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

8 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
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

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Fingerprint Dive into the research topics of 'Before/after precoded massive MIMO in cloud radio access networks'. Together they form a unique fingerprint.

  • 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