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A Method for Allocation of Machine Type Communication Resources Based on Externality and Matching Algorithm

A machine-type communication and resource allocation technology, applied in the field of resource allocation optimization algorithms, can solve problems such as MTD co-channel interference and co-channel interference

Active Publication Date: 2021-02-02
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, sharing spectrum between CUs and MTD in this communication mode will cause co-channel interference between them
In addition, if one RB is multiplexed by multiple MTDs, there will be co-channel interference between MTDs

Method used

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  • A Method for Allocation of Machine Type Communication Resources Based on Externality and Matching Algorithm
  • A Method for Allocation of Machine Type Communication Resources Based on Externality and Matching Algorithm
  • A Method for Allocation of Machine Type Communication Resources Based on Externality and Matching Algorithm

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Embodiment Construction

[0058] The embodiment of the present invention is divided into two steps, the first step is to build a model, and the second step is to implement the algorithm. Among them, the established system model is as figure 1 As shown, it completely corresponds to the introduction of the MTD communication network system model diagram based on a single cellular network in the summary of the invention.

[0059] 1) For the system model, a base station equipped with an omni-directional antenna is located at the center of the cellular network, and MTDs are randomly distributed around. A channel model with block fading properties is adopted, which considers that the channel state is fixed within a given time block and varies independently between different time blocks. Using orthogonal partitioning of cellular network spectrum resources, each CU transmits on a single sub-channel or RB. Considering the uplink spectrum reuse scenario, each MTD n By multiplexing at most one cellular user C ...

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Abstract

The invention relates to a method for allocating machine-type communication resources based on an externality and matching algorithm, which allows a large number of machine devices (MTDs) to reuse the spectrum resources allocated to cellular users (CUs) for the problem of scarce spectrum resources. The energy efficiency (EE) maximization problem of MTDs is studied by jointly optimizing channel selection and power control. A two-stage optimization algorithm based on external many-to-one matching is proposed. First, each MTD is temporarily allocated to a predefined transmission power, and then the channel selection optimization problem is solved through a matching algorithm that considers externalities, and a two-dimensional matching relationship between the MTD and the resource block (RB) is established; then, according to the already Based on the established matching relationship, nonlinear fractional programming is used to optimize the transmission power of MTD, thereby effectively improving spectrum utilization and maximizing communication network EE. In order to obtain the optimal allocation scheme of spectrum resources.

Description

technical field [0001] The invention belongs to the field of wireless communication, and specifically relates to an energy-efficient resource allocation optimization algorithm applied in a smart grid machine-type communication scenario. Through joint optimization of channel selection and power control, the energy efficiency (EE )maximize. First, the two-dimensional matching relationship between MTD and resource block (RB) is established by combining the matching model with externalities; then, the transmission power of MTD is optimized through nonlinear fractional programming, so as to effectively improve spectrum utilization and maximize communication network EE . In order to obtain the optimal allocation scheme of spectrum resources. Background technique: [0002] Machine type communication plays an important role in the smart grid. As a new communication method, machine type communication can realize seamless integration with 4G or 5G cellular network. It has the char...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/70H04W24/02H04W72/04H04W72/08H04W72/54
CPCH04W4/70H04W24/02H04W72/0453H04W72/0473H04W72/542Y02D30/70
Inventor 孔文萱周振宇黄毕尧
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)