DyCaPPON: Dynamic circuit and packet passive optical network

Xing Wei, Frank Aurzada, Michael P. McGarry, Martin Reisslein

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Dynamic circuits are well suited for applications that require predictable service with a constant bit rate for a prescribed period of time, such as cloud computing and e-science applications. Past research on upstream transmission in passive optical networks (PONs) has mainly considered packet-switched traffic and has focused on optimizing packet-level performance metrics, such as reducing mean delay. This study proposes and evaluates a dynamic circuit and packet PON (DyCaPPON) that provides dynamic circuits along with packet-switched service. DyCaPPON provides (i) flexible packet-switched service through dynamic bandwidth allocation in periodic polling cycles, and (ii) consistent circuit service by allocating each active circuit a fixed-duration upstream transmission window during each fixed-duration polling cycle. We analyze circuit-level performance metrics, including the blocking probability of dynamic circuit requests in DyCaPPON through a stochastic knapsack-based analysis. Through this analysis we also determine the bandwidth occupied by admitted circuits. The remaining bandwidth is available for packet traffic and we conduct an approximate analysis of the resulting mean delay of packet traffic. Through extensive numerical evaluations and verifying simulations we demonstrate the circuit blocking and packet delay trade-offs in DyCaPPON.

Original languageEnglish (US)
Pages (from-to)135-147
Number of pages13
JournalOptical Switching and Networking
StatePublished - Jul 2014


  • Dynamic circuit switching
  • Ethernet passive optical network
  • Grant scheduling
  • Grant sizing
  • Packet delay
  • Stochastic knapsack

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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