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      Robust Baseband Compression Against Congestion in Packet-Based Fronthaul Networks Using Multiple Description Coding

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          Abstract

          In modern implementations of Cloud Radio Access Network (C-RAN), the fronthaul transport network will often be packet-based and it will have a multi-hop architecture built with general-purpose switches using network function virtualization (NFV) and software-defined networking (SDN). This paper studies the joint design of uplink radio and fronthaul transmission strategies for a C-RAN with a packet-based fronthaul network. To make an efficient use of multiple routes that carry fronthaul packets from remote radio heads (RRHs) to cloud, as an alternative to more conventional packet-based multi-route reception or coding, a multiple description coding (MDC) strategy is introduced that operates directly at the level of baseband signals. MDC ensures an improved quality of the signal received at the cloud in conditions of low network congestion, i.e., when more fronthaul packets are received within a tolerated deadline. The advantages of the proposed MDC approach as compared to the traditional path diversity scheme are validated via extensive numerical results.

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          Most cited references 28

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          Cloud RAN for Mobile Networks—A Technology Overview

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            Multiple description coding: compression meets the network

             V.K. Goyal (2001)
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              Content-Centric Sparse Multicast Beamforming for Cache-Enabled Cloud RAN

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                Author and article information

                Journal
                Entropy (Basel)
                Entropy (Basel)
                entropy
                Entropy
                MDPI
                1099-4300
                24 April 2019
                April 2019
                : 21
                : 4
                Affiliations
                [1 ]Division of Electronic Engineering, Chonbuk National University, Jeonju 54896, Korea
                [2 ]Department of Informatics, King’s College London, London WC2R2NA, UK
                [3 ]Department of Electrical Engineering, Technion, Haifa 32000, Israel
                Author notes
                [* ]Correspondence: seokhwan@ 123456jbnu.ac.kr ; Tel.: +82-63-270-2357
                Article
                entropy-21-00433
                10.3390/e21040433
                7514922
                © 2019 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

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