Novel Cellular Active Array Antenna System at Base Station for Beyond 4G

Novel Cellular Active Array Antenna System at Base Station for Beyond 4G

This paper introduces a base station antenna system as a future cellular technology. The base station antenna system is the key to achieving high-speed data transmission. It is particularly important to improve the frequency reuse factor as one of the roles of a base station. Furthermore, in order to solve the interference problem due to the same frequency being used by the macro cell and the s...

A Base Station Smart Antenna System for CDMA Cellular

Adaptive antenna arrays can increase the capacity of wireless mobile communication systems by reducing cochannel interference. This thesis reviews current base station technology and examines the possibility of implementing an adaptive phased antenna array at a cellular CDMA base station. It is seen that a computationally simple beamforming system and direction-of-arrival estimator can signific...

Iterative Detection for Mc-cdma System with Base Station Antenna Array for Fading Channels

Performance of a Multi-Carrier CDMA (MC-CDMA) system using iterative detection over a fading channel can be improved by incorporating antenna diversity at the base station (BS). In this paper we propose a new MC-CDMA system with multiple BS antennas to combat fading eeects. We consider only the uplink of a mobile in a terrestrial cell and derive the frequency selective MC-CDMA channel model usi...

Optimal Base Station Antenna Downtilt in Downlink Cellular Networks

From very recent studies, the area spectral efficiency (ASE) performance of downlink (DL) cellular networks will continuously decrease and finally to zero with the network densification in a fully loaded ultra-dense network (UDN) when the absolute height difference between a base station (BS) antenna and a user equipment (UE) antenna is larger than zero, which is referred as the ASE Crash. We r...

Base station antenna selection for LTE networks