Font Size: a A A

Research Of Micro-power Frequency-hopping Data Communication Network Configuration And Optimization

Posted on:2011-02-17Degree:MasterType:Thesis
Country:ChinaCandidate:J P LiuFull Text:PDF
GTID:2178330332469614Subject:Communication and Information System
Abstract/Summary:PDF Full Text Request
In today's information age, people have become increasingly demanding in communication field. We all want to be able to communicate correctly anytime, anywhere. However the micro-power wireless communications network will be able to achieve this aspiration. Micro-power frequency-hopping module is widely used in today's internet age for it's characteristics of its small size and easy to carry, a simple, strong anti-interference. As more and more user use frequency-hopping network, which has caused transmission channels more and more crowded, channel resources are more and more nervous, and also has led to more rather serious interference.Frequency-hopping is a kind of spread-spectrum technology. It's principle is through a set of pseudo-random sequence control carrier frequency hopping randomly to achieve the communication transceiver to communicate with each other. According to FH theory, We know that the frequency hopping is random hopping based on pseudo-random sequence. Under the control of the frequency hopping sequence of frequency hopping pattern is called frequency-hopping pattern. Therefore, the study of the frequency-hopping pattern is a important topic in frequency-hopping communication, which is also a prerequisite to ensure good quality of frequency-hopping communication.Based on the material effect of frequency-hopping pattern to the frequency-hopping communications and the frequency-hopping frequency, this article take the micro power frequency-hopping module as the platform, grasping the basic principle and the characteristic of the frequency-hopping communications and studying the theory limit of the frequency-hopping pattern design. This article also has discussed the constitution method of m sequence, the RS code, and the frequency-hopping pattern in turn, and has analyzed the performance of each kind of frequency-hopping pattern using the MATLAB simulation software, and has carried on the simulation to the frequency-hopping pattern's relevance, has carried on the contrast according to the simulation graph and the massive data under the different traffic environment' of the frequency-hopping pattern. Finally, the result is the frequency-hopping pattern of the RS codes is superior to the frequency-hopping pattern of the m sequences.
Keywords/Search Tags:frequency-hopping communication, frequency-hopping pattern, m sequences, RS codes
PDF Full Text Request
Related items