INTERFERENCE, SENSITIVITY AND CAPACITY ANALYSIS FOR MEASUREMENT-BASEDWIRELESS ACCESS SPECTRUM SHARING

In this paper, interference caused by multiple uncoordinated low-power wireless access system transmitters to fixed point-to-point microwave receivers is analyzed. The analysis shows that the density of wireles s access system users that can share spectrum with point-to-point micr owave systems depends critically on the propagation relation, the thre shold of detecting energy from point-to-point transmitters, and the al lowable interference into point-to-point receivers. We also show that, for reasonable assumptions of point-to-point link, wireless access sy stem, and propagation parameters, a wireless access system employing m easurement-based interference avoidance must detect energy of point-to -point transmissions far below the thermal noise floor of the wireless access system receivers. Meeting this requirement could increase the complexity of wireless access systems. This work is targeted towards u nderstanding the implications for local exchange networks of wireless system alternatives that could provide access to those networks.