Reliable transmission mechanism of Interest in Named Data Wireless Multi-hop Network

摘要

Named Data Network (NDN) has many advantages in building Wireless Multi-hop Network (WMN), but at present NDN is mainly used in Wired Network. Limited by the communication conditions of WMN, deploying NDN directly in a wireless multi-hop network is prone to high transmission delay of Interest packets, which cannot meet the communication requirements of Named Data Wireless Multi-hop Network (ND-WMN). For reducing the transmission delay of Interest packets and improving the transmission reliability in ND-WMN, this paper makes full use of the advantages of standard NDN's content store, and adds the confirmation response and timeout retransmission mechanism of Interest packets on the basis of not changing the standard NDN communication mechanism. The purpose is to achieve reliable and efficient transmission of Interest packets on wireless links with high packet loss rate. Simulation results show that this mechanism is significantly better than the standard NDN method in reducing the transmission delay and improving the transmission efficiency, therefore it is more suitable for ND-WMN.