Adaptive bandwidth allocation method for multi-user and multi-access video communication in heterogeneous network

Abstract

The invention discloses an adaptive bandwidth allocation method for multi-user and multi-access video communication in a heterogeneous network. By maximizing the user utility function, the adaptive allocation of bandwidth when the available network bandwidth changes is realized. With the change of the available network bandwidth, For fair service, the network fairly allocates bandwidth to each user with different video service characteristics, and different users charge the same price per unit of bandwidth. For graded services, the network prioritizes bandwidth allocation to users with higher grades of service according to users' requirements for different grades of service, and users with different grades of service charge different prices per unit of bandwidth. From the perspective of fair bandwidth allocation, the fair service algorithm is more fair while ensuring effectiveness; from the perspective of meeting the needs of different users, the graded service algorithm can satisfy users with different service levels according to the payment ability and needs of users while ensuring effectiveness quality requirements.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to an adaptive bandwidth allocation method for multi-user multi-access video communication in a heterogeneous network. Background technique [0002] With the development of wireless communication technology, driven by the joint drive of business needs and technological innovation, various wireless access technologies are paralleled, forming the current heterogeneous wireless network situation. Because any single network and wireless access technology cannot meet all the business needs of users, it promotes the development of various wireless networks in the direction of efficient coordination and integration. The future network environment will be a network in which multiple networks and technologies coexist. The integration and collaboration of heterogeneous networks is an inevitable trend of future communication networks. Wireless networks are developing toward higher communi...

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of network bandwidth, the streaming media service in the 3G era can provide limited video services and lack of user interaction.

But now most of the literature focuses on the efficiency issue and rarely takes into account the fairness issue. Some literatures take into account the fairness issue through the price mechanism, but still have not really realized the fairness of bandwidth allocation among multiple users.

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