Relay-assisted Network Coding Multicast in the Presence of Neighbours

Hana Khamfroush, Daniel Enrique Lucani Roetter, Peyman Pahlevani, Frank Fitzek, João Barros

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1 Citationer (Scopus)


We study the problem of minimizing the cost of packet transmission from a source to two receivers with the help of a relay and using network coding in wireless mesh networks consisting of many active neighbours sharing the same channel. The cost minimization problem is modeled as a Markov Decision Process (MDP) and analysed under different network conditions. Two simple heuristics are proposed to estimate the appropriate time for activating the relay to provide close-to-optimal performance. Our numerical results show that a judicious network coding enabled relay can bring up to 2.9x gains in the presence of active neighbours compared to multicasting directly from the source. We further show that in scenarios which the links between relay and destinations are not better than the links between source and destinations, a relay can still provide up to 1.7x gain.
TitelEuropean Wireless 2015; 21th European Wireless Conference; Proceedings of
Antal sider7
ForlagVDE Verlag GMBH
ISBN (Trykt)978-3-8007-3976-9
StatusUdgivet - 2015
BegivenhedThe 21th European Wireless (EW) Conference - Budapest, Ungarn
Varighed: 20 maj 201522 maj 2015
Konferencens nummer: 21


KonferenceThe 21th European Wireless (EW) Conference

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