Impact of Node Density on the QoS Parameters of Routing Protocols in Opportunistic Networks for Smart Spaces

Table 1

Popular simulators used in opportunistic networks.

Simulator	Brief description
Adyton [51]	(i) C++-based event-driven simulator
	(ii) Supports numerous routing protocols and real-world contact traces
	(iii) Also provides several congestion control mechanisms and buffer management policies
MobEmu [52]	(i) Java-based free simulator
	(ii) Capable of executing a mobility model or replay a trace, while applying the desired routing or dissemination algorithm
Ns-3 [53]	(i) Python-based free simulator under the GNU GPLv2 license
	(ii) Also supports a real-time scheduler that facilitates several “simulation-in-the-loop” use cases for interacting with real systems
OMNet++ [54, 55]	(i) Free only for noncommercial organizations
	(ii) An extensible, component-based C++ simulation framework
	(iii) Runs basically on all platforms where a modern C++ compiler is available
ONE [56]	(i) Java-based free simulator
	(ii) Offers both keyboard and GUI interface for coding
	(iii) It allows researchers to design new protocols/architecture/framework in a very easy and defined way