  Cell biasing and downlink transmit power are two controls that may be used to
improve the spectral efficiency of cellular networks. With cell biasing, each
mobile user associates with the base station offering, say, the highest biased
signal to interference plus noise ratio. Biasing affects the cell association
decisions of mobile users, but not the received instantaneous downlink
transmission rates. Adjusting the collection of downlink transmission powers
can likewise affect the cell associations, but in contrast with biasing, it
also directly affects the instantaneous rates. This paper investigates the
joint use of both cell biasing and transmission power control and their
(individual and joint) effects on the statistical properties of the collection
of per-user spectral efficiencies. Our analytical results and numerical
investigations demonstrate in some cases a significant performance improvement
in the Pareto efficient frontiers of both a mean-variance and
throughput-fairness tradeoff from using both bias and power controls over using
either control alone.
