Experiment on MIMO cognitive radio using Tx/Rx beamforming

Iwata, Ryosuke; Va, Vutha; Sakaguchi, Kei; Araki, Kiyomichi

doi:10.1109/pimrc.2013.6666637

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…Various researchers have explored the simultaneous exploitation of two techniques among these three, which are CR-NOMA, [40][41][42] CR-MIMO, [43][44][45][46] and MIMO-NOMA, [47][48][49] for better spectral efficiency. Moreover, the simultaneous exploitation of all these three techniques is suggested in Thakur et al 50 ; however, it is completely unexplored.…”

Section: Problem Formulation and Potential Contributionmentioning

confidence: 99%

Spectral efficient designs of MIMO‐based CR‐NOMA for Internet of Things Networks

Thakur

Singh

2021

Int J Communication

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Due to rapid increase in the wireless-connected Internet-of-things (IoT) devices, the communication among devices is a critical task as it relies on the radio-frequency spectrum, which is a limited resource. Therefore, additional spectral efficient communication designs are required for future IoT networks. By keeping this in mind, we have exploited individually spectral efficient technologies such as the cognitive radio (CR), non-orthogonal multiple access (NOMA), and multiple-input multiple-output (MIMO) simultaneously that is MIMO-based CR-NOMA (MIMO-CR-NOMA) and have proposed as well as analyzed a potential framework for its downlink scenario. The closed-form expressions for the throughput at each user due to the number of transmitting and receiving antennas are derived numerically. Further, we have derived mathematical expressions for the sum throughput of different frameworks such as CR-NOMA, CR-MIMO, and MIMO-CR-NOMA systems. Moreover, the proposed frameworks are simulated, and the relationship between two NOMA users each with multiple antennas is illustrated with simulation results.

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Section: Problem Formulation and Potential Contributionmentioning

confidence: 99%

Spectral efficient designs of MIMO‐based CR‐NOMA for Internet of Things Networks

Thakur

Singh

2021

Int J Communication

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“…Iwata et al . [33] have put efforts towards the practical implementation of MIMO–CR communication system by using Tx/Rx beamforming and have validated the feasibility by measuring its throughput performance for CUs as well as PUs. It is perceived that the considered system performs well if the PUs’ transmit power is large enough when compared to that of the CUs transmit power.…”

Section: Related Workmentioning

confidence: 99%