Study on the Achievable Sum-Rate in the Uplink of Cloud Radio Access Networks with Finite-Capacity Fronthaul Links 


Vol. 42,  No. 9, pp. 1822-1831, Sep.  2017
10.7840/kics.2017.42.9.1822


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  Abstract

This work considers the uplink of a cloud radio access network (C-RAN). Since digital fronthaul links that connects remote radio heads (RRHs) to baseband processing unit (BBU) have finite capacity, there have been a lot of research works that studied advanced fronthaul quantization and compression techniques to make an efficient use of fronthaul links. In this work, some advanced fronthaul compression technqiues inspired by network information theory are introduced with some performance evaluation results presented. Basic point-to-point (P2P) compression technique is first reviewed in which the decompression of the signals received from different RRHs are separately carried out, and then distributed fronthaul compression technique is presented which leverages the statistical correlation among the received signals of different RRHs. For P2P compression, we consider both per-sample uniform scalar quantizer and Gaussian vector quantizer based on rate-distortion theoretic analysis.

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  Cite this article

[IEEE Style]

D. Yu, J. Lee, J. Kim, S. Park, "Study on the Achievable Sum-Rate in the Uplink of Cloud Radio Access Networks with Finite-Capacity Fronthaul Links," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 9, pp. 1822-1831, 2017. DOI: 10.7840/kics.2017.42.9.1822.

[ACM Style]

Daeseong Yu, Jinwoo Lee, Junbeom Kim, and Seok-Hwan Park. 2017. Study on the Achievable Sum-Rate in the Uplink of Cloud Radio Access Networks with Finite-Capacity Fronthaul Links. The Journal of Korean Institute of Communications and Information Sciences, 42, 9, (2017), 1822-1831. DOI: 10.7840/kics.2017.42.9.1822.

[KICS Style]

Daeseong Yu, Jinwoo Lee, Junbeom Kim, Seok-Hwan Park, "Study on the Achievable Sum-Rate in the Uplink of Cloud Radio Access Networks with Finite-Capacity Fronthaul Links," The Journal of Korean Institute of Communications and Information Sciences, vol. 42, no. 9, pp. 1822-1831, 9. 2017. (https://doi.org/10.7840/kics.2017.42.9.1822)

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