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A Dynamically Variable Resource Allocation Method for mf-tdma Satellite Communication System

An MF-TDMA, satellite communication system technology, applied in the field of dynamically variable MF-TDMA satellite communication system resource allocation, can solve problems such as time-frequency resource allocation, and achieve the effect of improving system capacity and reducing rejection rate

Active Publication Date: 2016-04-27
PLA UNIV OF SCI & TECH
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Problems solved by technology

[0014] The purpose of the present invention is to provide a dynamically variable MF-TDMA satellite communication system resource allocation method to solve the problem of time-frequency resource allocation in a satellite communication system using MF-TDMA system for uplink and downlink

Method used

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  • A Dynamically Variable Resource Allocation Method for mf-tdma Satellite Communication System
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  • A Dynamically Variable Resource Allocation Method for mf-tdma Satellite Communication System

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] combine figure 1 , MF-TDMA satellite communication system consists of a network control center and several ground stations, each of which can support multiple links at the same time. Suppose there are K terminals in the system and W link applications. The type of modulation and coding that the i-th terminal can support is V i , the set of supported link applications is denoted as , i∈{1,2,...,K}.

[0039] combine image 3 , each time slot is composed of a time slot header, a business part and a time slot tail. The time slot head is composed of several symbols, which are mainly used for bit timing; the business part is mainly used to transmit effective information; the time slot tail is a period of free time, which is mainly used for time slot protection. Suppose the channel of the MF-TDMA satellite communication system is composed of N carriers,...

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Abstract

The invention discloses a resource allocation method with a dynamically-variable modulation coding mode for an MF-TDMA (Multi-Frequency Time Division Multiple Access) satellite communication system. The technical scheme of the method comprises the following three steps: firstly, allocating different link applications to different carriers according to the traffic of each link application; secondly, continuously adjusting the modulation coding mode of each link application to increase the overall system capacity, and determining a time slot needing to be allocated to each link application according to a carrier rate and the modulation coding mode allocated for each link application; lastly, allocating a specific time slot for each link application in the channel structure of the MF-TDMA satellite communication system by adopting a Best-Fit algorithm to finish the entire resource allocation process. Compared with the prior art, the method has the advantages that the system capacity is increased, and the reject rate of the link applications is reduced. Therefore, the resource allocation method has wide application prospects in various current MF-TDMA satellite communication systems.

Description

technical field [0001] The invention belongs to the technical field of resource allocation, and in particular relates to a dynamically variable MF-TDMA satellite communication system resource allocation method, which improves the system capacity by constantly adjusting the modulation and coding mode of the link application. Background technique [0002] Multi-frequency time-division access technology (MF-TDMA) is one of the key technologies of broadband multimedia satellite communication system, and it is a hot spot in satellite communication technology research at present. It has the characteristics of flexible allocation strategy and high channel utilization rate. Therefore, it has been more and more widely used in our military's satellite communication system. General MF-TDMA satellite communication system configuration such as figure 1 As shown, the system consists of several ground terminals and network control center, and each ground terminal can support multiple link...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W16/10H04W84/06
Inventor 刘爱军张邦宁王恒潘小飞郭道省潘克刚童新海张应宪叶展杨思祥丁科方华晋军龚超续欣刘贤吴团峰王桁赵兵陆溪平
Owner PLA UNIV OF SCI & TECH
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