Bidirectional Network Coding in Wireless Networks

Stephan M. Günther, Maurice Leclaire, Maximilian Riemensberger, Georg Carle, Wolfgang Utschick

Abstract: In this paper we introduce our Network Coding Module (NCM) for bidirectional random linear network coding in wireless networks. It is based on our low-level frame injection library libmoep, which allows to easily implement custom link-layer protocols. Originally intended for IEEE 802.11 only, it meanwhile also supports wired Ethernet-based networks. We evaluate the NCM in a wireless testbed with and without relay. For both cases we derive optimal packet injection rates and perform tests with TCP. The source code of this paper is made available for download under the GPLv2 at [1].