A new concept-repackable networks

@article{Jajszczyk1993ANC,
  title={A new concept-repackable networks},
  author={Andrzej Jajszczyk and Grzegorz Jekel},
  journal={IEEE Trans. Commun.},
  year={1993},
  volume={41},
  pages={1232-1237}
}
The following classes of connecting networks, based on their combinatorial properties, have been previously defined: networks nonblocking in the strict sense, networks nonblocking in the wide sense, rearrangeable networks, and blocking networks. To these the authors add the class of repackable networks, i.e., networks in which blocking can be avoided by using call repacking control algorithms. The conditions under which a three-stage Clos network is repackable are formulated and proved. The… 

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References

SHOWING 1-10 OF 15 REFERENCES

Dynamic Routing and Call Repacking in Circuit-Switched Networks

TLDR
It is found that dynamic routing algorithms improve network performance by increasing the number of paths available for call connection over what would otherwise be available to a corresponding static routing.

Call Repacking in Connecting Networks

TLDR
A method for increasing the traffic capacity of connecting networks is presented which involves rearrangement of calls while in progress, which has the advantage that the added control complexity is much less than required for rearranges in the normal sense.

Proposed use of rearrangement in multiexchange telecommunication networks

TLDR
It is shown for two simple networks that rearrangement eliminates blocking and provides a better grade of service than conventional automatic alternative routing and should enable fewer trunks to be provided.

A Simple Control Algorithm for Rearrangeable Switching Networks with Time Division Multiplexed Links

  • S. Ohta
  • Computer Science
    IEEE J. Sel. Areas Commun.
  • 1987
TLDR
A simple control algorithm is proposed for a three-stage rearrangeable switching network with time division multiplexed links that is efficient for broadband switching systems or cross-connect devices where nonblocking switches are needed.

Analytical and simulation study of simple rearrangeable multiexchange networks

Congestion probabilities for calls in simple three-exchange networks operated with and without rearrangements are determined analytically and by digital simulation. Load-loss curves are obtained,

A study of non-blocking switching networks

This paper describes a method of designing arrays of crosspoints for use in telephone switching systems in which it will always be possible to establish a connection from an idle inlet to an idle

Traffic Capacity of Cellular Mobile Communications Systems

  • D. Everitt
  • Computer Science, Business
    Comput. Networks ISDN Syst.
  • 1990

Mathematical Theory of Connecting Networks and Telephone Traffic.

Non-Blocking Rearrangeable Networks with Distributed Control