|
|
Theoretical Comparison of BER Performance between Single-Carrier Frequency-Domain Equalization and Multi-carrier OFDM |
Liu Qian-lei; Yang Lu-xi |
Department of Radio Engineering Southeast University Nanjing 210096 China |
|
|
Abstract Single-Carrier Frequency-Domain Equalization (SC-FDE) and multi-carrier Orthogonal Frequency Division Multiplexing (OFDM) are two techniques to combat multipath fading in digital communications. This paper compares the BER performances of them for white Gaussian noise channel theoretically. By the value-changing property of Gaussian distribution’s tail probability, the following conclusion is drawn: OFDM is a little better than SC-FDE in BER performance for Sow Signal-to-Noise Ratio (SNR), while SC-FDE greatly outperforms OFDM for high SNR. This conclusion is significant to the design of the communication system for its important reference value.
|
Received: 04 December 2003
|
|
|
|
|
|
|
|