Multi-beam array antennas are being deployed in wireless cellular networks to implement space division multiple access (SDMA), using various forms of antenna sectorization, as a means to increasing the capacity of these networks. In this paper we propose a dynamic beam-forming strategy which provides superior SDMA performance. Specifically, we propose successive splitting of an original wide angle beam so as to spatially separate a number of initially interfering transmitters. This is shown to result in very drastic reductions in delays and computational loads while incurring no throughput penalties compared to standard random access protocols.
George Thomas, George Thomas,
"New dynamic beam-forming protocol for wireless packet data networks", Proc. SPIE 4531, Modeling and Design of Wireless Networks, (27 July 2001); doi: 10.1117/12.434457; https://doi.org/10.1117/12.434457