The Software Reconfiguration Research Of The New Generation Wireless Communication System

The focus of designing conventional wireless communication system is the hardware. And the manufacture and development of the products are in accordance with specialized standard. This kind of development mode can not meet the requirements of communication system nowadays. Moreover, it hinders the further development of wireless communication technique severely. The wireless communication system of next generation is supposed to possess unified hardware platform, be compatible with different communication standards, be software reconfigurable, and be adaptive to the network environment by constructing different systems dynamically to implement seamless handover among different standards.In order to solve the problems above, software communication architecture (SCA) emerged. SCA is developed by the U.S. army in the purpose of developing future tactic wireless communication system. As one way to realize software defined radio (SDR), it provides detailed specifications to the design and development of wireless communication system, and establishes the framework which is independent of the hardware. To ensure the transplantable and reconfigurable capability, SCA defines the framework of hardware, software and security in detail.Based on the research of SCA in the background of wireless communication, in order to get rid of the design idea oriented for application, we can realize the generalization, modularization and software transplantable capability of hardware platform by the highly modularized common signal processing platform to free the services of communication equipment from the hardware characteristic and loading different software to configure to systems dynamically, hereby satisfying the requirements of the new generation wireless communication system.This article described the SCA some basic core rule, has obtained itself to SCA the understanding. The union unified the platform to the correspondence system recognition, the realization of the core framework, application of CORBA (Common Object Request Broker Architecture), the development of waveform component as well as software's construction and so on , have carried on a more detailed elaboration. In the research process, follows the SCA standard strictly, uses construction which the embedded processing module and general PC unify, utilizes the object-oriented thought to conduct the research to platform software's restructuring. Opens the source storehouse through Winpcap, has realized PC and between the embedded processing module high speed data correspondence. Under the PC environment, through Visual C++, has realized the new generation wireless communication system's receiving end and the transmitting end in GSM, WCDMA and WiMAX and so on under many kinds of correspondence system environment software restructurin,and gives part of the relevant codes during the research.