Fundamental Limits of Caching in Wireless D2D Networks

• Published in: IEEE transactions on information theory Vol. 62; no. 2; pp. 849 - 869
• Main Authors: Mingyue Ji, Caire, Giuseppe, Molisch, Andreas F.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.02.2016; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Base stations; Cache; Caching; Caching Networks; Coding theory; D2D Communication; Encoding; Gain; Information storage; Information theory; Libraries; Messages; Mobile communications networks; Multicast communication; Multicasting; Network Coding; Networks; Reuse; Strategy; Streaming media; Throughput; Throughput Scaling Laws; Wireless communication; network coding; D2D communication; throughput scaling laws; caching networks
• ISSN: 0018-9448; 1557-9654
• DOI: 10.1109/TIT.2015.2504556

We consider a wireless device-to-device (D2D) network where communication is restricted to be single-hop. Users make arbitrary requests from a finite library of files and have pre-cached information on their devices, subject to a per-node storage capacity constraint. A similar problem has already be...