A Data-rate Control Model Based on 802.11 DCF Basic Access Mechanisms in Mobile Ad hoc Networks
Xia Wen-jie① Li Qian-mu① Sun Jin-hou② Liu Feng-yu①
①(Department of Computer Science, Nanjing University of Science & Technology, Nanjing 210094, China) ②(The Second Artillery Equipment Research Institute, Beijing 100085, China)
Abstract：Mobile Ad hoc NETworks (MANET) has inherent characteristic of dynamic topology, distributed collaboration, thus on-demand routing protocols employs multicast mechanism to improve transmission efficiency. However multicast is apt to cause network congestion which makes congestion condition in MANET critical. On the basis of the stochastic characteristics of MANET node and 802.11 DCF basic access mechanisms, the paper proposes an infinite state quasi-birth-and-death model to accurately describe the packet generating, queuing, sending process of individual node. Stationary analysis is performed with matrix-geometric method and the set of equations for packet arrival rate threshold is obtained. The effectiveness of this model is demonstrated by the simulations in OPNET. The contribution of this paper is to provide a mathematical tool for congestion control research.
夏文洁, 李千目, 孙晋厚, 刘凤玉. 一种基于802.11 DCF Basic Access机制的移动自组网动态速率控制模型[J]. 电子与信息学报, 2013, 35(11): 2650-2656.
Xia Wen-Jie, Li Qian-Mu, Sun Jin-Hou, Liu Feng-Yu. A Data-rate Control Model Based on 802.11 DCF Basic Access Mechanisms in Mobile Ad hoc Networks. , 2013, 35(11): 2650-2656.
2013, Vol. 35 
