Abstract
In this paper, the transform-domain communication system based multi-user access system has been implemented and demonstrated via software-defined radio. A practical testbed with two National Instruments PXIe devices and four universal software defined radio reconfigurable input/output (USRP RIO) devices is presented for system implementation. A successive interference cancellation (SIC) receiver is designed to improve its multiuser performance. The testbed is capable of detecting interference and transmitting in real-time. Additionally, the centralized layout and distributed layout of system devices are both evaluated. We have demonstrated and demonstrated real-time seamless data transmission among six users, while avoiding environment interference. Details of system design including testbed synchronization, SIC receiver, and bit error rate are also presented.
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Hu, S., Luo, Q., Wang, P., Liu, Z., Huang, D., Gao, Y. (2019). Development and Performance Evaluation of TDCS Multiple Access System. In: Liang, Q., Liu, X., Na, Z., Wang, W., Mu, J., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2018. Lecture Notes in Electrical Engineering, vol 515. Springer, Singapore. https://doi.org/10.1007/978-981-13-6264-4_49
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DOI: https://doi.org/10.1007/978-981-13-6264-4_49
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