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Non-cooperation game resource allocating-based 3G (the third generation telecommunication) / WLAN (wireless local area network) heterogeneous network accessing control method

A non-cooperative game and resource allocation technology, applied in the field of 3G/WLAN heterogeneous network access control based on non-cooperative game resource allocation, can solve the problems of low network utility, high blocking rate of access control methods, and unbalanced load. , to achieve the effect of improving user fairness and optimizing system resource utilization.

Active Publication Date: 2014-03-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problems of low network utility, unbalanced resource distribution, unbalanced load, and poor user fairness in existing heterogeneous network resource allocation and access control technologies, resulting in low system resource utilization and existing access control For the problem of high blocking rate of the method, a 3G / WLAN heterogeneous network access control method based on non-cooperative game resource allocation is proposed

Method used

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  • Non-cooperation game resource allocating-based 3G (the third generation telecommunication) / WLAN (wireless local area network) heterogeneous network accessing control method
  • Non-cooperation game resource allocating-based 3G (the third generation telecommunication) / WLAN (wireless local area network) heterogeneous network accessing control method
  • Non-cooperation game resource allocating-based 3G (the third generation telecommunication) / WLAN (wireless local area network) heterogeneous network accessing control method

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specific Embodiment approach 1

[0019] Specific implementation mode 1. Combination Figures 1 to 2 Specifically illustrate this embodiment, the 3G / WLAN heterogeneous network access control method based on non-cooperative game resource allocation described in this embodiment, it comprises the following steps:

[0020] Step 1. Define the coverage area AP according to the bandwidth allocated by the user i The utility function of user x who has connected to the network in

[0021] U a p i , x = ω log αb - - - ( 1 )

[0022] in, Indicates that the connection x is at the AP i The utility of the coverage area, b means AP i The bandwidth of connection x, ω and α are constants, and step 2 is executed at the same time;

[0023] Step 2. According to the 3G / WLA...

specific Embodiment approach 2

[0030] Specific implementation mode 2. In this specific implementation mode, the specific steps of obtaining the total utility expression of the network in the entire service area and obtaining the resource allocation scheme that satisfies the maximum utility function described in step 2 are:

[0031] figure 1 Architecture diagram of hybrid heterogeneous network composed of 3G / WLAN network, the service area of ​​WCDMA network is a 0 ,a 1 ,...,an , the service area of ​​TD-SCDMA network is b 0 ,b 1 ,...,b n , CDMA2000 network service area is c 0 ,c 1 ,...,c n . For the WLAN network, because there is no problem of how to allocate the bandwidth of the AP coverage area of ​​each WLAN network, it is only necessary to consider the bandwidth allocation of the other three networks in each area. In order to ensure the fairness of the bandwidth allocated to each user in the area, the bandwidth is allocated to each user in each area according to the principle of equal distributio...

specific Embodiment approach 3

[0045] Specific embodiment three, in this specific embodiment, the non-cooperative game model of the wireless resource of setting up the wireless resource under the 3G / WLAN network environment described in step 3, obtains the utility expression concrete steps of WCDMA network, TD-SCDMA network and CDMA2000 network as follows: :

[0046] according to figure 1 As shown in the network coverage model, a non-cooperative game model of wireless resources is established. Because in resource allocation, the resources that each AP of the WLAN network can provide is related to the number of users, and there is no competition with the WCDMA network, TD-SCDMA network and CDMA2000 network, and there is no competition between each AP. Therefore, when establishing a non-cooperative game model of heterogeneous network wireless resources, participants only need to consider WCDMA network, TD-SCDMA network and CDMA2000 network, without considering WLAN sub-network. Since the final strategy adop...

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Abstract

A non-cooperation game resource allocating-based 3G (the third generation telecommunication) / WLAN (wireless local area network) heterogeneous network accessing control method belongs to the technology of a wireless heterogeneous network, and solves the problems such as low network effectiveness, unbalanced resource allocation in each area and low resource utilization rate in the existing heterogeneous network resource allocating and accessing control. The method comprises the steps of establishing a 3G / WLAN non-cooperation game model to obtain an effectiveness expression of the WCDMA (wideband code division multiple access), the TD-SCDMA (time division-synchronization code division multiple access) and the CDMA (code division multiple access) 2000, solving the non-cooperation game Nash equilibrium solution of the three networks as the optimal time solution of the total network effectiveness in the whole service area and proving the uniqueness of the Nash equilibrium. The bandwidth in each covering range is obtained according to the allocating result of the CDMA, TD-SCDMA and the CDMA2000 network game sources, the rest bandwidths of the WCDMA, TD-SCDMA, the CDMA2000 and the WLAN network are computed, the accessing of a new user and the switching of the user in the network are judged and the method is suitable for the field of the wireless heterogeneous network.

Description

technical field [0001] The invention belongs to the technology of wireless heterogeneous networks, and in particular relates to a 3G / WLAN heterogeneous network access control method based on non-cooperative game resource allocation. Background technique [0002] In future wireless communication systems, heterogeneous network convergence has attracted more and more attention due to its advantages in coverage, number of users, business types of users, and quality of service. The integration of various wireless access networks such as WCDMA network, TD-SCDMA network, CDMA2000 network and WLAN network can provide users with better services. Access control is a technology for judging whether to accept user call requests. It is an important part of wireless heterogeneous network integration. A good access control strategy can help reduce network congestion and ensure service quality. The traditional access control strategy determines whether to access the user request by comparin...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W72/04H04W36/14
Inventor 徐玉滨王勇马琳刘宁庆赵洪林
Owner HARBIN INST OF TECH
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