2019 | vol. 67 | nr. 1 | art. 11

A Spatial Multiplexing Scheme of Overlapping Coverage Area for Single Frequency Networks

Feng Hu, Kaiyue Wang, Libiao Jin
The “artificial multipath” in the overlapping coverage area of the single frequency network (SFN) increases the signal power. However, the generated self-interference due to SFN overlapping will also worsen the signal-to-noise ratio (SNR) condition. This work proves that the SFN overlapping coverage area can achieve the maximal transmit diversity gain in the form of orthogonal spatial multiplexing. Based on this, a parallel Alamouti orthogonal spatial multiplexing scheme is reconstructed to promote the spatial freedom, obtain the transmit diversity gain and overcome the deterioration of signal quality in the overlapping coverage area. Simulation results show that when the number of the transmitting antennas is two and the number of the receiving antenna is one, the introduced parallel AIamouti-SFN scheme can achieve 9.5dB SNR gains when BER is 10-3 compared with the traditional SFN scheme. It is verified that the orthogonal spatial multiplexing scheme can effectively utilizes the self-interference of overlapping coverage areas to improve signal quality.
Keywords: single frequency network, overlapping coverage area, parallel Alamouti spatial multiplexing, multiple input, multiple output technology
To cite this article: Feng Hu, Kaiyue Wang, Libiao Jin, “A Spatial multiplexing scheme of overlapping coverage area for single frequency networks”, in Electrotehnica, Electronica, Automatica (EEA), 2019, vol. 67, no. 1, pp. 83-89 ISSN 1582-5175.