A Self-adaptive Reliable Packet Transmission Scheme for Wireless Mesh Networks

摘要

Packets transmission in Wireless Mesh Networks (WMNs) is not that reliable due to the inherited weak points of wireless channels. In this paper we proposed a new packets transmission scheme which is called - Self-adaptive Reliable Transmission scheme with Redundancy and Multipath (S-RTRM). S-RTRM is improved on the foundation of RTRM which uses XOR operation as its encoding method and rank the redundancy strategy in 5 standard scales. Different from RTRM, S-RTRM uses new path metric and can monitor each path's performance in real-time. Then it can choose a proper redundancy strategy dynamicly for each path. Any path will undertake its own redundant packets. Compared with RTRM, S-RTRM is effectual in a much larger data rate area and doing its best on weighing the reliability against good put.