Cooperative 3D Beamforming for Small-Cell and Cell-Free 6G Systems

Abstract

Three dimensional (3D) resource reuse is an important design requirement for the prospective 6G wireless communication systems. Hence, we propose a cooperative 3D beamformer for use in 3D space. Explicitly, we harness multiple base station antennas for joint zero forcing transmit pre-coding for beaming the transmit signals in specific 3D directions. The technique advocated is judiciously configured for use in both cellbased and cell-free wireless architectures. We evaluated the performance of the proposed scheme using the novel metric of Volumetric Spectral Efficiency (VSE). We also characterized the performance of the scheme in terms of its spectral efficiency (SE) and Bit Error Rate (BER) through extensive simulation studies.

On the Asymptotic Performance Analysis of the k-th Best Link Selection Over Non-Identical Non-Central Chi-Square Fading Channels

“…. Similarly, we can easily plot and study the effect of variations in other system parameters in the high SNR regime using the expression for the CDF of Z max in (26). (b) High SNR analysis of average throughput The average throughput at the receiver is given by,…”