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Real Time Multiuser-MIMO Beamforming/Steering Using NI-2922 Universal Software Radio Peripheral

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Advances in Information and Communication (FICC 2019)

Part of the book series: Lecture Notes in Networks and Systems ((LNNS,volume 69))

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Exponential growth in wireless service subscription and its corresponding data traffic prediction poses a threat to the current 4G system; this triggered next generation wireless system (5G) research to improve system data rate and the overall network capacity thus, gained attention. In addition to the high data rates, other key features essential for successful system deployment were proposed and addressed towards 5G framework using various disruptive technologies. These include: the millimeter-Wave, massive-MIMO, beamforming-beamsteering, and Heterogeneous Network. These features further prompt, reexamining the system design and performance trade-offs with the existing 4G wireless system. This article presents the system design, implementation, hardware prototyping for 5G system beamforming/beamsteering. Hardware prototyping uses National Instrument Software Defined Radio (NI USRP 2922) and array antenna for system performance analysis. Results obtained show improved performance with increasing antenna.

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Correspondence to Aliyu Buba Abdullahi .

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See Figs. 11, 12, 13 and 14.

Fig. 11.
figure 11

a Fully Digital BF. b Hybrid BF signal. c Hybrid with limited phase-shifters precisions (i) 3-bits (ii) 7-bits

Fig. 12.
figure 12

a Fully Digital BF. b Hybrid BF signal. c Hybrid BF with limited phase shifters precisions (i) 3-bits (ii) 4-bits (iii) 5-bits

Fig. 13.
figure 13

Performance with different transmitting element and modulation. ad Digital-Hybrid % EVM. e Effective SNR estimate. f Effective SNR estimate

Fig. 14.
figure 14figure 14

Various-elements Received signal constellation. a, b 16-QAM constellation. c, d 64-QAM constellation. e, f 256-QAM constellation. g, h 1024-QAM constellation

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Abdullahi, A.B., Caldeirinha, R.F.S., Hammoudeh, A., Uggalla, L., Eastment, J. (2020). Real Time Multiuser-MIMO Beamforming/Steering Using NI-2922 Universal Software Radio Peripheral. In: Arai, K., Bhatia, R. (eds) Advances in Information and Communication. FICC 2019. Lecture Notes in Networks and Systems, vol 69. Springer, Cham.

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