Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - An efficient network coding scheme with symbol combining
T2 - performance evaluation, optimization, and comparisons
AU - Chiti, Francesco
AU - Fantacci, Romano
AU - Tassi, Andrea
PY - 2013/3
Y1 - 2013/3
N2 - In this paper, we investigate the performance advantages achieved by using a symbol combining (SC) approach in a random linear network coding (RLNC) scheme for broadcast communications over lossy channels. In particular, the focus is on a modified RLNC scheme that makes use of the repeated transmissions of each data symbol belonging to the same coded packet to implement the SC approach at the receiving ends. By considering the mean number of transmissions and energy consumption for each coded packet as objective metrics, two optimization procedures are proposed and compared in this paper. We consider a broadcast network model where an access point (AP) has to broadcast coded packets to a set of receiving nodes. In addition, the analysis presented in this paper is extended to broadcast communications in butterfly topology networks. For all the considered scenarios, the better behavior of the SC RLNC scheme results is clearly evident in comparison with the basic RLNC, without requiring additional implementation complexity at each receiving end.
AB - In this paper, we investigate the performance advantages achieved by using a symbol combining (SC) approach in a random linear network coding (RLNC) scheme for broadcast communications over lossy channels. In particular, the focus is on a modified RLNC scheme that makes use of the repeated transmissions of each data symbol belonging to the same coded packet to implement the SC approach at the receiving ends. By considering the mean number of transmissions and energy consumption for each coded packet as objective metrics, two optimization procedures are proposed and compared in this paper. We consider a broadcast network model where an access point (AP) has to broadcast coded packets to a set of receiving nodes. In addition, the analysis presented in this paper is extended to broadcast communications in butterfly topology networks. For all the considered scenarios, the better behavior of the SC RLNC scheme results is clearly evident in comparison with the basic RLNC, without requiring additional implementation complexity at each receiving end.
KW - Delay and energy optimization
KW - lossy wireless networks
KW - network coding (NC)
KW - SYSTEMS
KW - FLOW
KW - ARQ
U2 - 10.1109/TVT.2012.2230283
DO - 10.1109/TVT.2012.2230283
M3 - Journal article
VL - 62
SP - 1267
EP - 1275
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
SN - 0018-9545
IS - 3
ER -