How to Solve the Fronthaul Traffic Congestion Problem in H-CRAN?

Qi, Y., Shakir, M. Z., Imran, M. A. , Quddus, A. and Tafazolli, R. (2016) How to Solve the Fronthaul Traffic Congestion Problem in H-CRAN? In: 2016 IEEE International Conference on Communications Workshops (ICC), Kuala Lumpur, Malaysia, 23-27 May 2016, pp. 240-245. ISBN 9781509004485 (doi: 10.1109/ICCW.2016.7503794)

Abstract

The design of efficient wireless fronthaul connections for future heterogeneous networks incorporating emerging paradigms such as heterogeneous cloud radio access network (H-CRAN) has become a challenging task that requires the most effective utilization of fronthaul network resources. In this paper, we propose and analyze possible solutions to facilitate the fronthaul traffic congestion in the scenario of Coordinated Multi-Point (CoMP) for 5G cellular traffic which is expected to reach ZetaByte by 2017. In particular, we propose to use distributed compression to reduce the fronthaul traffic for H-CRAN. Unlike the conventional approach where each coordinating point quantizes and forwards its own observation to the processing centre, these observations are compressed before forwarding. At the processing centre, the decompression of the observations and the decoding of the user messages are conducted in a joint manner. Our results reveal that, in both dense and ultra-dense urban small cell deployment scenarios, the usage of distributed compression can efficiently reduce the required fronthaul rate by more than 50% via joint operation.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Imran, Professor Muhammad
• Authors: Qi, Y., Shakir, M. Z., Imran, M. A., Quddus, A., and Tafazolli, R.
• College/School: College of Science and Engineering > School of Engineering
• ISBN: 9781509004485
• Copyright Holders: Copyright © 2016 IEEE
• First Published: First published in 2016 IEEE International Conference on Communications Workshops (ICC): 240-245
• Publisher Policy: Reproduced in accordance with the publisher copyright policy