Method for allocating frequency spectrum resources based on honest cooperation in composite cognitive radio network

Abstract

The invention discloses a method for allocating frequency spectrum resources based on honest cooperation in a composite cognitive radio network, which comprises the allocation processes: firstly, access networks estimate respective minimum bandwidth demands and inform a network reconfiguration manager of the minimum bandwidth demands; secondly, the network reconfiguration manager dynamically allocate the frequency spectrum resources to the access networks according to a cooperative game model and a Nash bargaining method; thirdly, the network reconfiguration manager calculates utility loss brought by one access network in all the access networks to the other networks in sequence, takes the utility loss as a cost factor of the access network and calculates the cost required to be paid by the access network; and fourthly, the network reconfiguration manager respectively transmit the allocated frequency spectrum resources and the cost to the access networks. The invention not only can effectively encourage the access networks to honestly put forward the minimum bandwidth demands, remit the situation of excessive use of the frequency spectrum resources at pains on the basis of satisfying the frequency spectrum demands of each access network, improve the whole utility of all the access networks, but also can be used for dynamically allocating the frequency spectrum resources in the composite cognitive radio network.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a method for dynamically allocating spectrum resources among various access networks in a cognitive composite wireless network, which can be used to meet the spectrum requirements of each access network and alleviate the excessive use of some spectrum resources. Background technique [0002] In the existing communication network scenario, the access network plans the coverage in advance, divides the operating frequency band according to the coverage and mutual interference level, and then selects the wireless communication equipment according to the operating frequency band. In this arrangement, each access network and wireless communication The operating frequency band of the equipment will not change after the network is built. However, with the development of wireless technology and the increase of wireless services, service requests arrive at different times and ...

AI Technical Summary

Problems solved by technology

At present, some spectrum allocation uses non-cooperative game technology. The access network chooses a strategy from the perspective of its own interests. The corresponding Nash equilibrium solution balances the strategies of each access network, but cannot satisfy Pareto Optimality.

The cooperative game is used for spectrum allocation, and its corresponding NBS-Nash Bargaining Solution satisfies Pareto optimality, is proportionally fair, and has monotonicity, but in the cooperative game, there is incomplete information between access networks , leading to the problem that the access network has the incentive to participate in cooperation dishonestly, resulting in the overuse of part of the spectrum and the underutilization of the part, reducing the overall utility

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