Performance of Slotted ALOHA in User-Centric Cell-Free Massive MIMO
<|reference_start|>Performance of Slotted ALOHA in User-Centric Cell-Free Massive MIMO: To efficiently utilize the scarce wireless resource, the random access scheme has been attaining renewed interest primarily in supporting the sporadic traffic of a large number of devices encountered in the Internet of Things (IoT). In this paper we investigate the performance of slotted ALOHA -- a simple and practical random access scheme -- in connection with the grant-free random access protocol applied for user-centric cell-free massive MIMO. More specifically, we provide the expression of the sum-throughput under the assumptions of the capture capability owned by the centralized detector in the uplink. Further, a comparative study of user-centric cell-free massive MIMO with other types of networks is provided, which allows us to identify its potential and possible limitation. Our numerical simulations show that the user-centric cell-free massive MIMO has a good trade-off between performance and fronthaul load, especially at low activation probability regime.<|reference_end|>
@article{maryopi2024performance,
    title={Performance of Slotted ALOHA in User-Centric Cell-Free Massive MIMO},
    author={Dick Maryopi, Daud Al Adumy, Osman Musa, Peter Jung, Agus Virgono},
    journal={arXiv preprint arXiv:2405.17979},
    year={2024},
    archivePrefix={arXiv},
    eprint={2405.17979},
    primaryClass={cs.IT cs.NI eess.SP math.IT}
}