Time slot assignment algorithms for SDMA/TDMA system based on estimated SINR

摘要

This paper presents efficient time slot assignment algorithms applicable to the uplink of SDMA system. A frame consists of one control time slot and multiple communication time slots where terminals in different angular positions share the same time slot. In the proposed algorithms, a time slot is assigned to new terminal considering not only the signal quality of new terminal but also the signal quality of active terminals. Simple calculation method for estimated signal-to-interference plus noise ratio (SINR) is employed to decrease the computational complexity. The performance of the proposed algorithms is evaluated by computer simulations and compared with sectorized systems to show the validity of the proposed algorithms.