Cache-assisted communications in backhaul-limited wireless networks

Abstract

The recent flood of mobile data is motivating the deployment of dense wireless networks to boost the capacity of next-generation cellular networks. However, deploying more and more base stations (BSs) will impose heavy burdens on existing backhaul links. It could cause much congestion and long latency, which may end up degrading the user experience. The infrastructure update of backhaul links could also be labor-intensive and require considerable expenditures. Caching popular contents at BSs has recently been proposed as a powerful and cost-effective supplement to existing limited backhaul links for accommodating the tremendous amount of mobile data traffic. Cache-assisted communications enjoy important benefits, such as increasing successful transmission probability, reducing d...[ Read more ]