Multiple access DCSK communication system based on quantum computing method

J4 ›› 2016, Vol. 33 ›› Issue (5): 566-572.

• Quantum Optics • Previous Articles Next Articles

Multiple access DCSK communication system based on quantum computing method

LI Hui, HAO Xiao-xiao

School of physical and electronic information, Henan Polytechnic University, Jiaozuo 454000, China

Received:2015-05-18 Revised:2016-07-06 Published:2016-09-28 Online:2016-09-28

Abstract

Abstract: In order to reduce the interference among multiple users, a new system (multi-bit MA-DCSK) of chaotic multiple access communication is proposed, and the multi-user detection algorithm is designed for it. Through the simulation, the bit error rate (BER) of the multi-bit MA-DCSK system is compared with the variable delay MA-DCSK (VDMA-DCSK), and the result proves the new system has lower BER. By making use of the parallelism computation characteristic of quantum, the Grover quantum algorithm is used to solve the computational complexity of the multi-user detection algorithm, and it can reduce the computational complexity from to . The simulation result shows Grover quantum algorithm can effectively reduce the computational complexity without affecting the performance of the system at the same time.

Key words: chaotic communication; Multi-bit MA-DCSK; multi-user detection algorithm; Grover quantum algorithm; computational complexity

LI Hui, HAO Xiao-xiao. Multiple access DCSK communication system based on quantum computing method[J]. J4, 2016, 33(5): 566-572.

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