11-04-2013 дата публикации
Номер: US20130089323A1
A method for optimal combined 2R/3R regenerators placement for optical transmission includes determining an optimal placement of multiple 2R and 3R regenerators that minimizes bit error rate BER at a destination node, determining an optimal number of the 2R and 3R regenerators that minimizes a total cost while satisfying the BER at the destination node, and determining an optimal placement of the 2R and 3R regenerators along a route in the optical transmission. 1. A method for optimal combined 2R/3R regenerators placement for optical transmission , said method comprising the steps of:i) determining an optimal placement of multiple 2R and 3R regenerators that minimizes bit error rate BER at a destination node;ii) determining an optimal number of said 2R and 3R regenerators that minimizes a total cost while satisfying said BER at said destination node; andiii) determining an optimal placement of said 2R and 3R regenerators along a route in said optical transmission2. The method of claim 1 , wherein said step i) comprises a recursive process based on the following relationships{'br': None, 'i': 'B[i,m,n', 'sub': (i−1,m,n)', '(i−1,m−1,n)', '(i−1,m,n−1), 'sup': (i,1,i)', '(i,2,i)', '(i,3,i), =α×BER+β×BER+γ×BER\u2003\u2003(1)'}{'br': None, 'i': 'P[i,m,n]=α×', '1+β×2+γ×3 \u2003\u2003(2)'}{'br': None, 'where'}{'br': None, 'sub': (i−1,m,n)', '(i−1,m−1,n)', '(i−1,m,n), 'sup': (i,1,d)', '(i,2,d)', '(i,3,d), 'α=1 if BER≦Min(BER,BER)'}{'br': None, 'α=0 Otherwise, \u2003\u2003(3)'}{'br': None, 'sub': (i−1,m−1,n)', '(i−1,m,n)', '(i−1,m,n−1), 'sup': (i,2,d)', '(i,1,d)', '(i,3,d), 'β=1 if BER≦Min(BER, BER)'}{'br': None, 'β=0 Otherwise, \u2003\u2003(4)'}{'br': None, 'sub': (i−1,m,n−1)', '(i−1,m−1,n)', '(i−1,m,n), 'sup': (i,3,d)', '(i,2,d), BER', '(i,1,d), 'γ=1 if BER≦Min(BER)'}{'br': None, 'γ=0 Otherwise, \u2003\u2003(5)'}{'br': None, 'α+β+γ=1 \u2003\u2003(6)'}3. The method of claim 1 , wherein said step ii) comprises evaluating the optimal placement of m 2R regenerators and n 3R ...
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