Title :
Poster: An optimization based on semi-blind detection for LTE PUCCH format 2
Author :
Yilong Pang ; Chunjing Hu ; Tao Peng ; Deping Lin ; Yinxin Wang
Author_Institution :
Wireless Signal Process. & Network Lab., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Physical uplink control channel (PUCCH) in Long Term Evolution (LTE) consists of two basic transmission formats: format 1/la/lb and format 2/2a/2b. The semi-blind algorithm can improve channel estimation accuracy by using both data energy and RS energy for PUCCH format 2 in low-speed environment with a cost of higher computation complexity. This paper analyzes the semi-blind algorithm, and then we simplify the equations by further derivation. We find that the computation complex can be decreased by deducing the semi-blind algorithm formulas further. The times of complex multiplication after derivation is decreased to 2.61% to 8.67% than the non-simplified.
Keywords :
Long Term Evolution; channel estimation; computational complexity; optimisation; 1/la/lb transmission format; 2/2a/2b transmission format; LTE PUCCH format 2; RS energy; channel estimation accuracy; computation complexity; data energy; long term evolution; physical uplink control channel; semi-blind algorithm; semi-blind detection; Channel estimation; Computational complexity; Detection algorithms; Long Term Evolution; Optimization; Signal processing algorithms; Wireless communication; LTE; PUCCH; computational complexity; format2; semi-blind;
Conference_Titel :
Communications and Networking in China (CHINACOM), 2014 9th International Conference on
DOI :
10.1109/CHINACOM.2014.7054384
