WIRELESS NETWORKS FREQUENCY REUSE DISTANCE REDUCTION

摘要

A method for improving spectral efficiency of a wireless network is provided. A microcell concept is utilized to improve isolation between the reuse pairs of antennas, thus significantly reducing reuse distance and increasing the network capacity. Radiation profiles of the reuse pair of antennas are positioned in a way which increases the isolation and thus improves the signal to interference ratio. Directional antennas are employed to further increase isolation between the reuse pair. Shielding from the surrounding structures is utilized to further increase the isolation. Additional antennas are placed near the cell boundary to further increase the signal to interference ratio and reduce deep fades in multipath environment.