Title :
Power control and QoS of a CDMA based hierarchical cell structure network
Author :
Shin, Seung Hoon ; Lee, Hyung Ki ; Kwak, Kyung Sup
Author_Institution :
Dept. of Electron. Eng., Inha Univ., Inchon, South Korea
Abstract :
The hierarchical cell structure is needed for different requirements: large cells guarantee continuous coverage, while small cells are necessary to achieve good spectrum efficiency and high capacity. In this paper a CDMA system in macro/micro cell structure is investigated. We propose an adaptive scheme of controlling cell size according to time-varying traffic distribution in a macro/micro overlaid cell environment. This aims to bring communications quality in both macro-cell and micro-cell to a target quality level. Simulation results show that the proposed scheme effectively controls the time-varying traffic fluctuations and provides an enhanced performance
Keywords :
adaptive control; cellular radio; code division multiple access; microcellular radio; power control; quality of service; telecommunication control; telecommunication traffic; CDMA based hierarchical cell structure network; QoS; adaptive scheme; cell size; continuous coverage; enhanced performance; high capacity; macro cell structure; micro cell structure; overlaid cell environment; power control; simulation; spectrum efficiency; target quality level; time-varying traffic distribution; time-varying traffic fluctuations; Adaptive control; Base stations; Communication system traffic control; Interference; Mobile communication; Multiaccess communication; Power control; Programmable control; Size control; Traffic control;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818647
