Get Data Communications and their Performance: Proceedings of PDF

By J. García, J. M. Barceló, O. Casals (auth.), Serge Fdida, Raif O. Onvural (eds.)

ISBN-10: 0387349421

ISBN-13: 9780387349428

ISBN-10: 1475749082

ISBN-13: 9781475749083

This is the 6th convention within the sequence which begun in 1981 in Paris, via meetings held in Zurich (1984), Rio de Janeirio (1987), Barcelona (1991), and Raleigh (1993). the most aim of this IFIP convention sequence is to supply a platform for the alternate of contemporary and unique contributions in communications platforms within the components of functionality research, architectures, and purposes. there are lots of exiciting developments and advancements within the communications undefined, numerous of that are with regards to advances in Asynchronous move Mode·(ATM), multimedia prone, and excessive pace protocols. it really is usually believed within the communications that ATM represents the subsequent new release of networking. but, there are many matters that has been labored on in numerous criteria our bodies, executive and examine and improvement labs, and universities in the direction of permitting excessive velocity networks normally and ATM networks particularly. Reflecting those tendencies, the technical software of the 6th IFIP W.G. 6.3 convention on functionality of machine Networks contains papers addressing a variety of technical demanding situations and presenting quite a few cutting-edge strategies to a subset of them. this system contains 25 papers chosen via this system committee out of fifty seven papers submitted.

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Extra resources for Data Communications and their Performance: Proceedings of the Sixth IFIP WG6.3 Conference on Performance of Computer Networks, Istanbul, Turkey, 1995

Example text

Let ° 0< 51:'_1 < N en L'k_1 = , J-(n) k-I > 1 -in) 51:'_1 = 0, Jk _ 1 = 1 J{ + u(5 k) - or 0n Uk_1 = J'V , or 51:'_1 = N, Jk _ 1 - •I-in) k-I -in) ° =° > u(k). ) _(n)(. Ck (5) I)PX]x',o,(Ck-I(V, x', 0, 0) + Ck_1 (v, x', N s , 1)) x' L[PX]x',x(Ck-I(V,X',O,j) Ck(V,X,S,j) = (4) x' L[PX]x',xCk-I(V,X',s -1,j x' = 0, if s if s = 1, j = ° + Ck_I(V,X', Ns,j + 1)) + 1) if 2 <:; s <:; N s , 1 <:; j <:; K otherwise ° (6) 1 <:; j <:; K +1 where k :::: 1, n :::: 1, x,x' E X, v E V. f. f. of system state at the nth embedded point is given as c~n+I)(V',x,s,j) = LLav(v',k) c~n)(v,x,s,j), k v (7) ° + where k :::: 1, v, v' E V, x E X, 0<:; s <:; Ns and <:; j <:; K 1.

V-stream arrival in a slot is considered first for buffer allocation. Hence, we have CV == Co. Case 2: 'rx arrival policy. The system state seen by a V-stream arrival is after the X-stream cells of the same slot. () - ,) < + urSa)). l\ (9) + u(s) J K +u(s). I=K+u(s) 1=0 Some of the interesting performance measures of V-stream are found as follows: P[buffer occupancy P[cell loss] = j] = ~ [CV(V,X,O,j) + ~CV(V'X'S,j + 1)], ~ [ c"(v,x,O,K) P[delay = j slots] = j I:cV(v,x,s,1) ° fl. Ns + ~cV(v,x,s,A' + 1) ] ° (11) (12) ° + LcV(v,x,Ns,l) if j mod N" = if j m:~ Ns of- and N s :::; j < (K + l)Ns LcV(v,x,O,I-l) v,x 0:::; j:::; (13) otherwise when, s = (Ns - j) mod (Ns), 1= U/NsJ and delay is the time spent in the system.

In order to derive the pgf n(xl, x2, ... ), we let 1t(il> i2, ... I h ' h, ... ) denote the one-step transition probability that there are in (n ~ 1) sources in the nth slot of an on-period, given that there were h (l ~ 1) sources in the lth slot of an on-period in the previous slot. ) = LL ... ) (zO)k=1 hh Hence, we obtain the following equation for the pgf n(Xl, x2, ... ) : (28) 42 Part One ATM Multiplexing As can be expected intuitively, it is possible to show that the solution n(Xl' x2, ...

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Data Communications and their Performance: Proceedings of the Sixth IFIP WG6.3 Conference on Performance of Computer Networks, Istanbul, Turkey, 1995 by J. García, J. M. Barceló, O. Casals (auth.), Serge Fdida, Raif O. Onvural (eds.)


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