TY - GEN
T1 - Joint Impact of Limited Fronthaul and Pilot Length on Payload Data Rate of Cell-Free Massive MIMO
AU - Jo, Sangwon
AU - Yu, Daesung
AU - Park, Seok Hwan
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This work studies the uplink of a cell-free massive MIMO (mMIMO) system with finite-capacity fronthaul links. In particular, the impacts of fronthaul capacity and pilot length on the channel estimation quality as well as the payload data transmission rates are analyzed. To this end, the powers of the quantization noise signals, the estimated channel coefficients and the estimation errors are calculated first. Then, it is followed by the derivation of the achievable payload data transmission rates under two combining schemes: optimal minimum mean squared error (MMSE) and low-complexity maximum-ratio combining (MRC) schemes. Numerical results show how the average sum-rate of the system is affected by the system parameters such as the fronthaul capacity, uplink signal-to-noise ratio (SNR), and the pilot length.
AB - This work studies the uplink of a cell-free massive MIMO (mMIMO) system with finite-capacity fronthaul links. In particular, the impacts of fronthaul capacity and pilot length on the channel estimation quality as well as the payload data transmission rates are analyzed. To this end, the powers of the quantization noise signals, the estimated channel coefficients and the estimation errors are calculated first. Then, it is followed by the derivation of the achievable payload data transmission rates under two combining schemes: optimal minimum mean squared error (MMSE) and low-complexity maximum-ratio combining (MRC) schemes. Numerical results show how the average sum-rate of the system is affected by the system parameters such as the fronthaul capacity, uplink signal-to-noise ratio (SNR), and the pilot length.
KW - Cell-free massive MIMO
KW - finite-capacity fronthaul
KW - imperfect CSI
UR - https://www.scopus.com/pages/publications/85169299920
U2 - 10.1109/ICUFN57995.2023.10200279
DO - 10.1109/ICUFN57995.2023.10200279
M3 - Conference paper
AN - SCOPUS:85169299920
T3 - International Conference on Ubiquitous and Future Networks, ICUFN
SP - 386
EP - 388
BT - ICUFN 2023 - 14th International Conference on Ubiquitous and Future Networks
PB - IEEE Computer Society
T2 - 14th International Conference on Ubiquitous and Future Networks, ICUFN 2023
Y2 - 4 July 2023 through 7 July 2023
ER -