TY - GEN
T1 - A Cluster-Based Transmit Diversity Scheme for Asynchronous Joint Transmissions in Private Networks
AU - Kim, Kyeong Jin
AU - Guo, Jianlin
AU - Orlik, Philip V.
AU - Nagai, Yukimasa
AU - Poor, H. Vincent
N1 - Funding Information:
K. J. Kim, J. Guo, and P. V. Orlik are with Mitsubishi Electric Research Laboratories (MERL), Cambridge, MA 02139 USA Y. Nagai is with Mitsubishi Electric Corp., Japan H. V. Poor is with the Department of Electrical Engineering, Princeton University, Princeton, NJ 08544 USA This work was supported in part by the U.S. National Science Foundation under Grant CCF-1908308.
Publisher Copyright:
© 2021 IEEE.
PY - 2021/6
Y1 - 2021/6
N2 - In this paper, a multiple cluster-based transmission diversity scheme is proposed for asynchronous joint transmissions (JT) in private networks, in which the use of multiple clusters or small cells is preferable to increase transmission speeds, reduce latency, and bring transmissions closer to the users. To increase the spectral efficiency and coverage, and to achieve flexible spatial degrees of freedom, a distributed remote radio unit system (dRRUS) is installed in each of the clusters. When the dRRUS is disposed in the private environments, it will be associated with multipath-rich and asynchronous delay propagation. Taking into account of this unique environment of private networks, asynchronous multiple signal reception is considered in the development of operation at the remote radio units to make an intersymbol interference free distributed cyclic delay diversity (dCDD) scheme for JT to achieve a full transmit diversity gain without full channel state information. A spectral efficiency of the proposed dCDD-based JT is analyzed by deriving the closed- form expression, and then compared with link-level simulations for non-identically distributed frequency selective fading over the entire private network.
AB - In this paper, a multiple cluster-based transmission diversity scheme is proposed for asynchronous joint transmissions (JT) in private networks, in which the use of multiple clusters or small cells is preferable to increase transmission speeds, reduce latency, and bring transmissions closer to the users. To increase the spectral efficiency and coverage, and to achieve flexible spatial degrees of freedom, a distributed remote radio unit system (dRRUS) is installed in each of the clusters. When the dRRUS is disposed in the private environments, it will be associated with multipath-rich and asynchronous delay propagation. Taking into account of this unique environment of private networks, asynchronous multiple signal reception is considered in the development of operation at the remote radio units to make an intersymbol interference free distributed cyclic delay diversity (dCDD) scheme for JT to achieve a full transmit diversity gain without full channel state information. A spectral efficiency of the proposed dCDD-based JT is analyzed by deriving the closed- form expression, and then compared with link-level simulations for non-identically distributed frequency selective fading over the entire private network.
KW - Private networks
KW - distributed cyclic delay diversity
KW - joint transmission
KW - spectral efficiency
UR - http://www.scopus.com/inward/record.url?scp=85115705756&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85115705756&partnerID=8YFLogxK
U2 - 10.1109/ICC42927.2021.9500522
DO - 10.1109/ICC42927.2021.9500522
M3 - Conference contribution
AN - SCOPUS:85115705756
T3 - IEEE International Conference on Communications
BT - ICC 2021 - IEEE International Conference on Communications, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Conference on Communications, ICC 2021
Y2 - 14 June 2021 through 23 June 2021
ER -