Optimal Throughput-Outage Trade-off in Wireless One-Hop Caching Networks
arXiv:1302.2168
Abstract
We consider a wireless device-to-device (D2D) network where the nodes have cached information from a library of possible files. Inspired by the current trend in the standardization of the D2D mode for 4th generation wireless networks, we restrict to one-hop communication: each node place a request to a file in the library, and downloads from some other node which has the requested file in its cache through a direct communication link, without going through a base station. We describe the physical layer communication through a simple "protocol-model", based on interference avoidance (independent set scheduling). For this network we define the outage-throughput tradeoff problem and characterize the optimal scaling laws for various regimes where both the number of nodes and the files in the library grow to infinity.
5 pages, 3 figures, to appear in ISIT 2013
References in corpus (1)
Cited by in corpus (6)
- Fundamental Limits of Distributed Caching in D2D Wireless Networks
- Cooperative Caching and Transmission Design in Cluster-Centric Small Cell Networks
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- Base-Station Assisted Device-to-Device Communications for High-Throughput Wireless Video Networks
- Exploiting Mobility in Cache-Assisted D2D Networks: Performance Analysis and Optimization
- An Efficient Multiple-Groupcast Coded Multicasting Scheme for Finite Fractional Caching