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A dynamic resource scheduling method for noma cellular Internet of Vehicles based on energy efficiency

A technology of dynamic resources and scheduling methods, applied in network traffic/resource management, services based on specific environments, vehicle components, etc., can solve problems such as network congestion, ignoring resource allocation, and limiting the number of cellular users, etc., to maximize The effect of system energy efficiency

Active Publication Date: 2022-04-01
杭州拾毅网络科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] First of all, the previous research mainly considered the resource allocation problem of V2V communication under the OFDMA system, which limited the number of cellular users allowed to access the network.
In the NOMA cellular network scenario supporting V2V communication, a lot of work is focused on maximizing spectrum efficiency and throughput, without considering the resource allocation problem of maximizing system energy efficiency while ensuring V2V user delay and reliability
Moreover, in practice, the amount of data arrival exceeding the threshold of network capacity is likely to cause network congestion, and most studies have not combined congestion control into the resource optimization model
Finally, in the NOMA scenario that supports V2V communication, most of the existing literature considers the establishment of a static optimization model, which cannot dynamically schedule resources in real time according to the network load status.

Method used

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  • A dynamic resource scheduling method for noma cellular Internet of Vehicles based on energy efficiency
  • A dynamic resource scheduling method for noma cellular Internet of Vehicles based on energy efficiency
  • A dynamic resource scheduling method for noma cellular Internet of Vehicles based on energy efficiency

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Embodiment Construction

[0039] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] see figure 1 shown, figure 1 It is a scene diagram of vehicle communication under the cellular vehicle networking in dense urban areas adopted by the present invention. In the example of the present invention, a transmission scenario including two communication modes of V2I downlink and V2V sidelink is considered. In downlink V2I communication, NOMA technology is introduced to increase the number of devices connected to the network, while V2V sideline direct communication reduces the burden on base stations and has lower end-to-end transmission delay. The urban roads are in the shape of a Manhattan grid, and the vehicle distribution follows a one-dimensional Poisson point distribution model. The wireless channel model of the user consists of slow fading and fast fading consisting of path loss, shadow fading. NOMA users adopt the...

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Abstract

The invention relates to an energy efficiency-based NOMA cellular vehicle networking dynamic resource scheduling method, which belongs to the field of mobile communication. The method is: in the NOMA cellular network scenario supporting V2V communication, according to the constraints of V2V user reliability, V2V user delay, NOMA user rate requirement and user power limit, the long-term average energy efficiency of the system energy efficiency is maximized In order to optimize the target, a stochastic optimization model of joint NOMA user's sub-channel allocation, V2V user's spectrum allocation and congestion control requirements is established, and power allocation and sub-channel scheduling strategies are formulated for NOMA users and V2V users. The present invention can maximize the energy efficiency of the system under the premise of ensuring the stability of the system, and simultaneously satisfy the time delay and reliability of the V2V user and the rate requirement of the NOMA user.

Description

technical field [0001] The invention belongs to the field of mobile communication, and relates to an energy efficiency-based NOMA cellular vehicle networking dynamic resource scheduling method. Background technique [0002] In recent years, intelligent transportation system (ITS) has been receiving widespread attention. Cellular vehicle-to-vehicle communication (C-V2X), as a mainstream technology of vehicle networking, uses existing cellular communication technology to realize vehicle-to-infrastructure communication (C-V2I) And vehicle-to-vehicle direct communication (C-V2V), not only improves traffic efficiency, but also has the potential to meet ultra-high reliability and low latency requirements such as future autonomous driving. [0003] In the communication of a large number of vehicles in dense urban areas, spectrum resources are very scarce. On the one hand, making full use of limited spectrum resources and designing effective resource optimization algorithms can impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12H04W52/34H04W4/46H04W28/02
CPCY02T10/40
Inventor 唐伦肖娇魏延南马润琳周钰陈前斌
Owner 杭州拾毅网络科技有限公司
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