Main Reference Paper pCoCoA: A precise congestion control algorithm for CoAP – 2018 [Contiki-Cooja Simulator]
  • Bolettieri, Simone, Giacomo Tanganelli, Carlo Vallati, and Enzo Mingozzi

Author Name(s):
  • Bolettieri, Simone, Giacomo Tanganelli, Carlo Vallati, and Enzo Mingozzi

  • Ad Hoc Networks, 2018

Journal Name and year:
  • Ad Hoc Networks, 2018

  • 10.1016/j.adhoc.2018.06.015

DOI:
  • 10.1016/j.adhoc.2018.06.015

  • Internet of Things (IoT)

Research Area:
  • Internet of Things (IoT)

  • In this work, we present a critical analysis of CoCoA+ performance and highlight some of its shortcomings and pitfalls.

  • Two different scenarios are considered: one with an increasing traffic load due to an increasing number of CoAP requests, and another with an interfering traffic concurrently transmitted in the network characterized by a bursty pattern.

  • In the former scenario, we show how CoCoA+ may be characterized by many spurious retransmissions at some offered loads close to congestion

  • In the latter, we show instead how the weak estimator is not particularly effective in adapting to changing traffic loads

  • In order to overcome such limitations, a number of modifications to CoCoA+ are proposed.

  • The resulting solution, named precise Congestion Control (pCoCoA), is shown to reduce the number of retransmissions, while guaranteeing throughputs and delays comparable to those of CoAP and CoCoA+

Abstract:
  • In this work, we present a critical analysis of CoCoA+ performance and highlight some of its shortcomings and pitfalls.

  • Two different scenarios are considered: one with an increasing traffic load due to an increasing number of CoAP requests, and another with an interfering traffic concurrently transmitted in the network characterized by a bursty pattern.

  • In the former scenario, we show how CoCoA+ may be characterized by many spurious retransmissions at some offered loads close to congestion

  • In the latter, we show instead how the weak estimator is not particularly effective in adapting to changing traffic loads

  • In order to overcome such limitations, a number of modifications to CoCoA+ are proposed.

  • The resulting solution, named precise Congestion Control (pCoCoA), is shown to reduce the number of retransmissions, while guaranteeing throughputs and delays comparable to those of CoAP and CoCoA+

  • Operating System : Ubuntu 12.04 LTS 64bit

  • Simulator: Cooja, Instant Contiki-3.0 and Vmware Player 12.5.6

  • Language: C

Software Tools & Technologies
  • Operating System : Ubuntu 12.04 LTS 64bit

  • Simulator: Cooja, Instant Contiki-3.0 and Vmware Player 12.5.6

  • Language: C

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