Using ensemble-averaged SNR or receiver estimated SNR in the simulation of LTE-Advanced Downlink Transmission.

• Main Authors: Zong-Ru Jhan, 詹宗儒
• Other Authors: 劉玉蓀
• Format: Others
• Online Access: http://ndltd.ncl.edu.tw/handle/vhe7kr

碩士 === 國立臺北科技大學 === 電子工程系研究所 === 104 === In this thesis, we compared and analyzed the performance difference between the adoption of ensemble-averaged signal-to-noise ratio (SNR) and receiver estimated SNR in terms of the LTE-Advanced downlink performance with computer simulations. During the simulation, three channel models recommended by LTE-Advanced are considered without Doppler effects: Extended Pedestrian A model (EPA), Extended Vehicular A model (EVA), and Extended Typical Urban model (ETU). The simulation results show that if the ensemble-averaged SNR is adopted, the performance of LTE-Advanced under the three channel models is very similar when the hard-decision decoder is used, and the best performance is obtained under the ETU model when the Turbo-decoder is used. Whereas if the receiver estimated SNR is adopted, no matter either the hard-decision decoder or the Turbo-decoder is used, the best performance is obtained under the EPA model and similar performance is obtained under EVA and ETU models. Therefore, we concluded that the adoption of receiver estimated SNR during performance evaluation approaches to the real world conditions.