Open AccessMulti‐block FEC for reprogramming wireless sensor networks
Author(s) -
Park Taehyun,
Kim Seung Young,
Kwon GuIn
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.1050
Subject(s) - computer science , block (permutation group theory) , frame (networking) , computer network , wireless sensor network , reduction (mathematics) , code (set theory) , node (physics) , error detection and correction , forward error correction , algorithm , decoding methods , engineering , mathematics , geometry , set (abstract data type) , structural engineering , programming language
Reprogramming a wireless sensor network requires accurate broadcast of the code to its all nodes. A multi‐block forward error correction technique was used, in which blocks were encoded using a rateless code, such as a Luby transform (LT) code. When relaying data, a node salvages any error‐free blocks from a corrupted frame and uses them in constructing a new frame. This creates diversity in the data relayed by the nodes, giving downstream nodes an improved chance of obtainining a subset version of any block. Experiments show that this approach achieves significant reduction in network traffic.