Crosstalk-Aware Channel Coding Schemes for Energy Efficient and Reliable NOC Interconnects

• Published in: IEEE transactions on very large scale integration (VLSI) systems Vol. 17; no. 11; pp. 1626 - 1639
• Main Authors: Ganguly, A., Pande, P.P., Belzer, B.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.11.2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Architecture; Backbone; Channel coding; Channels; Coding; Communication switching; Crosstalk; Crosstalk avoidance; Design engineering; Design. Technologies. Operation analysis. Testing; Electronics; Energy efficiency; error correction coding (ECC); Exact sciences and technology; Fabrics; Infrastructure; Integrated circuits; Intellectual property; multiple error correction; network on chip (NOC); Network-on-a-chip; Packet switching; reliability; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Spine; Telecommunication network reliability; Very large scale integration; Performance evaluation; Interconnection network; Crosstalk avoidance; Die; Crosstalk; Network architecture; System on a chip; error correction coding (ECC); multiple error correction; Switching; Power consumption; network on chip (NOC); Coding; Energy dissipation; Interconnection; Integrated circuit; Intellectual property; Error detection; Error correcting code; Error correction; Low-power electronics; Reliability
• ISSN: 1063-8210; 1557-9999
• DOI: 10.1109/TVLSI.2008.2005722

Network-on-chip (NOC) is emerging as a revolutionary methodology to integrate numerous intellectual property blocks in a single die. It is the packet switching-based communications backbone that interconnects the components on multicore system-on-chip (SoC). A major challenge that NOC design is expected to face is related to the intrinsic unreliability of the interconnect infrastructure under technology limitations. By incorporating error control coding schemes along the interconnects, NOC architectures are able to provide correct functionality in the presence of different sources of transient noise and yet have lower overall energy dissipation. In this paper, designs of novel joint crosstalk avoidance and triple-error-correction/quadruple-error-detection codes are proposed, and their performance is evaluated in different NOC fabrics. It is demonstrated that the proposed codes outperform other existing coding schemes in making NOC fabrics reliable and energy efficient, with lower latency.