Cell Free Massive Mimo-Enabling Technology In Providing Uniformly Good Service To Users For 5g And B5g Mobile Communications

Oyeleke, Oluseun; Thomas, Sadiq; Bismark, Idowu; Idris, Muhammad Zaffwan; Nkemdilim, Ofodile; Hussein, Suleiman U.

doi:10.1109/icecco48375.2019.9043191

2019 15th International Conference on Electronics, Computer and Computation (ICECCO) 2019

DOI: 10.1109/icecco48375.2019.9043191

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Cell Free Massive Mimo-Enabling Technology In Providing Uniformly Good Service To Users For 5g And B5g Mobile Communications

Oluseun Oyeleke

Sadiq Thomas

Idowu Bismark

et al.

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2022

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“…The spectral efficiency is improved via spatial multiplexing, and the data rates become far higher than before. However, the inter-cell interference and weak service at the cell edge become the main challenge [4].…”

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confidence: 99%

Performance of Multiuser Downlink Cell-Free Massive MIMO Systems With Hard Deadlines

2022

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Cell-free massive MIMO (mMIMO) is expected to be a novel network architecture to support massive connections, ultra-high transmission rate, and ultra-reliability low-latency transmission. Therefore, applications in ultra-reliable low-latency communications (URLLC) can be served by the cell-free mMIMO network in the future. This paper considers a multiuser downlink cell-free massive MIMO communication system and defines two events to evaluate the system's failure in latency and reliability performance of the transmission. The first kind of event is defined as Transmission Error, where the value of the downlink rate becomes too high to be supported by the channel between the access points (APs) and user equipments (UEs), while the second event is defined as Time Overflow, where the time of packet delivery violates the hard deadline. The probabilities of these events can help evaluate the URLLC performance of the system because the probability of Transmission Error reflects the reliability of the transmission while the probability of Time Overflow reflects the latency of the transmission. We derive the expressions of the probabilities of these two events and the final probability system outage, with maximum ratio transmission (MRT) and zero-forcing (ZF) precoding, based on the properties of Gamma distribution and the approximation for non-isotropic vectors. We finally provide the numerical results by system-level simulations to show that the expressions are accurate and discuss the influence of the noise variance, the number of UEs, and the precoding scheme on the URLLC performance.

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confidence: 99%

Performance of Multiuser Downlink Cell-Free Massive MIMO Systems With Hard Deadlines

2022

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Cell Free Massive Mimo-Enabling Technology In Providing Uniformly Good Service To Users For 5g And B5g Mobile Communications

Cited by 1 publication

References 15 publications

Performance of Multiuser Downlink Cell-Free Massive MIMO Systems With Hard Deadlines

Performance of Multiuser Downlink Cell-Free Massive MIMO Systems With Hard Deadlines

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