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This paper compares the throughput performance of Orthogonal Frequency Division Multiple Access (OFDM) and Multi-Carrier CDMA (MC-CDMA) in Inter-Vehicle Communications (IVC). In particular, the authors compare the throughputs in a situation where hidden terminals are no longer negligible. They encounter the situation in an intersection where two or more cars are crossing by. Due to the hidden terminal degradation, poor throughput performance is obtained with OFDM scheme. On the other hand, MC-CDMA has a resistance to the hidden terminals as it can support simultaneous packets. However, the transmission data rate is much slow because of the spreading. Thus the total throughput may not be as high as the OFDM.
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