Deployable networks are foreseen to be one of the key technologies for public safety in fifth generation (5G) mobile communications and beyond. They can be used to complement the existing public cellular networks to provide temporary and on-demand connectivity in emergency situations. However, operating deployable networks in coexistence with public cellular networks can be challenging from an interference perspective. To gain insights on the deployment strategy for deployable networks, in this article, we present an extensive numerical study of coverage and interference analysis, considering four different co-existence scenarios and different types of deployable base stations (BSs), i.e., BS on a truck and BS on an Unmanned Aerial Vehicle (UAV). Our simulation results show that deploying deployable BSs in rural scenarios can provide good coverage to meet the service requirement for mission critical (MC) users. In addition, the interference impact is only substantial when the deployable and public networks are close to each other. Finally, allowing the MC users to access the public network can be of vital importance to guarantee their service when the interference level between public and deployable network is very high.
翻译:预计可部署的网络是第五代(5G)移动通信及以后的公共安全的关键技术之一,可用于补充现有的公共蜂窝网络,以便在紧急情况下提供临时和随需连通;然而,与公共蜂窝网络并存的可部署网络从干扰角度来说具有挑战性;要深入了解可部署网络的部署战略,我们在本篇文章中对覆盖范围和干扰分析进行了广泛的数字研究,考虑到四种不同的共存情景和不同类型的可部署基地站,即卡车和无人驾驶航空飞行器上的BS和BS,我们模拟结果表明,在农村部署可部署的BS能够提供良好的覆盖面,满足特派团关键用户的服务要求;此外,只有在可部署和公共网络彼此接近的情况下,干预影响才非常大;最后,在公共网络和可部署网络之间的干扰程度非常高时,允许MC用户进入公共网络,对于保证其服务至关重要。