Outstanding research problems in NoC design: System, microarchitecture, and circuit perspectives

Radu Marculescu, Umit Y. Ogras, Li Shiuan Peh, Natalie Enright Jerger, Yatin Hoskote

Research output: Contribution to journalArticlepeer-review

599 Scopus citations


To alleviate the complex communication problems that arise as the number of on-chip components increases, network-on-chip (NoC) architectures have been recently proposed to replace global interconnects. In this paper, we first provide a general description of NoC architectures and applications. Then, we enumerate several related research problems organized under five main categories: Application characterization, communication paradigm, communication infrastructure, analysis, and solution evaluation. Motivation, problem description, proposed approaches, and open issues are discussed for each problem from system, microarchitecture, and circuit perspectives. Finally, we address the interactions among these research problems and put the NoC design process into perspective.

Original languageEnglish (US)
Pages (from-to)3-21
Number of pages19
JournalIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Issue number1
StatePublished - Jan 2009
Externally publishedYes


  • Energy and power consumption
  • Multiprocessor systems-on-chip (MPSoCs)
  • Networks-on-chip (NoCs)
  • On-chip communication

ASJC Scopus subject areas

  • Software
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering


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