2 papers
cs.IT2025
Zigzag Codes Revisited: From Optimal Rebuilding to Small Skip Cost and Small Fields
Wenqin Zhang, Han Mao Kiah, Son Hoang Dau
We revisit zigzag array codes, a family of MDS codes known for achieving optimal access and optimal rebuilding ratio in single-node repair. In this work, we endow zigzag codes with…
math.CO2024
Pairs in Nested Steiner Quadruple Systems
Yeow Meng Chee, Son Hoang Dau, Tuvi Etzion +2
Motivated by a repair problem for fractional repetition codes in distributed storage, each block of any Steiner quadruple system (SQS) of order is partitioned into two pairs. E…