Error differentiation with measurements based on wave patterns

  • Authors:
  • Chi Zhang;Vassilis Tsaoussidis

  • Affiliations:
  • School of Computer Science, Florida International University, Miami, FL 33199, USA;Department of Electrical and Computer Engineering, Demokritos University, Xanthi 67100, Greece

  • Venue:
  • Computer Communications
  • Year:
  • 2004

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Abstract

We investigate the efficiency and fairness potential of an error differentiation mechanism with measurements based on wave patterns. Our work is focused on a receiver-oriented protocol, TCP-Real that allows for measurement-based congestion detection and error recovery instead of a 'blind' increase/decrease window adjustment. We conduct a comparative evaluation of congestion control mechanisms of standard TCP, TCP-Real, and TCP-friendly protocols in multiplexed wired/wireless networks for both delay-tolerant and delay-sensitive applications. We show that the receiver-oriented communication of TCP-Real (i) diminishes the impact of reverse path asymmetry on the transmission rate, (ii) allows for error recovery tactics that are responsive to the nature of the error detected (i.e. congestion versus bit corruption), and (iii) dictates transmission rate adjustments that conform to the level of present contention. As a direct impact of this design, we realize the inherent properties of our protocol to produce comprehensive dynamics in heterogeneous environments, in contrast to the occasionally limited efficiency of standard TCP and the application-specific design of TCP-friendly protocols.