Ecole d'ingénieur et centre de recherche en télécommunications

Design and implementation of a single-frequency mesh network using OpenAirInterface

Kaltenberger, Florian; Ghaffar, Rizwan; Knopp, Raymond; Anouar, Hicham; Bonnet, Christian

EURASIP Journal on Wireless Communications and Networking, 2010, Vol. 2010, Article ID 719523

 OpenAirInterface is an experimental open-source real-time hardware and software platform for experimentation in wireless communications and signal processing. With the help of OpenAirInterface, researchers can demonstrate novel ideas quickly and verify them in a realistic environment. Its current implementation provides a full open-source software modem comprising physical and link layer functionalities for cellular and mesh network topologies. The physical (PHY) layer of the platform targets fourth generation wireless networks and thus uses orthogonal frequency division multiple access (OFDMA) together with multiple-input multiple-output (MIMO) techniques. The current hardware supports 5 MHz bandwidth and two transmit/receive antennas. The media access (MAC) layer of the platform supports an abundant two-way signaling for enabling collaboration, scheduling protocols, as well as traffic and channel measurements. In this paper, we focus on the mesh topology and show how to implement a single-frequency mesh network with OpenAirInterface. The key ingredients to enable such a network are a dual-stream MIMO receiver structure and a distributed network synchronization algorithm. We show how to implement these two algorithms in real-time on the OpenAirInterface platform. Further more, we provide results from field trials and compare them to the simulation results.

Document Doi Bibtex

Type:Journal
Langue:English
Date:
Département:Communications Mobiles
Eurecom ref:3002
Copyright: © Hindawi. Personal use of this material is permitted. The definitive version of this paper was published in EURASIP Journal on Wireless Communications and Networking, 2010, Vol. 2010, Article ID 719523 and is available at : http://dx.doi.org/10.1155/2010/719523
Bibtex: @article{EURECOM+3002, doi = {http://dx.doi.org/10.1155/2010/719523}, year = {2010}, month = {05}, title = {{D}esign and implementation of a single-frequency mesh network using {O}pen{A}ir{I}nterface}, author = {{K}altenberger, {F}lorian and {G}haffar, {R}izwan and {K}nopp, {R}aymond and {A}nouar, {H}icham and {B}onnet, {C}hristian }, journal = {{EURASIP} {J}ournal on {W}ireless {C}ommunications and {N}etworking, 2010, {V}ol. 2010, {A}rticle {ID} 719523}, url = {http://www.eurecom.fr/publication/3002} }
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