Interference management for moving networks in ultra-dense urban scenarios

Nowadays, the number of users relying on broadband wireless connectivity while riding public transportation vehicles is increasing significantly. One of the promising solutions is to deploy moving base stations on public transportation vehicles to form moving networks (MNs) to serve these vehicular users inside the vehicles. In this paper, we study the benefits and challenges in deploying MNs in ultradense urban scenarios. We identify that the key challenge limiting the performance of MNs in ultradense urban scenarios is the inter-cell interference, which is exacerbated by the urban canyon effects. In order to address this challenge, we evaluate different inter-cell interference coordination and multiantenna interference suppression techniques for MNs. We show that by using MNs together with effective interference management approaches, the quality of service at the vehicular users can be significantly improved with negligible impacts on the performance of regular outdoor users.