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

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3 Author(s)
Ganguly, A. ; Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA ; Pande, P.P. ; Belzer, B.

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.

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Very Large Scale Integration (VLSI) Systems, IEEE Transactions on  (Volume:17 ,  Issue: 11 )