Cooperation routing method for improving wireless network throughput capacity

A wireless network and throughput technology, applied in wireless communication, data exchange network, advanced technology, etc., can solve the problems of cooperative link failure, energy limitation, low computing power and storage capacity of mobile nodes, etc.

Active Publication Date: 2013-05-01
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the mobility of mobile wireless network nodes, the limitation of network bandwidth resources, the dynamic changes of network topology, the low computing power and storage capacity of mobile nodes, and the limited energy, etc., pose a challenge to the design of cooperative routing algori

Method used

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  • Cooperation routing method for improving wireless network throughput capacity
  • Cooperation routing method for improving wireless network throughput capacity
  • Cooperation routing method for improving wireless network throughput capacity

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specific Embodiment

[0073] The embodiment of the present invention takes a 200m×200m network including 20 mobile nodes as an example, the maximum node transmission power is 15dBm, the path loss factor α=4, and the channels between all nodes are independent and identically distributed quasi-static Rayleigh fading channel. In combination with a specific embodiment, the performance of the cooperative routing method designed in the present invention to improve the throughput of the wireless network is verified.

[0074] The specific working steps of the cooperative routing method for improving the throughput of the wireless network proposed by the present invention are as follows:

[0075] Step 1: Randomly select a pair of nodes in the network as the source node s and the destination node d, use the destination sequence distance vector routing protocol (DSDV) to establish a non-cooperative shortest path route from the source node s to the destination node d, and from the source node Starting from node...

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Abstract

The invention belongs to the field of wireless communication, and is mainly applied to a wireless self-organizing network. On the premise of not increasing the network energy consumption, the throughput capacity of the whole routing path is effectively improved through maximizing the network throughput capacity of each hop of links. In order to reach the goal, a method provided by the invention adopts the technical scheme that according to a cooperation routing method for improving the wireless network throughput capacity, a source node transmits data to a target node through multiple hops, an emitting node of each hop of link firstly builds a non-cooperation shortest path route, and in addition, a candidate relay node set is built through a built route list and a neighbor node list; then, the link throughput capacity under the direct transmission, single-relay cooperation transmission and double-relay cooperation transmission is calculated, and the transmission mode corresponding to the maximum throughput capacity is selected in a self-adaptive way to be used as the transmission mode of the hop of link; and finally, the power is dynamically regulated according to the selected transmission mode, in addition, the data grouped transmission is carried out until the data of the source node is transmitted to the target node.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a cooperative routing technology applied to a wireless ad hoc network, specifically, an adaptive cooperative routing method for improving the throughput of a wireless ad hoc network. Background technique [0002] With the development of wireless communication technology, mobile data and information services have increased substantially. Especially with the widespread popularization of smart terminals and various mobile applications, people's demand for wireless data services is growing rapidly, so higher requirements are put forward for wireless network performance indicators such as network throughput. However, on the one hand, in actual mobile communication, mobile terminals often work in urban buildings or other complex and changeable geographical environments. The complex terrain and topography make the signal received by the receiving end generally suffer fr...

Claims

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Application Information

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IPC IPC(8): H04L12/733H04L12/741H04W40/04H04L45/122H04L45/74
CPCY02D30/70
Inventor 韩昌彩黄静赵方圆李媛
Owner TIANJIN UNIV
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