Dynamic adjustment method for wireless Ad Hoc network resource
A network resource and dynamic adjustment technology, applied in the field of communication, can solve problems such as unusable, overall network performance degradation, and unlimited overshoot, etc., to achieve the effects of improving accuracy, realizing effective utilization, and improving smoothness
Inactive Publication Date: 2010-04-28
WUHAN UNIV
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[0004] The disadvantage of this method is that it only limits the capacity of the steady-state network, and there is no limit to the amount of overshoot that occurs during the adjustment process.
With such a network control method, even if the algorithm makes the network operation more efficient in a steady state, the poor dynamic service effect will degrade the overall network performance or even make it unusable.
By examining the latest domestic and international literature, it can be found that there are no relevant technical research results in the research of wireless Ad Hoc dynamic adjustment process
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[0028] In order to realize high-performance wireless Ad Hoc network resource planning, the present invention provides a technical solution to achieve dynamic and static optimization of the adjustment process when adjusting wireless network resources.
[0029] The present invention considers that since the wireless Ad Hoc network is self-organized by multi-hop nodes, the optimal transmission rate allowed by each source node to network resources is adaptively adjusted according to the data packets fed back by the destination node. Different adjustment schemes of the sending rate result in different bandwidth requirements and different impacts on network service quality. Therefore, a feasible bandwidth allocation scheme should be formulated to make the adjustment process smoothly and quickly converge to the optimal operating point of network performance, so that network resources can be effectively used.
[0030] Therefore, the present invention proposes a solution: assuming that...
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The invention relates to a method for carrying out dynamic resource optimization on wireless Ad Hoc network, and is implemented by the following steps: arranging a data flow source node adjustment unit, an interference zone price calculation unit and a target node feedback unit, obtaining an interference zone price, obtaining a link dynamic adjustment price, calculating the total link price, calculating net link yield, finally seeking the transmitting rate ensuring the net link yield to be the highest, and using the obtained transmitting rate as a new node transmitting rate. With the invention, the uncertainty of dynamic state of the wireless Ad Hoc network can be solved, and data flow service can be guaranteed the optimal service. The invention proposes to take network dynamic allocation into account under the framework of optimization for the first time, thus facilitating the network service performance to maintain smooth transition all the time, reducing oscillating in the adjustment process of the network to the largest degree, ensuring the good robustness of the control effect, and improving the service quality of Ad Hoc network.
Description
technical field [0001] The invention relates to the communication field, in particular to a method for dynamically adjusting wireless Ad Ho network resources. Background technique [0002] The end-to-end data traffic regulation technology in the wireless Ad Hoc network mainly adopts the dynamic programming in the linear optimization. This type of technology continues Kelly's solution idea of optimizing network resources in wired networks: improving the overall efficiency of the network on the basis of ensuring the fairness of users being served. However, linear programming has two assumptions: first, assume that the controlled network object is a simplified linear object; second, the constraints are insufficient. [0003] A method for adjusting wireless Ad Hoc network resources in the prior art is a static resource optimization method. The sending rate of the source end of the wireless Ad Hoc network is only determined by the link congestion condition of the sending pack...
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Login to View More IPC IPC(8): H04W72/08H04W72/12H04W84/18
Inventor 胡瑞敏陈怡高戈
Owner WUHAN UNIV