Adaptive cooperative forwarding method and system based on moderate service in wireless network
A technology of wireless network and forwarding method, which is applied in wireless communication, network traffic/resource management, electrical components, etc., and can solve the problem that network resources cannot be fully utilized, cognitive user QoS service requirements are difficult to guarantee, and spectrum resources are not maximized Use and other issues to achieve the effect of improving network utilization
Active Publication Date: 2018-05-04
SHANGHAI JIAOTONG UNIV
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However, the spectrum sharing in this mode is based on spectrum sensing and is still very passive. Only when the primary user is idle, the cognitive user can opportunistically access the spectrum. Access brings huge challenges. At the same time, when the primary user is performing data transmission, the network resources of cognitive users cannot be fully utilized, which makes the spectrum resources not fully utilized, and the QoS service requirements of cognitive users are difficult. ensure
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[0045] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0046] Such as figure 1 As shown, the adaptive cooperative forwarding method based on moderate service in the wireless network of the present invention includes the following steps:
[0047] Step 1: Initialize the radio users and free frequency bands inside the network;
[0048] Step 2: Obtain relevant parameters of known routing paths, QoS requirements, and surrounding network idleness;
[0049] Step 3: determine whether to trigger the cooperation mode;
[0050] Step 4: If the collaboration mo...
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The invention provides a moderate service-based adaptive cooperative transmission method and a moderate service-based adaptive cooperative transmission system in a wireless network. The method comprises the following steps of 1, initializing wireless users and idle frequency bands in the network; 2, acquiring related parameters of a known route, a QoS (quality of service) requirement and a spare network around a known node; 3, determining whether to trigger a cooperative mode or not; 4, if the cooperative mode is triggered, making a series of strategy sets. According to the method and the system, the network flow and the utilization rate can be maximized under the condition of meeting the QoS requirement of the users.
Description
technical field [0001] The invention relates to an adaptive cooperative forwarding method, in particular to an adaptive cooperative forwarding method based on moderate service in a wireless network. Background technique [0002] With the increasing social demand, various wireless communication technologies are rapidly developing and applied in various fields of social life. Wireless communication networks are developing in the direction of high-speed, broadband, and ubiquitous. The emergence of new technologies will make the spectrum resources of future networks more scarce. The traditional fixed spectrum allocation mode leads to unbalanced loads between licensed frequency bands and unlicensed frequency bands, resulting in a great waste of spectrum resources. With the commercial popularization of 3G systems and the continuous advancement of 4G research, the demand for wireless access is increasing day by day, which leads to increasingly crowded wireless spectrum resources a...
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IPC IPC(8): H04W28/16
CPCH04W28/16H04W28/24
Inventor 唐飞龙王玉凤房新宇栾志坤张健桐张杨唐灿过敏意
Owner SHANGHAI JIAOTONG UNIV