Title :
Time slot assignment for cellular SDMA/TDMA systems with antenna arrays
Author :
Hara, Yoshitaka ; Nabetani, Toshihisa ; Hara, Shinsuke
Author_Institution :
YRP Mobile Telecommun. Key Technol. Res. Labs. Co., Ltd, Yokosuka, Japan
Abstract :
This paper presents time slot assignment algorithms applicable to the uplink of SDAM systems. In these algorithms, a time slot is assigned to a new terminal depending not only on the signal quality of the new terminal but also on the signal quality of active terminals. We evaluate the blocking probability and the forced termination probability of space division multiple access/time division multiple access (SDMA/TDMA) systems with slot assignment algorithms in a cellular environment. The simulation results show that SDMA/TDMA systems have much better performance than TDMA systems and sectorized systems
Keywords :
adaptive antenna arrays; cellular radio; probability; radio links; space division multiple access; time division multiple access; SINR; TDMA systems; active terminals; antenna arrays; blocking probability; cellular SDMA/TDMA systems; forced termination probability; open loop power control; sectorized systems; signal quality; simulation results; space division multiple access; time division multiple access; time slot assignment algorithms; Adaptive arrays; Antenna arrays; Base stations; Communication system control; Mobile communication; Multiaccess communication; Power control; Signal to noise ratio; Slot antennas; Time division multiple access;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944504
