Evaluation of Different DTN Routing Protocols in an Opportunistic Network Considering Many-to-One Communication Scenario
Evjola Spaho, Kevin Bylykbashi, Leonard Barolli, Vladi Koliçi, Algenti Lala · 2016
In this paper, we evaluate and compare the performanceof four different routing protocols in a many-to-onecommunication opportunistic network. Seven groups with threestationary sensor nodes sense the temperature, humidity andwind speed and send these data to a stationary destination nodethat collect them for statistical and data analysis purposes. Vehicles moving in Tirana city roads during the opportunisticcontacts will exchange the sensed data to destination node. The simulations are conducted with the Opportunistic NetworkEnvironment (ONE) simulator. For the simulations weconsidered two different scenarios where the distance of thesource nodes from the destination is short and long. Theperformance is analyzed using delivery probability, overheadratio, average latency, average number of hops and averagebuffer time metrics. For both scenarios the effect of increasingttl is evaluated. The simulation results show that the increaseof ttl from 15 min to 60 min slightly effects the performance ofall protocols. By increasing the distance between source nodesand destination node, delivery probability is decreased almost10% for all protocols, the overhead for sprayandwait does notchange, but for other protocols is slightly increased and theaverage number of hops and average latency is increased.