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Vehicle edge computing network task unloading load balancing system and balancing method

An edge computing and load balancing technology, applied in the field of wireless communication, can solve the problem of unbalanced computing resource load, and achieve the effect of improving the transmission rate

Active Publication Date: 2019-12-10
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides a vehicle edge computing network task unloading balancing system and balancing method to solve the problem of MEC server computing congestion or load imbalance of computing resources between MEC servers in the prior art. technical problem

Method used

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  • Vehicle edge computing network task unloading load balancing system and balancing method
  • Vehicle edge computing network task unloading load balancing system and balancing method
  • Vehicle edge computing network task unloading load balancing system and balancing method

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Embodiment

[0199] Without loss of generality, in this embodiment, the value is assigned to the vehicle edge computing network task offloading load balancing system, the length of the one-way running road is 1000m, the number of integrated roadside units 2 is 10, and the integrated road The side units 2 are uniformly arranged on the road, and the number of vehicles is n=50; it is assumed that the remote cloud center is located thousands of miles away.

[0200] For computational tasks, assume the input data size and output data The size is in the interval [400kb, 1000kb] and [50kb, 200kb], the CPU cycle c required to complete the calculation task i Set between 200-1500 megacycles, the maximum allowable processing delay for tasks Set between 0.5-2s.

[0201] RSU wireless bandwidth ω 1 Set to 40 MHz, the vehicle's wireless bandwidth ω 2 Set to 20 MHz, transmit power p i It is 100mW, and the background noise power σ is -100dBm.

[0202] The CPU cycle frequency of the MEC server An...

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Abstract

The invention discloses a vehicle edge computing network task unloading load balancing system and balancing method, and the system comprises a remote cloud center, the remote cloud center builds connection with each road side unit, a plurality of road side units are uniformly distributed in a road extension direction, and a wireless network connection is built between two road side units; each vehicle is provided with a wireless communication module, and the vehicles are connected through the wireless communication modules; wireless network connection is established between the vehicle and theroad side unit; the SDN controller establishes connection with each road side unit. In a FiWi enhanced vector task unloading system structure based on an SDN controller, the communication path is optimally selected, under the condition that the computing power of the MEC servers is reduced along with the increase of the number of vehicles which select to unload the computing tasks to the MEC servers, relevant parameters are continuously updated, computing resources of each MEC server are averagely utilized in the load balancing task unloading method, and the unloading method is excellent in performance.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a vehicle edge computing network task offloading load balancing system and a balancing method. Background technique [0002] With the rapid development of wireless communication and artificial intelligence, vehicles are becoming more and more connected and intelligent in the era of Internet of Things. With the rapid development of automotive networks, various delay-sensitive automotive applications have emerged, such as automatic driving, automatic navigation, and natural language processing. The above-mentioned applications usually have a large amount of processed data and require a large amount of computing resources; however, vehicles with limited computing resources cannot guarantee the quality of use of the above-mentioned applications. [0003] Existing mobile edge computing offloading schemes in vehicle networks are usually done by the server cl...

Claims

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Application Information

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IPC IPC(8): H04W4/40H04W4/44H04W4/46H04W4/029H04L29/08
CPCH04L67/10H04L67/1004H04L67/12H04W4/029H04W4/40H04W4/44H04W4/46
Inventor 刘家佳郭鸿志张海宾孙文周小艺张杰
Owner NORTHWESTERN POLYTECHNICAL UNIV
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