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Burst Frame Synchronization for MC-DS-CDMA System in Multipath Channels

Multi-Carrier Direct-Sequence Code Division Multiple Access (MC-DS-CDMA) has gradually been widely used due to its advantages of high transmission rate and multi-user access. The burst frame synchronization detection indicates the start position of the information, which is an important step in the synchronization of the MC-DS-CDMA receiver. In this paper, we propose a time-frequency two-dimensional frame synchronization model, with coherent accumulation in the time dimension and non-coherent accumulation in the frequency dimension for enhancing its performance in multipath channels. Specifically, we derive the closed-form expressions of false alarm probability and detection probability, and verify the expressions through the simulation results. Finally, we conduct the comparative simulation between the MC-DS-CDMA system with the traditional Single-Carrier Direct-Sequence Code Division Multiple Access (SC-DS-CDMA) system. The result shows that the MC-DS-CDMA system has better performance.