Simulation of Spectrum Resource Allocation Algorithm for LTE Communication Considering Electromagnetic Interference
Traditional resource allocation algorithms can not solve the problem of inter-channel co-channel elec-tromagnetic interference,which will significantly reduce the efficiency of resource allocation and system edge through-put.In order to solve the above problems,this paper combines the minimum power MP technology with the dynamic priority DP method and proposes an MDP dynamic spectrum resource allocation algorithm.Firstly,the algorithm de-termines the co-channel interference source by judging the edge users in the area.Then,based on the user channel gain table,the algorithm uses the high-low gain method to allocate the sub-carrier resources to solve the impact of co-channel electromagnetic interference.Finally,the MP technology is used to optimize the resource allocation system in the area,and the DP method is used to divide the dynamic interval carriers to improve the efficiency of resource al-location.Compared with the traditional RR and PF baseline allocation algorithms,the MDP algorithm has the highest user satisfaction and algorithm fairness when the number of users is less than 50,and the system spectral efficiency in-creases by 43.61%and 30.73%on average,respectively.In addition,the edge throughput increases by 7.89%on average,and the system throughput increases by 6.37%on average.To sum up,the MDP dynamic spectrum resource allocation algorithm can solve the problem of inter-channel co-channel electromagnetic interference and improve the system throughput,which has important research value in the field of communication.
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