An efficient Reconfigurable architecture for software Defined radio

Abstract

The advancements in wireless technologies have been newlineincreased steadily rapidly which leads demands over system design newlineand implementation to support all newly emerging standards. Thus, newlinebuilding a system that ensures compatible with various wireless newlinestandards has gained a lot of interest. As a result, software defined newlineradios (SDRs) are highly motivated for wireless device modelling due newlineto its flexibility and scalability over other conventional wireless newlinedesign solutions. SDR is different from other conventional radios by newlineutilizing the software programs which is running on a host to newlineimplement different protocols. newlineThis thesis mainly focuses the design challenges related to newlineSDR system implementation for most compatible device model which newlinecan support wide range of wireless communication system. This work newlineoutline some of the major requirements of SDRs for next generation newlinewireless communication system which includes optimized system newlinearchitecture, achievable data rate and energy constrains. Different newlinestandards involved in various wireless applications impose strict newlinedesign requirements on the processing platforms. Realizing these newlinedemands, through appropriate signal processing measures in SDR newlinesystem while maintaining inherent potential metrics like newlinereconfigurability and flexibility is a challenging topic that is newlineaddressed in this thesis. newlineFirstly, this thesis investigates the challenges of a newlinereconfigurable multi modulation baseband modulator design for SDR newlinesystems as an attempt to support different wireless standards. The newlinevi newlinereconfigurability is evaluated with respect to the appropriate symbols newlinegenerations and analyzed its performance metrics through hardware newlinesynthesize results. newlineFurthermore, a reconfigurable canonical sign digit concept newlineis developed for effective implementation of Finite Impulse Response newline(FIR) filters. This is carried out with different FIR taps, which is a newlinedifficult task to accomplish due to the complexity trade off. Different newlineFIR channelization architectures are developed using root cosine filter newlinespecificat