作者: Joao A. Dias , Joel J. P. C. Rodrigues , Lei Shu , Sana Ullah
DOI: 10.1109/ITST.2013.6685534
关键词: Network performance 、 Network layer 、 Computer science 、 Computer network 、 Routing protocol 、 Task (project management) 、 Mobile radio 、 Distributed computing 、 Reputation system 、 Reputation 、 Network packet
摘要: Vehicular Delay-Tolerant Networks (VDTNs) were proposed as a solution to overcome some issues found in other vehicular technologies. VDTNs assume the bundle layer placement under network layer. This architecture can be applied sparse regions characterized by connectivity, long propagation delays, high error rates, and short contact durations. Although of major already solved several improvements achieved, still have that should overcome. One these is related with nodes cooperation share their own resources deliver packets from others. difficult task if selfish affect performance cooperative nodes. To detect, identify, avoid communications nodes, this paper proposes reputation system four different mechanisms studies impact on network. enforced two routing protocols (Spray-and-Wait GeoSpray). Across all experiments, it was shown punish aggressively contribute an increase overall number delivery messages decrease message average delay.