Energy-Efficiency Gains of Caching for Interference Channels
Information Theory
2019-01-08 v1 math.IT
Abstract
This paper initiates the study of energy-efficiency gains provided by caching. We focus on the cache-aided Gaussian interference channel in the low-SNR regime. We propose a strategy that creates content overlaps at the transmitter caches to allow for co-operation between the transmitters. This co-operation yields a beamforming gain, which has to be traded off against a multicasting gain. We evaluate the performance of this strategy and show its approximate optimality in both the single-receiver case and the single-transmitter case.
Keywords
Cite
@article{arxiv.1808.00653,
title = {Energy-Efficiency Gains of Caching for Interference Channels},
author = {Jad Hachem and Urs Niesen and Suhas Diggavi},
journal= {arXiv preprint arXiv:1808.00653},
year = {2019}
}