Compressed cooperative reception for the uplink of C-RAN with wireless fronthaul

Seok Hwan Park, Kyoung Jae Lee, Changick Song, Inkyu Lee

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

2 Citations (Scopus)

Abstract

This work deals with a joint design of radio access and fronthaul links for the uplink of cloud radio access network (C-RAN) equipped with wireless fronthaul link. A conventional uplink system based on per-cell decode-and-forward (DF) relaying, in which the message sent by each user equipment (UE) is decoded by the closest remote radio head (RRH) and forwarded to a baseband processing unit (BBU) via wireless fronthaul link, is first reviewed. Since decoding at each RRH might be affected by the interference signals of the other UEs, we present a compress-and-forward (CF) based cooperative reception scheme whereby each RRH quantizes and compresses its received signal and transmits the quantization output to the BBU through the fronthaul link. For the both approaches based on the DF and CF relaying, we tackle the problem of maximizing the sum-rate of the UEs subject to the per-UE and per-RRH power constraints. Link-level simulation results are reported that validate the advantages of the CF-based cooperative scheme compared to the DF-based per-cell reception scheme.

Original languageEnglish
Title of host publication2017 International Symposium on Wireless Communication Systems, ISWCS 2017
PublisherVDE Verlag GmbH
Pages211-215
Number of pages5
Volume2017-August
ISBN (Electronic)9781538629130
DOIs
Publication statusPublished - 2017 Nov 14
Event2017 International Symposium on Wireless Communication Systems, ISWCS 2017 - Bologna, Italy
Duration: 2017 Aug 282017 Aug 31

Other

Other2017 International Symposium on Wireless Communication Systems, ISWCS 2017
CountryItaly
CityBologna
Period17/8/2817/8/31

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Keywords

  • C-RAN
  • compress-and-forward
  • decode-and-forward
  • wireless fronthaul

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

Cite this

Park, S. H., Lee, K. J., Song, C., & Lee, I. (2017). Compressed cooperative reception for the uplink of C-RAN with wireless fronthaul. In 2017 International Symposium on Wireless Communication Systems, ISWCS 2017 (Vol. 2017-August, pp. 211-215). [8108112] VDE Verlag GmbH. https://doi.org/10.1109/ISWCS.2017.8108112