Throughput analysis by simulation considering route forms in multi-hop networks with node-skipping

In wireless ad-hoc networks, multi-hop networks which relay packets over several relay nodes are employed. It enables us to telecommunicate and construct quick and easy networking without cabling. However, the throughput deteriorates with an increase of the relay nodes, because delay occurs at each relay node. To relieve this problem, a multi-hop network with node-skipping was proposed. In the practical environment, radio waves fluctuate by fading. The node-skipping method uses this fluctuation. When the link has a temporarily improved SNR, not only the adjacent node but also the node following the adjacent node can receive packets. It enables us to improve the packet success rate and the throughput. In multi-hop networks, the route is constructed by a routing protocol. The distribution and number of nodes are different in each situation. Even if the area where the relay nodes distributed is the same, the multi-hop route is determined stochastically. If the constructed route is not linear, the possibility that node-skipping occurs increases. To analyze practically, we investigate characteristic of constructed routes in multi-hop networks by simulation. By using the characteristic, we analyze the throughput considering the route forms. We confirm that the node-skipping method improves the throughput considering the route forms. As a result, the throughput with node-skipping is 1.7 times as high as that without node-skipping. From this analysis, we show that the node-skipping method is a valid method in practical environment.