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Updated: Jul 19, 2025

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Maximal Ratio Combining Detection in OFDM Systems with Virtual Carriers Over V2V Channels
J Alberto Del Puerto-Flores1, Francisco R Castillo-Soria2, J Vázquez-Castillo3
1Facultad de Ingeniería, Universidad Panamericana, Álvaro del Portillo 49, Zapopan 45010, JAL, Mexico.
Abstract:
This paper examines the performance of orthogonal frequency division multiplexing (OFDM) systems for vehicle-to-vehicle (V2V) communication channels. More specifically, a doubly selective channel under high intercarrier interference (ICI) is considered. Current solutions involve complex detection and/or reduced spectral efficiency receivers. This paper proposes the use of virtual carriers (VC) in an OFDM system with a low-complexity maximal ratio combining (MRC) detector to improve the bit error rate (BER) performance. The results show that VC provides diversity in received data, resulting in a ≥5 dB gain compared to previous OFDM systems with conventional linear/nonlinear detectors used as a reference. The detector presented in this paper has linear complexity, making it a suitable solution for real-time V2V communication systems.
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