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Article Dans Une Revue IEEE Communications Letters Année : 2011

Toward Increasing Packet Diversity for Relaying LT Fountain Codes in Wireless Sensor Networks

Apavatjrut Anya
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Katia Jaffrès-Runser
Cristina Comaniciu
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Jean-Marie Gorce

Résumé

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 and lower complexity Luby Transform code in a linear network. Results are provided herein for a linear network assuming uniform imperfect channel states.
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Dates et versions

hal-00542009 , version 1 (01-12-2010)

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Citer

Apavatjrut Anya, Claire Goursaud, Katia Jaffrès-Runser, Cristina Comaniciu, Jean-Marie Gorce. Toward Increasing Packet Diversity for Relaying LT Fountain Codes in Wireless Sensor Networks. IEEE Communications Letters, 2011, pp.CL2010-1692. ⟨10.1109/LCOMM.2010.111910.101692⟩. ⟨hal-00542009⟩
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