Two-hop ACK Forward Algorithm with Alternative Copies in DTN

Abstract

The Delay/Disruption-Tolerant Network (DTN) was short of effective methods to avoid routing hole region when encountered it. Direct at such two problems, a two-hop ACK forward algorithm with alternative copies was presented in this paper. According to simulation results, the performance of this algorithm was superior to comparing algorithms such as the Spray and Wait, etc. in terms of the delivery ratio, the average delay and the network overhead; moreover, this algorithm had a strong applicability in vehicle ad hoc networks (VANET).