Enabling 5G backhaul and access with millimeter-waves

Abstract

This paper presents the approach of extending cellular networks with millimeter-wave backhaul and access links. Introducing a logical split between control and user plane will permit full coverage while seamlessly achieving very high data rates in the vicinity of mm-wave small cells

Substrate-Integrated Waveguide PCB Leaky-Wave Antenna Design Providing Multiple Steerable Beams in the V-Band

“…The large available bandwidth at mm-wave frequencies especially in the 60 GHz band enables new use case scenarios such as the 5G hot-spot proposed for the next generation of mobile communications (5G) [1][2][3][4]. Generally, 5G is expected to bring a revolution to mobile communications: a 1000-fold increase in mobile data traffic and a substantially larger number of connected users per cell [5].…”

“…Generally, 5G is expected to bring a revolution to mobile communications: a 1000-fold increase in mobile data traffic and a substantially larger number of connected users per cell [5]. This is to be achieved by using a wider RF bandwidth and greater spectral efficiency as cell size is decreased [1][2][3]. These requirements can be met using carrier frequencies in the 57-66 GHz band where a large bandwidth is internationally available.…”

“…These requirements can be met using carrier frequencies in the 57-66 GHz band where a large bandwidth is internationally available. To mitigate the higher free-space path loss in the millimeter-wave range, directive antennas are considered [2][3][4]6]. However, the usage of directive antennas requires beam steering to enable user mobility and multiple independent beams so that multiple users can be supported in dense user scenarios simultaneously.…”

“…However, the usage of directive antennas requires beam steering to enable user mobility and multiple independent beams so that multiple users can be supported in dense user scenarios simultaneously. Therefore, steerable directive antennas are a key technology for supporting multiple users in dense user scenarios [3,6,7]. Another key technology is optical fiber for fronthauling the high capacity 5G hot-spots and small cells [3,8].…”

Beamspace multiplexing for wireless millimeter-wave backhaul link

“…In order to combat high propagation path loss in mmwave communications, directional high gain antennas are equipped at both ends of the backhaul link [5] [6]. In previous work in free-space line-of-sight (LoS) mm-wave backhaul links, which can be satisfied by carefully choosing BS antenna sites, only a single high gain beam that was formed by either a dish antenna or an antenna array was considered, while multiplexing was taken place at other domains, such as time, frequency, or polarization.…”