Internet of Vehicles heterogeneous resource dynamic slicing method based on Lyapunov random optimization
A stochastic optimization and Internet of Vehicles technology, applied in network traffic/resource management, services based on specific environments, communication between vehicles and infrastructure, etc., can solve problems that cannot be well adapted to vehicle communication needs, and achieve improvement Effects of network resource utilization, network capacity expansion, and average communication delay minimization
A stochastic optimization and Internet of Vehicles technology, applied in network traffic/resource management, services based on specific environments, communication between vehicles and infrastructure, etc., can solve problems that cannot be well adapted to vehicle communication needs, and achieve improvement Effects of network resource utilization, network capacity expansion, and average communication delay minimization
CN112423267AActive Publication Date: 2021-02-26NANJING UNIV
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[0124] This embodiment considers a scenario where differentiated service groups coexist in a heterogeneous cellular access network, such as figure 2 shown. There are S small cell base stations within the coverage area of a macro cell base station, and there are U vehicle users requesting various services on the road of this macro cell cell. We consider three different types of communication needs in autonomous vehicle communication scenarios.
[0125] The first communication requirement is the high-definition map download service in autonomous driving. In this embodiment, the macro cell base station can provide a detailed map of the entire block, and the small cell base stations distributed in each block can provide a high-definition map of the block. It is assumed that N vehicle users can choose to access the macro cell base station or the small cell base station to request the high-definition map download service.
[0126] The second communication requirement is conten...
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The invention provides an Internet of Vehicles heterogeneous resource dynamic slicing method based on Lyapunov random optimization. According to the Internet of Vehicles heterogeneous resource dynamicslicing method based on Lyapunov random optimization, the random optimization problem with the minimum system average vehicle communication time delay as the optimization target is constructed. By utilizing a drift and penalty algorithm in a Lyapunov random optimization method, the invention firstly provides a universal dynamic heterogeneous resource allocation scheme for differentiated service slices. Then, in combination with a Markov approximation method, the invention provides a specific spectrum bandwidth and cellular access point heterogeneous resource dynamic allocation method. On thepremise of meeting the requirements of mutual isolation and dynamic resource sharing of differentiated service slices, the average communication time delay of the time delay sensitive service is minimized, and the average achievable data rate of the instant interaction service is ensured.
Description
technical field [0001] The invention relates to the technical field of wireless access to the Internet of Vehicles, in particular to a method for dynamically slicing heterogeneous resources in the Internet of Vehicles based on Lyapunov random optimization. Background technique [0002] In the vehicle access network, a large number of differentiated vehicle communication requirements, such as large-bandwidth high-precision map download services, delay-sensitive popular content caching services, and high-speed instant interactive services, often coexist in the same cellular network middle. At the vehicle access network level, with the development of 5G mobile communication technology, the cellular network is evolving towards the coexistence of heterogeneous access methods. At the same time, the inherent problem in the wireless access network - the scarcity of spectrum bandwidth, is constantly being amplified. How to select appropriate access points and allocate sufficient sp...
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Patent Timeline
26 Feb 2021
Publication
CN112423267A
- IPC
- H04W4/44; H04W16/14; H04W16/22; H04W28/02
- CPC
- H04W4/44; H04W16/14; H04W16/22; H04W28/0236; H04W28/0268; Y02T10/40
- Inventors
- 周海波; 彭学森