Adaptive channel borrowing assignment for TDMA cellular mobile networks
Proceedings 10th IEEE International Conference on Networks (ICON 2002). Towards Network Superiority (Cat. No.02EX588) - Trang 293-297
Tóm tắt
This paper proposes adaptive channel borrowing assignment for TDMA cellular mobile networks in order to reduce the overall call blocking rate. This scheme is based on the cell's traffic situation by first choosing cell with the lowest traffic in the same cluster and then choose its vacant channels uniformly. The simulation model and TDMA frame format arrangement are based on GSM specifications. The simulation model considers 49 cells (7 clusters) in order to consider the effect of surrounding clusters on the central cluster and the overall system. The simulation considers both uniform and nonuniform traffic distributions. The simulation results show that the overall call blocking rate of adaptive channel borrowing with uniform channel allocation is lower than that of adaptive borrowing with channel ordering (ABCO). In contrast, the overall channel borrowing rate and the overall call drop rate of this method is higher than ABCO for uniform and nonuniform traffic distributions, respectively.
Từ khóa
#Time division multiple access #Cellular networks #Traffic control #Channel allocation #Telecommunication traffic #Telephony #Frequency #GSM #Digital systems #Base stationsTài liệu tham khảo
10.1109/T-VT.1982.23924
okada, 1993, On dynamic channel assignment in cellular mobile radio system, IEEE Trans Veh Technol, 938
lee, 1995, Mobile Cellular Telecommunications
1994, System mining, Nokia GSM Manual
sowerby, 1992, Outage probabilities in mobile radio systems suffering cochannel interference, IEEE Commu, 10, 516
maric, 1994, adaptive borrowing of ordered resources for the pan-european mobile communication (gsm) system, Communications IEE Proceedings-, 141, 93, 10.1049/ip-com:19941133
10.1109/25.45483