TY - JOUR
T1 - Opportunistic Fountain Coding with Coordinative Routing
AU - Peng, Tong
AU - Lambotharan, Sangarapillai
AU - Zheng, Gan
AU - Shikh-Bahaei, Mohammad
N1 - Funding Information:
This work was supported in part by the Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/P022723/1 and Grant EP/R006385/1, and in part by the Basic Scientific Research Fund of Provincial Universities under Grant 2021J016.
Publisher Copyright:
© 2012 IEEE.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - Fountain codes are widely employed to improve reliability and efficiency in wireless communication systems due to their simple coding mechanisms. In this letter, we propose an opportunistic decoding and recoding mechanism with coordinative routing algorithm for fountain codes to improve the expected transmission counts (ETX) performance and to reduce computational complexity of fountain decoding at each relay in multi-hop wireless sensor networks. The full recovery in existing cooperative fountain coded networks is replaced by a new partial decoding and recoding mechanism in which both the recovered and the unrecovered packets at the intermediate nodes are considered as recoding candidates. Numerical results show that the proposed algorithm is superior to the existing opportunistic routing-based fountain code schemes.
AB - Fountain codes are widely employed to improve reliability and efficiency in wireless communication systems due to their simple coding mechanisms. In this letter, we propose an opportunistic decoding and recoding mechanism with coordinative routing algorithm for fountain codes to improve the expected transmission counts (ETX) performance and to reduce computational complexity of fountain decoding at each relay in multi-hop wireless sensor networks. The full recovery in existing cooperative fountain coded networks is replaced by a new partial decoding and recoding mechanism in which both the recovered and the unrecovered packets at the intermediate nodes are considered as recoding candidates. Numerical results show that the proposed algorithm is superior to the existing opportunistic routing-based fountain code schemes.
KW - Codes
KW - Complexity theory
KW - coordinative forwarding.
KW - Encoding
KW - Maximum likelihood decoding
KW - opportunistic routing
KW - Partial fountain decoding
KW - Relays
KW - Routing
KW - Wireless sensor networks
UR - http://www.scopus.com/inward/record.url?scp=85124189033&partnerID=8YFLogxK
U2 - 10.1109/LWC.2022.3147601
DO - 10.1109/LWC.2022.3147601
M3 - Article
AN - SCOPUS:85124189033
SN - 2162-2337
VL - 11
SP - 851
EP - 855
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 4
ER -