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Multi-Access Coded Caching Scheme With Linear Sub-Packetization Using PDAs.
- Source :
-
IEEE Transactions on Communications . Dec2021, Vol. 69 Issue 12, p7974-7985. 12p. - Publication Year :
- 2021
-
Abstract
- We consider multi-access coded caching problem introduced by Hachem et.al., where each user has access to $L$ neighboring caches in a cyclic wrap-around fashion. We focus on the deterministic schemes for a specific class of multi-access coded caching problem based on the concept of Placement Delivery Array (PDA). We construct new PDAs which specify the delivery scheme for the specific class of multi-access coded caching problem discussed in this paper. For the proposed scheme, the coding gain is larger than that of the state-of-the-art for some regimes while the sub-packetization level varies only linearly with the number of users. Hence, we achieve a lower transmission rate with the least sub-packetization level compared to the existing schemes. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POCKET computers
*STREAMING media
Subjects
Details
- Language :
- English
- ISSN :
- 00906778
- Volume :
- 69
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Communications
- Publication Type :
- Academic Journal
- Accession number :
- 154240067
- Full Text :
- https://doi.org/10.1109/TCOMM.2021.3116229