Popularity-Aware Caching Increases the Capacity of Wireless Networks
| Autor: | Li Qiu, Guohong Cao |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
020203 distributed computing
Computer Networks and Communications business.industry Wireless ad hoc network Wireless network Computer science Distributed computing Node (networking) Mobile computing Throughput 020206 networking & telecommunications 02 engineering and technology Mobile ad hoc network Ad hoc wireless distribution service Popularity Base station Transmission (telecommunications) 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business Software Computer network |
| Zdroj: | INFOCOM |
| ISSN: | 2161-9875 1536-1233 |
| DOI: | 10.1109/tmc.2019.2892419 |
| Popis: | In wireless ad hoc networks, due to the interference between concurrent transmissions, the per-node capacity generally decreases with the increasing number of nodes in the network. Caching can help improve the network capacity, as it shortens the content transmission distance and reduces the communication interference. However, current researches on the capacity of wireless ad hoc networks with caching generally assume that content popularity follows a uniform distribution. They ignore the fact that contents in reality have skewed popularity, which may lead to totally different capacity results. In this paper, we evaluate how the distribution of the content popularity affects the per-node capacity, and derive different capacity scaling laws based on the skewness of the content popularity. Our results suggest that for wireless networks with caching, when contents have skewed popularity, increasing the number of nodes monotonically increases the per-node capacity. |
| Databáze: | OpenAIRE |
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