Bidyut Sen is a Principal Engineer with Unified Compute Server (UCS) Group at Cisco Systems inc. Bidyut has many years of experience in the computer industry and worked in several companies including Sun Microsystems, Fujitsu and LSILogic. He has a Ph.D.in Physics from SUNY at Stonybrook. Bidyut has several publications, presentations and patents.
While a channel may pass a test, the remaining margin and thus its resilience against geometry or material variation in production may not be observable. However, such variations are critical because they may impede the performance or cause high volume manufacturing (HVM) products to fail. This coalition of authors has developed and demonstrated a polynomial chaos expansion (PCE) flow to analyze a full-featured 100GBASE-KR4 link starting from geometry specification to Channel Operating Margin (COM) margin at the receiver. Read on to see their award winning paper on the subject.