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Wireless communication system of cognitive function module

Author: BaiLe
Tutor: LiWeiYing；LiuQin
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: Cognitive radio FPGA DSP ARM
CLC: TN925
Type: Master's thesis
Year: 2009
Downloads: 191
Quote: 1
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Abstract


Cognitive radio is an intelligent wireless communication system. It can sense the surrounding of the wireless environment, through the analysis of the wireless environment, change accordingly some work parameters to real time to adapt to the environment, so as to improve the spectrum utilization efficiency and relieve the strain on spectrum. This paper mainly studies the cognitive radio system structure and the development and implementation of cognitive function, the hardware used in the development is based on DSP FPGA hardware platform of ARM. This article first briefly introduced the background and cognitive radio technology, key technology and related cognitive radio content. Then realize cognitive radio communication system is introduced in this paper the hardware software radio platform, and mainly describes the system structure, implementation scheme and main function module. Finally discusses cognitive radio function module design and implementation, in FPGA to complete the function of spectrum perception, the perception of data preprocessing, and establish the FPGA and DSP data interface; Using DSP to complete the spectrum management and spectrum analysis, basic MAC access function, and control and coordination of the whole cognitive system modules; Use the ARM as a data channel to establish the communication with the PC, auxiliary DSP control system.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Radio relay communications,microwave communications
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