Cell selection for TDD two-tier cellular networks based on uplink-downlink capacity

We consider a time-division duplex (TDD) two-tier network, comprising macro- and femtocells coexisting in a co-channel operation mode, in which inter- and intra-tier interference are incurred. The proposed cell selection accounts for both uplink and downlink capacities. Comparison is made with path loss based and received signal strength based cell selections. Through simulation, we evaluate the performance of indoor and outdoor users, in terms of cdf, average capacity and 5%-outage capacity under different parameters. Our results indicate appealing performance of the proposed capacity based cell selection under TDD two-tier cellular networks.