Research and Implementation of Multi-antenna Channel Estimation and Space-Time Decoding Based on the Uplink of IEEE 802.16e Standard
|School||Xi'an University of Electronic Science and Technology|
|Course||Spatial Information Science|
|Keywords||Channel estimation Space-time decoding IEEE802.16e FPGA|
With the development of information industry , wireless technology has become the biggest hot spots , has the characteristics of mobile , broadband and IP -based IEEE 802.16e WiMAX wireless access technology , is a great potential for development of communication technology in recent years the market . This paper first introduces the IEEE 802.16e physical layer standard , channel estimated principle and MIMO technology analysis uplink MIMO-OFDMA link structure and channel modeling method based on the 802.16e standard . 802.16e UL-PUSC pilot mode domain multi-antenna channel estimation algorithm , which position pilot channel estimation using LS and LMMSE algorithm , the location of the data channel estimation using the interpolating polynomial fitting algorithm . Uplink multi-antenna link simulation model using MATLAB structures in the ITU-RM.1225 channel model , given the variety of channel estimation algorithm for floating-point simulation results , from considering the complexity of the algorithm , the MSE and BER performance , given UL-PUSC domain multi-antenna conduction the frequency mode channel estimation scheme -LS and frequency domain interpolation algorithm . Upstream of space-time encoding and decoding algorithm , and the completion of the floating point performance simulation . Channel estimation and STBC decoding algorithm based on the floating - point emulation fixed-point simulation and FPGA design parameters . Finalization of channel estimation and the STBC decoding module of FPGA implementation, and analysis of simulation results and resource consumption , and to verify the correctness of the module .