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Placement Delivery Array Based on Concatenating Construction
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DOI：10.1109/LCOMM.2020.2981071.png)
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摘要
En 中文
In the coded caching problem apart from transmission rate, reducing the number of packets F ia also meaningful for practical implementation for coded caching scheme. Yan et al. reformulate the centralized coded caching schemes as designing a corresponding placement delivery array (PDA). In this letter, we propose two concatenating constructions by concatenating some known PDAs to obtain new PDAs therefore new code caching schemes with low sub-packetization level. Further, the comparison and analysis of parameters between our new schemes and known schemes is also performed.
Keyword:
Coded caching scheme
placement delivery array
concatenating construction
rate
number of packets
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4.4
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1.3W
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2.2W
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