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DFT-based Channel Estimation Scheme for Sidelink in D2D Communication
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 Title & Authors
DFT-based Channel Estimation Scheme for Sidelink in D2D Communication
Moon, Sangmi; Chu, Myeonghun; Kim, Hanjong; Kim, Daejin; Kim, Cheolsung; Hwang, Intae;
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Recently, 3rd Generation Partnership Project (3GPP) has developed device-to-device (D2D) communication to cope with the explosively increasing mobile data traffic. The D2D communication uses sidelink based on single carrier-frequency division multiple access (SC-FMDA) due to its low peak-to-average power ratio (PAPR). In addition, 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 sidelink in D2D communication. The proposed scheme uses the 2-Dimensional Minimum Mean Square Error (2-D MMSE) interpolation scheme for the user moving at a high speed. We perform the system level simulation based on 20MHz bandwidth of 3GPP LTE-Advanced system. Simulation results show that the proposed channel estimation scheme can improve signal-to-interference-plus-noise ratio (SINR), throughput and spectral efficiency of conventional scheme.
2-D MMSE;D2D;DFT-based Channel Estimation;Sidelink;System Level Simulation;
 Cited by
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