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Power and speed control method based on deflection subgradient method in Ad Hoc network

A power control and subgradient technology, applied in the field of communication, can solve problems such as complex topology and instability

Inactive Publication Date: 2013-05-08
LUDONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the transmission mode of the Ad Hoc network is peer-to-peer, and it moves dynamically, so its topology structure is relatively complex and unstable.

Method used

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  • Power and speed control method based on deflection subgradient method in Ad Hoc network
  • Power and speed control method based on deflection subgradient method in Ad Hoc network
  • Power and speed control method based on deflection subgradient method in Ad Hoc network

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Embodiment Construction

[0148] Referring to the accompanying drawings, specific embodiments of the present invention are given below to further describe the present invention.

[0149] The present invention jointly optimizes the network transmission power, transmission rate and weight, and formulates a corresponding utility function according to various constraints of formulas (1)-(5). In addition, there are a few special explanations: ①The function of the data transmission rate on the channel is usually a concave function that is derivable and monotonically increasing. ②The network is limited by energy transmission. To ensure that the data survives in the channel within a certain period of time, the comprehensive network service requirements are met accordingly, and the network performance is improved. The power should be a convex nonlinear function.

[0150] Through the above comprehensive analysis, the optimization model of the utility function of the wireless ad hoc network can be obtained as fol...

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Abstract

The invention relates to a wireless self-organizing network, namely, an Ad Hoc network, in particular to a power and speed control method of the wireless self-organizing network. The method comprises a first step of acquiring channel bandwidths, noise power and sending power upper bounds of all links of the Ad Hoc network, a second step of confirming transmission power, transmission speed and weight of network nodes according to the channel bandwidths, the noise power and the sending power upper bounds, and a third step of carrying out power and speed control through the network nodes according to the confirmed transmission power, the confirmed transmission speed and the confirmed weight.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a wireless self-organizing network, that is, an Ad Hoc network. In particular, it relates to a power and rate control method of a wireless ad hoc network. Background technique [0002] Wireless networks are divided into wireless local area networks (WLANs) and wireless ad hoc networks (Ad hoc networks) based on whether there are fixed facilities. Among them, the transmission mode of Ad Hoc network is peer-to-peer, and moves dynamically, so its topology structure is complex and unstable. It is essentially different from the WLAN network that relies on the central node and uses cables or optical fibers as the transmission medium to directly exchange information with other terminal nodes. Because of these characteristics, wireless self-organizing networks are generally called "mobile multi-hop networks". [0003] The emergence of the Ad Hoc network can be traced back to the U...

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Application Information

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IPC IPC(8): H04W28/02H04W28/06H04W28/22H04W52/04
Inventor 唐美芹
Owner LUDONG UNIVERSITY
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