期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 338, 期 3-4, 页码 633-658出版社
ELSEVIER
DOI: 10.1016/j.physa.2004.03.013
关键词
statistical physics of complex networks; network structure; information and communication; technology; wireless ad hoc networks; data traffic
As a representative of a complex technological system, the so-called wireless multihop ad hoc communication networks are discussed. They represent an infrastructure-less generalization of todays wireless cellular phone networks. Lacking a central control authority, the ad hoc nodes have to coordinate themselves such that the overall network performs in an optimal way. A performance indicator is the end-to-end throughput capacity. Various models, generating differing ad hoc network structure via differing transmission power assignments, are constructed and characterized. They serve as input for a generic data traffic simulation as well as some semi-analytic estimations. The latter reveal that due to the most-critical-node effect the end-to-end throughput capacity sensitively depends on the underlying network structure, resulting in differing scaling laws with respect to network size. (C) 2004 Elsevier B.V. All rights reserved.
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