Enhancements in data-recovery and re-transmit mechanisms of transmission control protocol enabled medical devices
Security Research Institute
In a Healthcare Information Systems (HIS) environment, network performance is one of the most important entities in the long-distance networks. Among TCP enabled medical devices, the TCP congestion control mechanisms play an important role in the HIS networks. Most of the current TCP congestion control mechanisms, which are also known as TCP variants, detect congestion and slow down the packets transmission to avoid further congestion in the network. This could have adverse effect in mission critical connections. In this paper, three classes of TCP variants are discussed, and performance of six famous TCP variants; FACK  , HishSpeed , Linux , Vegas , Full TCP and NewReno  are analyzed by using Network Simulator-2. Simulation results proved that better average throughput is achieved by using FACK TCP and packets dropped percentage is 0% using Vegas TCP.
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