TY - JOUR
T1 - Toward increasing packet diversity for relaying LT fountain codes in wireless sensor networks
AU - Apavatjrut, Anya
AU - Goursaud, Claire
AU - Jaffres-Runser, Katia
AU - Comaniciu, Cristina
AU - Gorce, Jean Marie
PY - 2011/1
Y1 - 2011/1
N2 - 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.
AB - 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.
KW - Diversity
KW - LT code
KW - fountain code
KW - linear networks
KW - relaying algorithms
KW - wireless sensor network
UR - http://www.scopus.com/inward/record.url?scp=79551685535&partnerID=8YFLogxK
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U2 - 10.1109/LCOMM.2010.111910.101692
DO - 10.1109/LCOMM.2010.111910.101692
M3 - Article
AN - SCOPUS:79551685535
SN - 1089-7798
VL - 15
SP - 52
EP - 54
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 1
M1 - 5648738
ER -