Authors:
Hun Choe
;
Sangmi Moon
and
Intae Hwang
Affiliation:
Chonnam National University, Korea, Republic of
Keyword(s):
2-D MMSE, DFT-based Channel Estimation, DMRS, MIMO, SC-FDMA, Sidehaul System.
Related
Ontology
Subjects/Areas/Topics:
Adaptive Systems
;
Detection and Estimation
;
Digital Filter Design and Implementation
;
Digital Signal Processing
;
Signal Processing in Communications
;
Telecommunications
Abstract:
Recently, 3rd Generation Partnership Project (3GPP) has developed sidehaul system to cope with the
explosively increasing mobile data traffic. The sidehaul system is based on single carrier-frequency division
multiple access (SC-FMDA) due to its low peak-to-average power ratio (PAPR). Also, demodulation
reference signal (DMRS) is designed to support multiple input multiple output (MIMO). In this paper, we
propose the DFT-based channel estimation scheme for sidehaul system. The proposed scheme uses the 2-dimensional minimum mean square error (2-D MMSE) interpolation scheme for the user moving at a high
speed. Simulation results show that the proposed channel estimation scheme can improve normalized mean
square error (NMSE), error rate and throughput of conventional system.