Wireless Mesh Network Channel And Spectrum Allocation Based On Power Control

Cognitive wireless networks has been widespread concerned as the next generation of wireless network technology important research,which use unlicensed spectrum can be opportunistic and flexible allocation to improve the spectral efficiency.The demand of spectrum resources for users growing fast,and traditional methods can not meet the spectrum needs of users of spectrum resources.With the emergence of cognitive radio technology,excellent ease the contradiction between the limited spectrum resources with the needs of users of spectrum resources continued growth.Cognitive wireless Mesh network has the ability of re-configuration,self-organized networks and cognition.It has great potential in terms of effective integration of heterogeneous wireless networks and improving resource utilization.Considering the cognitive wireless Mesh network channel allocation and power control,combining each cognitive node has multiple interfaces,designing the coding rule matching model and the corresponding constraint mechanism by quantifying the communication power control level,proposing the multiple interfaces cognitive wireless Mesh network algorithm based on model of CoDE.The experiments result shows that the algorithm has strong search capabilities,and has better performance in searching for optimal convergence outcomes.Shortage of spectrum resources for wireless networks growing,and dynamic spectrum allocation algorithm is an effective way to solve this problem.This paper presents a power control and spectrum allocation algorithm based on DE.If multiple secondary users use the same spectrum interference with each others,then adjusting the control power to change the scope of secondary users.The spectrums have been assigned to the secondary users which have fewer of spectrums,so as to increase the total income spectrum allocation.Simulation results show that,considering the power control to change the interference range of cognitive users can improve the overall effectiveness of the cognitive wireless network spectrum allocation.In the last of this paper,to summarize for the mathematical model and present the lack of programs proposed future need to continue research content.