Study And Implementation Of MB-OFDM-UWB Baseband Transmission System

Ultra-wideband (UWB) is a novel short-distance wireless communication technology. It is featured with high system capacity, high transmission rate, low power consumption, low cost, multi-path immunity and many other advantages, and has got wide attention at home and abroad. The technology can meet the ever-growing demand for higher quality and rate media, and can be applied in many areas of digital communication, especially in the indoor environment of dense multi-path.Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) is considered as one of the major solution of UWB. Under the auspices of Multi-band OFDM Alliance (MBOA), the solution get support from nearly all prominent providers of silicon and end products for consumer electronics, personal computers and mobile devices. Nevertheless, the UWB technology based on multi-band is still in infancy stage on a global scale, especially at home, MB-OFDM-UWB technology is immature and imperfect, there are many issues need to be studied.In the thesis, based on the basic theory of ultra-wideband technology, a more detailed introduction of MB-OFDM-UWB physical layer frame format and structure is given. A baseband transmission system designed special for the MB-OFDM-UWB signal is proposed by consulting a lot of literature, at the same time, the baseband system and submodule of the system are studied and designed. At last, by using VHDL hardware description language and modular programming, dual-port RAM, ping-pong operation, IP Core call, and other programming skills, the baseband transmission system is designed and simulated in softwares of Xilinx ISE and Modelsim with a complete programming, synthesis, simulation, download and a series of simulation and implementation. The result of the synthesis and simulation show that the hardware design achieves desired objective and requirement.