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International Conference on Complex Systems (ICCS2006)

Selforganizing wireless multihop ad hoc communication networks

Martin Greiner
Siemens AG

     Full text: Not available
     Last modified: April 21, 2006

Wireless multihop ad hoc communication networks represent an
infrastructure-less peer-to-peer generalization of todays cellular
networks. Since a central control authority is missing, the complex
network has to selforganize itself for various operating tasks. Key
is the design of simple, yet robust distributive control rules, which
allow the overall network to perform well. Concepts from Theoretical
Physics, in particular the Statistical Physics of complex networks,
help to find such solutions. The first example addresses the
connectivity issue, where a selforganizing rule based on continuum
percolation is presented and shown to lead to strong network
connectivity almost surely. In the second example and guided by a
generic packet-traffic performance analysis, first a phenomenological
description of the end-to-end throughput capacity for fixed network
structures is developed and then further steps towards a
selforganizing rule for obtaining throughput-optimized network
structures are sketched. As a spinoff of this system analysis, a new
routing metric is proposed, which significantly increases the
throughput capacity. A selforganized routing and congestion control
for the communication traffic is the topic of the third example. The
fourth example is on network-design game theory, which allows for a
distributive control of network topology.

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