A queuing model for distributed scheduling in IEEE 802.16 wireless mesh networks

2013 ◽  
Vol 28 (5) ◽  
pp. 910-927 ◽  
Author(s):  
Cecília A.C. César ◽  
Solon V. Carvalho
2012 ◽  
Vol 3 (3) ◽  
pp. 368-374
Author(s):  
Usha Kumari ◽  
Udai Shankar

IEEE 802.16 based wireless mesh networks (WMNs) are a promising broadband access solution to support flexibility, cost effectiveness and fast deployment of the fourth generation infrastructure based wireless networks. Reducing the time for channel establishment is critical for low latency/interactive Applications. According to IEEE 802.16 MAC protocol, there are three scheduling algorithms for assigning TDMA slots to each network node: centralized and distributed the distributed is further divided into two operational modes coordinated distributed and uncoordinated distributed. In coordinated distributed scheduling algorithm, network nodes have to transmit scheduling message in order to inform other nodes about their transfer schedule. In this paper a new approach is proposed to improve coordinated distributed scheduling efficiency in IEEE 802.16 mesh mode, with respect to three parameter Throughput, Average end to end delay and Normalized Overhead. For evaluating the proposed networks efficiency, several extensive simulations are performed in various network configurations and the most important system parameters which affect the network performance are analyzed


2008 ◽  
Vol 45 (1) ◽  
pp. 105-128 ◽  
Author(s):  
Hongju Cheng ◽  
Naixue Xiong ◽  
Larence T. Yang ◽  
Young-Sik Jeong

2009 ◽  
Vol 51 (3) ◽  
pp. 615-634 ◽  
Author(s):  
Jian Zhang ◽  
Honglin Hu ◽  
Lu Rong ◽  
Hsiao-Hwa Chen

Author(s):  
M. Peng

This article introduces a functional architecture supporting the wireless mesh networks for the IEEE 802.16 standard. Three essential techniques—collision avoiding, packet scheduling, and wireless routing—are intensively presented. Based on the mesh extension of the IEEE 802.16 medium access control (MAC) layer protocol and the relay-based characteristic of WMNs, the algorithms concerning those three essential techniques are briefly reviewed. The suitable algorithms for collision avoiding and packet scheduling mechanisms are analyzed. Meanwhile, the wireless routing algorithm for the proposal architecture is discussed. The future research work is presented and the research problems are focused.


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