Abstract
In this paper, a new cooperative protocol based on code-shifted differential chaos shift keying (CS-DCSK) modulation, which is an improved differential chaos shifted keying modulation scheme no requirement delay circuits at autocorrelation receiver (AcR), is proposed. The relay user transmits own data while piggybacks other user's data which are received and decoded at pre-phase utilizing the multiple bit-streams transmission property of generalized CS-DCSK (GCS-DCSK). Moreover, the cooperative user may forward the estimated data only when its data is correctly decoded using cyclic redundancy check (CRC) code, namely selective decode-and-forward (DAF). Simulation results show that the proposed protocol has better performance than that of conventional four phase cooperative protocol in bit error rate (BER) and system throughput.
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