论文标题
来自放置递送阵列的新编码的缓存方案
New coded caching schemes from placement delivery arrays
论文作者
论文摘要
由于需要低实施复杂性和传输效率，因此在实践中希望具有较低子包装和较小的传输速率的编码缓存方案。放置输送阵列（简称PDA）可用于生成编码的缓存方案。但是，许多已知的编码缓存方案具有较高的记忆比。在本文中，我们意识到，PDA生成的一些低子包装的方案并不能完全使用用户的缓存内容来创建多播的机会，从而提议克服这一缺点。作为一个应用程序，我们获得了两个具有低亚包装的新方案，与原始方案相比，它们在记忆比和传输速率上具有显着优势。
Coded caching schemes with low subpacketization and small transmission rate are desirable in practice due to the requirement of low implementation complexity and efficiency of the transmission. Placement delivery arrays (PDA in short) can be used to generate coded caching schemes. However, many known coded caching schemes have large memory ratios. In this paper, we realize that some schemes with low subpacketization generated by PDAs do not fully use the users' caching content to create multicasting opportunities and thus propose to overcome this drawback. As an application, we obtain two new schemes with low subpacketizations, which have significantly advantages on the memory ratio and transmission rate compared with the original scheme.
