標題: Design of power control mechanisms with PCM realization for the uplink of a DS-CDMA cellular mobile radio system
作者: Chang, CJ
Lee, JH
Ren, FC
電信工程研究所
電信研究中心
Institute of Communications Engineering
Center for Telecommunications Research
公開日期: 1-八月-1996
摘要: Power control (PC) is an important issue in a direct sequence-code division multiple access (DS-CDMA) cellular mobile radio system. Higher link performance and greater system capacity cannot be achieved unless an appropriate PC mechanism is employed. In previous research, a delta-modulation (DM) realization of strength-based and SIR-based PC mechanisms for uplink communication has been studied by simulation. In order to obtain higher PC trackability, in this paper we study a pulse-code-modulation (PCM) realization of the above two PC mechanisms for the uplink of a DS-CDMA cellular mobile radio system. The simulation results presented here indicate that PC mechanisms with PCM realization for the uplink can achieve a lower outage probability and thus higher link performance than PC mechanisms with DM realization. We also obtain optimal design parameters such as the stepsize and the control mode for the two PCM PC mechanisms. In addition, we compare the two PCM PC mechanisms in terms of their outage probability and stability and find that the strength-based mechanism has a higher outage probability but greater stability than the SIR-based mechanism.
URI: http://dx.doi.org/10.1109/25.533767
http://hdl.handle.net/11536/1117
ISSN: 0018-9545
DOI: 10.1109/25.533767
期刊: IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
Volume: 45
Issue: 3
起始頁: 522
結束頁: 530
顯示於類別:期刊論文


文件中的檔案:

  1. A1996VC19200012.pdf