Traffic engineering for software-defined radio access networks

Author

Farmanbar, Hamid ; Hang Zhang

Author_Institution

Canada Res. Centre, Huawei, Ottawa, ON, Canada

fYear

2014

fDate

5-9 May 2014

Firstpage

1

Lastpage

7

Abstract

We consider central traffic engineering in a software-defined radio access network (SD-RAN) consisting of routers, wireless access nodes, and wired/wireless links. We present a multi-path traffic engineering formulation for downlink transmission considering both backhaul and wireless access constraints. We show large throughput and quality of experience (QoE) gains over traditional single-path transmission. In order to increase robustness against unpredicted changes in the radio access network, we propose using link buffer status as feedback to traffic engineering and present a heuristic method for traffic engineering to adjust flow allocations according to buffer status observation.

Keywords

quality of experience; radio access networks; software radio; telecommunication traffic; SD-RAN; central traffic engineering; link buffer status; multi-path traffic engineering formulation; quality of experience; software-defined radio access networks; wireless access nodes; Bandwidth; Linear programming; Radio access networks; Resource management; Routing; Throughput; Wireless communication; buffer status feedback; flow splitting; multi-path routing; phy abstraction; radio access network; traffic engineering;

fLanguage

English

Publisher

ieee

Conference_Titel

Network Operations and Management Symposium (NOMS), 2014 IEEE

Conference_Location

Krakow

Type

conf

DOI

10.1109/NOMS.2014.6838421

Filename

6838421