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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v74.i18.30
pages 1619-1633

TWO LEVEL CONTROL ALGORITHM FOR HIERARCHICAL CROSS-LAYER ROUTING IN 802.16 MESH NETWORKS

O.Yu. Evseeva
Kharkiv National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkiv, 61166, Ukraine
E. M. Al-Azzawi
O.S.Popov Odessa National Academy of Telecommunications

RESUMO

The proposed hierarchical routing algorithm is aimed at finding a compromise between scalability and performance of the IEEE 802.16 wireless mesh network. The basic idea consists in clustering and decomposition of the task of routing into two levels where the upper level is responsible for the routing between clusters, and the centers of control of the low level in each cluster provide the internal routing. In this case the routing is treated as a problem of optimal allocation of time slots in the communication channels. In general, the algorithm implements the principle of progressive improvement of the objective function value; provides the dynamic nature of control decisions; ensures simultaneous control of channel and buffer resources; affords the ability to reuse slot and balanced use of resources due to the multipath method of traffic delivery.


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