Diversity coded 5G fronthaul wireless networks

In this paper we study the application of Diversity Coding to enable near-instantaneous recovery from link failures in 5G wireless Cloud Radio Access Network (C-RAN) networks. We focus on networks where remote radio heads in a C-RAN are connected to the baseband unit in two hierarchical tiers with optical and wireless fronthaul links. In order to avoid retransmissions and re-routing delays due to link failures in wireless links, we investigate the use Diversity Coding where a feed-forward network design uses forward error control across spatially diverse paths to enable reliable networking with minimal delay.

[1]  Richard D. Gitlin,et al.  Diversity coding: using error control for self-healing in communication networks , 1990, Proceedings. IEEE INFOCOM '90: Ninth Annual Joint Conference of the IEEE Computer and Communications Societies@m_The Multiple Facets of Integration.

[2]  Xiaodan Hu,et al.  Hitless recovery from link failures in networks with arbitrary topology , 2011, 2011 Information Theory and Applications Workshop.

[3]  Deep Medhi,et al.  Routing, flow, and capacity design in communication and computer networks , 2004 .

[4]  Richard D. Gitlin,et al.  Diversity coding for transparent self-healing and fault-tolerant communication networks , 1993, IEEE Trans. Commun..

[5]  Inkyu Lee,et al.  Joint Design of Fronthaul and Access Links for C-RAN With Wireless Fronthauling , 2016, IEEE Signal Processing Letters.

[6]  Xiaodan Hu,et al.  Recovery from Link Failures in Networks with Arbitrary Topology via Diversity Coding , 2011, 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011.