Method for allotting idle channels in radio network

A distribution method and radio technology, applied in the field of communication, can solve problems such as high computational complexity and inapplicability, and achieve the effect of low complexity and saving signaling overhead

Inactive Publication Date: 2013-02-06
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As mentioned earlier, this model has high computational complexity and is not suitable for networks with multiple channel owners

Method used

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  • Method for allotting idle channels in radio network
  • Method for allotting idle channels in radio network
  • Method for allotting idle channels in radio network

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Embodiment Construction

[0035] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0036] Such as figure 1 As shown, this embodiment includes multiple channel owners and multiple secondary users, and each channel owner has a certain number of idle channels. Based on the consideration of interference, each idle channel can only be assigned to one secondary user; based on the immature spectrum aggregation technology, each secondary user can only use one idle channel at a time.

[0037] The environmental parameters of this embodiment are:

[0038] There are 5 channel owners and 100 secondary users, which are evenly distributed in a rectangular area of ...

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Abstract

The invention relates to a method for allotting idle channels in a radio network in the technical field of communication, which comprises the following steps: each channel owner calculates the numberof self idle channels and broadcasts the initial price of the idle channels by a common control channel; each second-level user selects the channel owner maximizing self benefits to transmit a biddingrequest; each channel owner dynamically updates the price and broadcasts the price by the common control channel; the channel auction process is not finished till a system is in a balanced state; andthe channels are allotted according to the current bidding request of each second-level user. The invention has low complexity, signaling cost saving, no information interaction among the channel owners and no information interaction among the second-level users; and when a proper price is selected for updating step length, the obtained channel allotting result approximates to global optimum.

Description

technical field [0001] The invention relates to a method in the technical field of communication, in particular to a method for allocating idle channels in a radio network. Background technique [0002] With the rapid development of wireless communication technology, wireless spectrum becomes an increasingly scarce resource. Cognitive radio improves spectrum utilization by allowing unlicensed users to access channels under certain restrictions. In a cognitive radio network, it is generally divided into primary users and secondary users (also called secondary users, denoted as SU). The primary user is an authorized user, who has ownership of the channel and can access the channel at any time without any interference; the secondary user is an unauthorized user, who can occupy the channel only under the condition of not causing interference to the primary user, that is, It is to opportunistically occupy channels to obtain maximum throughput. In order to improve spectrum effi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04B17/00H04W16/10
Inventor 胡晨晖高林王新兵徐友云甘小莺
Owner SHANGHAI JIAOTONG UNIV
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