Yu-Cheun Jou

Adaptive Control of the Reverse Link in cdma2000

This paper looks at a way to adaptively operate the cdma2000 reverse link (RL) using velocity estimation. A simple analysis of the power control process is carried out to better understand the impact of power control on the efficacy of the RL operation, both at the link and system levels. The structure and performance of the RL is presented, and different areas where the velocity estimation could be used are identified, e.g., turning off power control selectively, adjusting traffic-to-pilot ratios and controlling the transmit level of pilots for mobiles in dormant mode. The algorithm for doing the velocity estimation and its performance concludes the paper.

cdma2000: adaptive reverse link operation using Doppler estimation

This paper looks at a way of doing adaptive power control using Doppler estimation. It looks at the performance of the reverse link (RL) of cdma2000 under various conditions for a mobile station in a vehicle. Then, it looks at various ways of Doppler estimation, and suggests a method for identifying the speed of the vehicle to control the power of the system adaptively and enhance its performance.