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Cross-layer design for tree-type routing and level-based centralised scheduling in IEEE 802.16 based wireless mesh networks

Cross-layer design for tree-type routing and level-based centralised scheduling in IEEE 802.16 based wireless mesh networks

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  • Author(s): M. Peng 1 ; Y. Wang 1 ; W. Wang 2
    • View affiliations
    • Affiliations: 1: Wireless Signal Processing & Network Lab, Beijing University of Posts and Telecommunications, Beijing, China
      2: Key Laboratory of Universal Wireless Communication (BUPT), Ministry of Education, Beijing, China
  • Source: Volume 1, Issue 5, October 2007, p. 999 – 1006
    DOI:  10.1049/iet-com:20060519 , Print ISSN 1751-8628, Online ISSN 1751-8636
© The Institution of Engineering and Technology
Published

Infrastructure wireless mesh network, also named as mesh router, is one key topology for the next generation wireless networking. In this work, the performance optimisation for the infrastructure wireless mesh network is presented and the sub-optimum solution mechanism is investigated. A cross-layer design for tree-type routing, level-based centralised scheduling and distributed power control theme is proposed as the sub-optimum solution strategy. The cross-layer design relies on the channel information and the distributed transmission power control in the physical layer, and the wireless scheduling in the medium access control (MAC) layer, as well as the routing selection mechanism in the MAC upper layer. In this work, a modified distributed power control algorithm is proposed first. In addition, a tree-type routing construction algorithm for centralised scheduling is presented to improve the network throughput by jointly considering interference and hop-count to construct the routing tree. Simulation results show that the proposed cross-layer design strategy can effectively improve the network throughput performance, decrease the power consumption and achieve better performances.

Inspec keywords: scheduling; WiMax; distributed control; telecommunication network topology; telecommunication control; telecommunication network routing; power control

Other keywords: cross-layer design; MAC layer; channel information; distributed power control theme; IEEE 802.16 based wireless mesh networks; sub-optimum solution mechanism; level-based centralised scheduling; tree-type routing; medium access control; key topology; next generation wireless networking; network throughput; routing selection mechanism

Subjects: Metropolitan area networks; Communication network design, planning and routing; Control applications in radio and radar; Radio links and equipment; Control applications in data transmission; Computer communications

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