A novel outer loop power control algorithm based on fuzzy theory for TD-SCDMA

作者：Sun Yi^*; Li Qin; Tang Liangrui

来源：2010 3rd IEEE International Conference on Broadband Network and Multimedia Technology, IC-BNMT2010, 2010-10-26 To 2010-10-28.

DOI：10.1109/ICBNMT.2010.5705141

• BLER
• Fast control
• Fuzzy membership function
• Fuzzy theory
• Inner-loop power control
• Optimal step-size
• Outer loop power control
• Outer loop power controls
• Simple operation
• TD-SCDMA
• Wireless communication system

In this paper, a new outer loop power control algorithm based on fuzzy theory is proposed. The value corresponding with the difference of BLER and BLERtar, processed by fuzzy membership function, is dealt with fuzzy theory principle to calculate the adjustment step-size of SIRtar for the inner loop power control. The algorithm with the feature of simple operation and fast control can obtain optimal step-size of SIRtar to overcome the robust phenomenon of traditional algorithms to a large extent. Experimental results certify that the proposed algorithm has excellent control capacity to adjust SIRtar to a suitable level and keep BLER changing in a more ideal range to ensure QoS of wireless communication system. As a result, it can be well applied in communication to improve the system performance.

• 出版日期2010
• 单位华北电力大学