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Fronthaul Data Compression for Uplink CoMP in Cloud Radio Access Network (C-RAN)

Qi, Y, Shakir, MZ, Imran, MA, Qaraqe, KA, Quddus, AU and Tafazolli, R (2016) Fronthaul Data Compression for Uplink CoMP in Cloud Radio Access Network (C-RAN) Transactions on Emerging Telecommunications Technologies, 27 (10). pp. 1409-1425.

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Abstract

The design of efficient wireless fronthaul connections for future heterogeneous networks incorporating emerging paradigms such as cloud radio access network (C-RAN) has become a challenging task that requires the most effective utilization of fronthaul network resources. In this paper, we propose to use distributed compression to reduce the fronthaul traffic in uplink Coordinated Multi-Point (CoMP) for C-RAN. 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 message are conducted in a successive manner. The essence of this approach is the optimization of the distributed compression using an iterative algorithm to achieve maximal user rate with a given fronthaul rate. In other words, for a target user rate the generated fronthaul traffic is minimized. Moreover, joint decompression and decoding is studied and an iterative optimization algorithm is devised accordingly. Finally, the analysis is extended to multi-user case and our results reveal that, in both dense and ultra-dense urban deployment scenarios, the usage of distributed compression can efficiently reduce the required fronthaul rate and a further reduction is obtained with joint operation.

Item Type: Article
Subjects : Electronic Engineering
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
AuthorsEmailORCID
Qi, YUNSPECIFIEDUNSPECIFIED
Shakir, MZUNSPECIFIEDUNSPECIFIED
Imran, MAUNSPECIFIEDUNSPECIFIED
Qaraqe, KAUNSPECIFIEDUNSPECIFIED
Quddus, AUUNSPECIFIEDUNSPECIFIED
Tafazolli, RUNSPECIFIEDUNSPECIFIED
Date : October 2016
Identification Number : 10.1002/ett.3088
Copyright Disclaimer : This is the peer reviewed version of the following article: Fronthaul Data Compression for Uplink CoMP in Cloud Radio Access Network (C-RAN), which has been published in final form at http://doi.org/10.1002/ett.3088. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Depositing User : Symplectic Elements
Date Deposited : 08 Jul 2016 09:47
Last Modified : 07 Dec 2016 08:56
URI: http://epubs.surrey.ac.uk/id/eprint/811144

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