Before/after precoded massive MIMO in cloud radio access networks

Sangkyu Park, Chan-Byoung Chae, Saewoong Bahk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper, we investigate two types of IQ-data transfer methods for cloud MIMO network operation. They are termed 'after-precoding' and 'before-precoding.' We formulate a cloud massive MIMO operation problem that includes the best IQ-transfer method and beamforming strategy (beamforming technique, the number of concurrently receiving users, the number of used antennas for transmission) to maximize the ergodic sum-rates under the limited capacity of the digital unit (DU)-radio unit (RU) link. Based on our proposed solution, the optimal numbers of users and antennas are simultaneously chosen. Numerical results confirm the sum-rate gain is greater when adaptive 'after/before-precoding' method is available than when only 'after-precoding' IQ-data transfer is available.

Original languageEnglish
Title of host publication2013 IEEE International Conference on Communications Workshops, ICC 2013
Pages169-173
Number of pages5
DOIs
Publication statusPublished - 2013 Dec 27
Event2013 IEEE International Conference on Communications Workshops, ICC 2013 - Budapest, Hungary
Duration: 2013 Jun 92013 Jun 13

Publication series

Name2013 IEEE International Conference on Communications Workshops, ICC 2013

Other

Other2013 IEEE International Conference on Communications Workshops, ICC 2013
CountryHungary
CityBudapest
Period13/6/913/6/13

Fingerprint

Data transfer
Beamforming
MIMO systems
Antennas
Telecommunication links

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this

Park, S., Chae, C-B., & Bahk, S. (2013). Before/after precoded massive MIMO in cloud radio access networks. In 2013 IEEE International Conference on Communications Workshops, ICC 2013 (pp. 169-173). [6649222] (2013 IEEE International Conference on Communications Workshops, ICC 2013). https://doi.org/10.1109/ICCW.2013.6649222
Park, Sangkyu ; Chae, Chan-Byoung ; Bahk, Saewoong. / Before/after precoded massive MIMO in cloud radio access networks. 2013 IEEE International Conference on Communications Workshops, ICC 2013. 2013. pp. 169-173 (2013 IEEE International Conference on Communications Workshops, ICC 2013).
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Park, S, Chae, C-B & Bahk, S 2013, Before/after precoded massive MIMO in cloud radio access networks. in 2013 IEEE International Conference on Communications Workshops, ICC 2013., 6649222, 2013 IEEE International Conference on Communications Workshops, ICC 2013, pp. 169-173, 2013 IEEE International Conference on Communications Workshops, ICC 2013, Budapest, Hungary, 13/6/9. https://doi.org/10.1109/ICCW.2013.6649222

Before/after precoded massive MIMO in cloud radio access networks. / Park, Sangkyu; Chae, Chan-Byoung; Bahk, Saewoong.

2013 IEEE International Conference on Communications Workshops, ICC 2013. 2013. p. 169-173 6649222 (2013 IEEE International Conference on Communications Workshops, ICC 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Park S, Chae C-B, Bahk S. Before/after precoded massive MIMO in cloud radio access networks. In 2013 IEEE International Conference on Communications Workshops, ICC 2013. 2013. p. 169-173. 6649222. (2013 IEEE International Conference on Communications Workshops, ICC 2013). https://doi.org/10.1109/ICCW.2013.6649222