TY - JOUR
T1 - Topology-Aware Network Coding for Wireless Multicast
AU - Chen, Yu Jia
AU - Wang, Li-Chun
AU - Wang, Kuo-Chen
AU - Ho, Wan Ling
PY - 2018/12/1
Y1 - 2018/12/1
N2 - In this paper, we present a topology-aware network coding (TANC) technique for wireless multicast systems aiming at reducing packet retransmissions in a lossy propagation environment. In addition to radio channel impacts, packet loss may result from traffic congestion, thereby yielding different retransmission requests. In such a wireless network coding multicast environment, what is the best packet combination to minimize the packet retransmissions for a number of users? We make progress on this problem by taking advantage of the network topology information to select the appropriate lost encoded packets in the encoding phase. We leverage the capability of software-defined networking controller to construct the global network topology in the proposed TANC scheme. Experimental results show that the proposed TANC scheme can reduce 52.4% of packet retransmissions compared to the existing random linear network coding in different environments, including various numbers of uncoded packets, network nodes, and packet loss probabilities.
AB - In this paper, we present a topology-aware network coding (TANC) technique for wireless multicast systems aiming at reducing packet retransmissions in a lossy propagation environment. In addition to radio channel impacts, packet loss may result from traffic congestion, thereby yielding different retransmission requests. In such a wireless network coding multicast environment, what is the best packet combination to minimize the packet retransmissions for a number of users? We make progress on this problem by taking advantage of the network topology information to select the appropriate lost encoded packets in the encoding phase. We leverage the capability of software-defined networking controller to construct the global network topology in the proposed TANC scheme. Experimental results show that the proposed TANC scheme can reduce 52.4% of packet retransmissions compared to the existing random linear network coding in different environments, including various numbers of uncoded packets, network nodes, and packet loss probabilities.
KW - Network coding (NC)
KW - packet retransmission
KW - software-defined networks
UR - http://www.scopus.com/inward/record.url?scp=85043461073&partnerID=8YFLogxK
U2 - 10.1109/JSYST.2018.2802493
DO - 10.1109/JSYST.2018.2802493
M3 - Article
AN - SCOPUS:85043461073
VL - 12
SP - 3683
EP - 3692
JO - IEEE Systems Journal
JF - IEEE Systems Journal
SN - 1932-8184
IS - 4
M1 - 8310622
ER -