16][17][18]. Fortunately, many researchers have applied learning techniques to detect malicious domains.…”