题目：Coded caching schemes under coded placement

报告人：程民权教授 (广西师范大学)

时间：2020/11/29 10:00-11:00

线上讲座，腾讯会议 ID：169 990 689

报告摘要：In caching system, it is desirable to design a coded caching scheme with small transmission rate and low subpacketization, in order to improve efficiency of transmission in the peak traffic time and to decrease the realizing complexity. Placement delivery arrays (PDA in short) can be used to generate coded caching scheme. In this talk, we first introduce several results on PDAs and some previously known results with low subpacketization. However we find out that some schemes generated by PDAs do not fully use the users’caching contents to create multicasting opportunities. Then we proposed a new scheme via PDA which can overcome this drawback in this talk. Finally, we propose a new characterization of coded caching scheme. This new characterization can be viewed as a generalization of PDA.

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邀请人：汪馨