Title:Hybrid ARQ Based on Rateless Coding for Wireless Sensor Networks
VOLUME: 1 ISSUE: 2
Author(s):Lorenzo Favalli, Pietro Savazzi, Emanuele Goldoni and Matteo Lanati
Affiliation:EUCENTRE (European Centre for Training and Research in Earthquake Engineering), Via Ferrata, 1, 27100 Pavia, Italy
Keywords:Component, hybrid ARQ, rateless coding, WSN, incremental redundancy, chase combinig, TDMA.
Abstract:This paper shows an Incremental Redundancy Hybrid automatic repeat request (HARQ) scheme, based on
rateless coding, for wireless sensor network (WSN) protocols. The proposed approach proved to be effective under energy
consumption constraints, making it suitable for possible applications to WSNs. Moreover, the use of a rateless coding
scheme increases the average throughput by limiting the length of retransmitted packets. Performance are evaluated
through simulations in terms of average goodput and average energy consumption, comparing the presented solution with
the traditional ARQ scheme employed in the IEEE 802.15.4 standard for WSNs. Results have been obtained using a novel
network simulation model for rateless code transmissions based on information theoretic measures.
