Title :
An improved channel estimation method of TD-SCDMA system and its performance analysis
Author :
Hou, Jie ; Tang, Liangrui
Author_Institution :
Inst. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
B. Steiner channel estimation algorithm is generally adopted in TD-SCDMA system. However, because of the impact of background noise, there are some errors between the estimated channel impulses responses(CIRs) and the real ones in terms of amplitude and time-delay, leading to the system performance decreases. This paper proposes a gate method. This method comprehensively considers the effects of the power of the strongest path and the noises, when it is setting the gate value for the CIRs. The simulation results show that the improved CIRs are closer to the ideal ones and the system performance is effectively increased. Besides, this method is easily to be realized without adding any extra computations of system.
Keywords :
channel estimation; code division multiple access; noise; time division multiple access; transient response; CIR; TD-SCDMA system; background noise; channel estimation; channel impulses response; gate method; performance analysis; Algorithm design and analysis; Channel estimation; Estimation; Logic gates; Noise; Receivers; Time division synchronous code division multiple access; B. Steiner algorithm; CIR; TD-SCDMA; channel estimation; gate processing;
Conference_Titel :
Network Infrastructure and Digital Content, 2010 2nd IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6851-5
DOI :
10.1109/ICNIDC.2010.5657868
