Towards increasing packet diversity for relaying LT Fountain Codes in Wireless Sensor Networks

Anya Apavatjrut 1, * Claire Goursaud 1 Katia Jaffrès-Runser 2, 1 Cristina Comaniciu 2 Jean-Marie Gorce 1
* Auteur correspondant
1 SWING - Smart Wireless Networking
Inria Grenoble - Rhône-Alpes, CITI - CITI Centre of Innovation in Telecommunications and Integration of services
2 WNET - Wireless NETworks laboratory
Abstract : Diversity is a powerful means to increase the transmission performance of wireless communications. For the case of fountain codes relaying, it has been shown previously that introducing diversity is also beneficial since it counteracts transmission losses on the channel. Instead of simply hop-by-hop forwarding information, each sensor node diversifies the information flow using XOR combinations of stored packets. This approach has been shown to be efficient for random linear fountain codes. However, random linear codes exhibit high decoding complexity. In this paper, we propose diversity increased relaying strategies for the more realistic Luby Transform code in order to maintain high transmission performance with low decoding computational complexity in a linear network. Results are provided herein for a linear network assuming uniform imperfect channel states.
Keywords : diversité algorithmes de relayage relayage code fontaine LT réseau des capteursdiversity relaying algorithms fountain code LT code wireless sensor network linear networks
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Rapport
[Research Report] RR-7231, INRIA. 2010, pp.8
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Dernière modification le : samedi 27 octobre 2018 - 01:20:19
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Anya Apavatjrut, Claire Goursaud, Katia Jaffrès-Runser, Cristina Comaniciu, Jean-Marie Gorce. Towards increasing packet diversity for relaying LT Fountain Codes in Wireless Sensor Networks. [Research Report] RR-7231, INRIA. 2010, pp.8. 〈inria-00464079〉

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