An Experimental Comparison of Delivery Mechanisms in a Linear Topology
Minseok Oh · 한국정보기술학회논문지 · 2011
In this paper, we compare and analyze the performances of two mesh routing protocols (BATMAN-ADV and FLAME) and a WDS implementation of the IEEE 802.11, all of which run on Layer 2 of the OSI reference model. Sometimes the mesh network may simply form a linear topology to provide a service coverage to a line-shaped area. A linear topology can be built without any routing protocol involved using WDS. The first two routing protocols are a few protocols available in software package incorporated into the OpenWrt OS for embedded systems. Our experiments involves the throughput and delay performance measured on a linear mesh network over varying number of hops between two end nodes. We have used 5.8㎓ channel bands to avoid any interference with existing 802.11g radios. The results show that BATMAN-ADV performs best in throughput and WDS best in delay. The higher throughput of BATMAN-ADV is due to the elaborateness of the routing mechanism and the up-to-date release of BATMAN-ADV over FLAME. The lower delay of WDS is attributed to the structural efficiency of the WDS delivery mechanism.