Technology Category
Planning, Routing, and Scheduling: Optimization of Spatio-temporal SystemsMachine Learning: Hardware-aware MLMultiagent Systems: Other Foundations of Multi Agent Systems
On the Achievable Performance in the presence of Multiple Path Interference for Intra Data Center applications
🤖 AI Summary
Multi-path interference (MPI) severely degrades the bit-error-rate (BER) performance of PAM4 signaling in high-speed data center interconnects.
Method: This paper proposes the first theoretical BER model for PAM4 systems under ideal MPI estimation and compensation, establishing a statistical characterization of MPI channels and deriving a closed-form BER expression.
Contribution/Results: The model quantitatively reveals how key MPI parameters—particularly MPI amplitude and relative delay—fundamentally constrain achievable system performance. It provides a rigorous, quantitative foundation for high-speed link design, equalization strategy optimization, and fault-tolerance budget allocation. By enabling precise analytical BER evaluation under realistic multi-path conditions, the model significantly improves both the accuracy of performance assessment and the practical engineering guidance for PAM4 deployment.
Technology Category
Application Category
📝 Abstract
An accurate analytical form of the achievable bit error rate in the presence of multipath interference (MPI) is proposed for PAM4 for the first time, taking into account an ideal MPI estimate and compensation.
Problem
Research questions and friction points this paper is trying to address.
Modeling achievable bit error rate with multipath interference
Analyzing PAM4 performance in data center applications
Incorporating ideal MPI estimation and compensation methods
Innovation
Methods, ideas, or system contributions that make the work stand out.
Analytical model for PAM4 bit error rate
Accounts for multipath interference in data centers
Uses ideal MPI estimation and compensation techniques
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