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Multi-objective evolutionary approach to coding-link cost trade-offs in network coding

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2 Author(s)
Ahn, C.W. ; Coll. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea ; Yoo, J.-C.

Presented is a multi-objective evolutionary network coding algorithm which jointly handles the coding cost and link cost while achieving the target multicast rate in network coding. To this end, a generalised multi-objective fitness function is formulated first. A modified non-dominated sorting scheme is then developed to account for the unequal importance of the two objectives. Lastly, a diversity-preserving crowding method is devised to maintain the diversity of solutions in both the objective and decision spaces. The experimental results demonstrate the effectiveness of the proposed approach.

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Electronics Letters  (Volume:48 ,  Issue: 25 )