Maintaining high Capacity for Centralized DCA with Limited Measurements and Signaling
Miguel Berg · 1999
Centralized dynamic channel allocation strategies can, in theory, achieve very high capacity in terms of achievable load at a certain quality level. Unfortunately, these strategies have often been considered non-feasible in practice due to the massive amount of measurements and signaling typically required. In this paper we evaluate some methods to maintain high performance while drastically reducing the measurement and signaling requirements. Our DCA algorithm is based on measurements of the link gain matrix. We show that for a microcellular Manhattan environment, only the gains from the three strongest beacons have to be measured and signaled by each mobile in order to achieve almost the same capacity as an ideal system where all beacons can be measured. I. INTRODUCTION The high user data rates that become possible in third generation systems will require new and more efficient methods to manage the radio resources. Static assignment techniques like FCA will not work when, for inst...