Research Article
An optimization based on semi-blind detection for LTE PUCCH format 2
@INPROCEEDINGS{10.4108/icst.chinacom.2014.256461, author={Yilong Pang and Chunjing Hu and Tao Peng and Deping Lin and Yinxin Wang}, title={An optimization based on semi-blind detection for LTE PUCCH format 2}, proceedings={9th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2015}, month={1}, keywords={lte pucch format2 semi-blind computational complexity}, doi={10.4108/icst.chinacom.2014.256461} }- Yilong Pang
Chunjing Hu
Tao Peng
Deping Lin
Yinxin Wang
Year: 2015
An optimization based on semi-blind detection for LTE PUCCH format 2
CHINACOM
IEEE
DOI: 10.4108/icst.chinacom.2014.256461
Abstract
Physical uplink control channel (PUCCH) in Long Term Evolution (LTE) consists of two basic transmission formats: format 1/1a/1b 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.
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