Reconstruction method of terminal under environment of cognitive radio network

Abstract

The invention discloses a reconstruction method of a terminal under the environment of a cognitive radio network and belongs to the communication technology field. The invention mainly solves the problem that the terminal is frequently reconstructed and can not effectively make a decision. The reconstruction method comprise the specific processes: firstly, acquiring various attribute data of the network for covering an area where the network terminal is positioned; secondly, determining the weights of all attributes of an access network by applying an eigenvector method; thirdly, constructing a weighted and specified decision array according to the various attributes of reconfiguration schemes; fourthly, listing an ideal solution and a negative-ideal solution; fifthly, calculating a virtual worst solution; sixthly, calculating distances from each reconstruction scheme to the ideal solution and from the reconstruction scheme to the negative-ideal solution; seventhly, calculating comprehensive evaluation indexes of each reconstruction scheme; and eighthly, arranging good and bad sequences of each reconstruction scheme and selecting the optimal scheme access network. The invention not only can effectively determine the weights of various attributes in each reconstruction scheme and select the optimal scheme access network, but also can be used for the reconstruction of the terminal under environment of the cognitive radio network.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to a terminal reconfiguration method, and can be used for reconfiguration of multi-mode terminals in a cognitive wireless network environment. Background technique [0002] In today's wireless communication field, especially in cognitive wireless communication networks, the demand for broadband services is increasing, which makes the demand for multi-mode reconfigurable terminals more urgent. The reconfiguration method of the multi-mode terminal is very important to guarantee the service quality of the network. The most important communication scenario in cognitive networks is communication in a heterogeneous network environment. The so-called heterogeneous network refers to a network that may be covered by multiple operators and multiple radio access networks in one application scenario. The wireless access network includes UMTS, WIMAX 802.16d / e, WLAN and other different networks...

AI Technical Summary

Problems solved by technology

However, in practical applications, the maximum probability algorithm is difficult to properly define due to the complexity of the effect function involving multiple QoS elements, so it is not easy to deal with the weight of QoS factors, such as throughput, timeliness, reliability, security The Importance of Sex and Cost

Although the analytic hierarchy process and the gray-scale association method can effectively deal with the weight of each QoS factor, the algorithm cannot effectively sort the alternatives when the final decision is reconstructed, and it is difficult to intuitively determine the pros and cons of multiple alternatives

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