TY - JOUR
T1 - Energy efficient two-tier network-coded relaying systems considering processing energy costs
AU - Qi, Nan
AU - Xiao, Ming
AU - Tsiftsis, Theodoros A.
AU - Yao, Rugui
AU - Mumtaz, Shahid
N1 - Publisher Copyright:
© 1967-2012 IEEE.
PY - 2019/1
Y1 - 2019/1
N2 - In this paper, a two-tier network coding (TNC) scheme is proposed for the multi-user multi-relay transmission scenarios. Specifically, TNC is conducted at each individual relay, where two groups of source messages are combined into one network codeword that is forwarded to dual destinations. Finally, two groups of source messages are jointly recovered from different network codewords at the destinations. Both analytical and simulation results demonstrate that the proposed scheme outperforms the current state of art in terms of the energy efficiency (EE). In addition, the impacts of multiple parameters, including the number of users, SNR and relay locations on the average EE have been demonstrated, which provide valuable insights for the system designs of future wireless networks.
AB - In this paper, a two-tier network coding (TNC) scheme is proposed for the multi-user multi-relay transmission scenarios. Specifically, TNC is conducted at each individual relay, where two groups of source messages are combined into one network codeword that is forwarded to dual destinations. Finally, two groups of source messages are jointly recovered from different network codewords at the destinations. Both analytical and simulation results demonstrate that the proposed scheme outperforms the current state of art in terms of the energy efficiency (EE). In addition, the impacts of multiple parameters, including the number of users, SNR and relay locations on the average EE have been demonstrated, which provide valuable insights for the system designs of future wireless networks.
KW - Energy efficiency
KW - outage probability
KW - relay forwarding
KW - two-tier network coding
UR - http://www.scopus.com/inward/record.url?scp=85056708043&partnerID=8YFLogxK
U2 - 10.1109/TVT.2018.2881653
DO - 10.1109/TVT.2018.2881653
M3 - 文章
AN - SCOPUS:85056708043
SN - 0018-9545
VL - 68
SP - 909
EP - 1003
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 1
M1 - 8537924
ER -