Clark School Home UMD

ISR Events Calendar

Event Information

Communication Control and Signal Processing Seminar: Jie Li, "Systematic Constructions of MDS Codes"
Thursday, January 31, 2019
5:00 p.m.-6:30 p.m.
2168 A.V. Williams Bldg.
For More Information:
Ajaykrishnan Nageswaran
301 405 3661

Communication, Control and Signal Processing Seminar

Systematic Constructions of MDS Codes with Small Sub-packetization Level and Near Optimal Repair Bandwidth

Jie Li
Southeast Jiaotong University

In the literature, all the known high-rate MDS codes with the optimal repair bandwidth possess a significantly large sub-packetization level, which may prevent the codes to be implemented in practical systems. To build MDS codes with small sub-packetization level, existing results and the theoretical bounds imply that one may sacrifice the optimality of the repair bandwidth.

In this talk, we present a powerful transformation that can greatly reduce the sub-packetization level of the any MDS codes with respect to the same code length $n$, then followed by three applications of the transformation, where three high-rate MDS codes that have both small sub-packetization level and near optimal repair bandwidth can be obtained, however, over a sufficiently large finite field. To further reduce the field size, we also propose two explicit $(n=sn',k)$ MDS codes that have both small sub-packetization level and near optimal repair bandwidth, where the size $q$ of the finite fields required are respectively reduced to $q>n$ and $q>s(n-k)$.

This Event is For: Graduate • Undergraduate • Faculty • Post-Docs

Browse Events By Calendar

Calendar Home

« Previous Month    Next Month »

August 2019
1 2 3 w
4 5 6 7 8 9 10 w
11 12 13 14 15 16 17 w
18 19 20 21 22 23 24 w
25 26 27 28 29 30 31 w

Search Events

ISR lecture and seminar series

Distinguished Lecturer Series
Intelligent Automation Inc. Colloquia Series
Microsystems Seminar Series
Lockheed Martin Robotics Seminar Series
Advanced Networks Colloquia Series
Model-Based Systems Engineering Colloquia Series

Submit an event to the ISR calendar Click here

News links

Current news
Search news
News archives