A Robust Wireless Multicast Protocol
The RoboCup Unicast Protocol and the RoboCup Multicast Protocol are two Real-time Application layer protocols used by Ohio University at the RoboCup International soccer competition played between autonomous mobile Robots. The RoboCup Unicast Protocol was used to transmit strategic information from the Base Station to each Robot individually over a designated wireless medium at regular intervals. It was replaced the following year by the RoboCup Multicast Protocol, which transmitted the same information to a single multicast group address, and thus reduced the total wireless network overhead. Both protocols worked well in the lab but failed in competition. This thesis delves into the reasons for the unexpected degradation in performance of both of the protocols in competition and describes a new Robust Wireless Multicast Protocol (RWMP) to overcome these problems. The RWMP protocol reduces the network overhead when compared to the RoboCup Unicast Protocol and also ensures reliability of transmission, unlike the RoboCup Multicast Protocol. The performance of the Robust Wireless Multicast Protocol, compared to the other two protocols, is validated by conducting a detailed experimental analysis of the three protocols under various wireless network loads and comparing the results in terms of total losses observed and time taken for transmission.
School Location:USA - Ohio
Source Type:Master's Thesis
Keywords:wireless interference robust multicast robocup
Date of Publication:01/01/2005