Abstract
The rate compatible punctured convolutional code (RCPC code) is an important module in Multi-band Orthogonal Frequency Division Multiplexing Ultra Wide Band (MB-OFDM-UWB) indoor positioning system introduced in this paper as a kind of useful channel coding to offer more protection against all kinds of channel noise under indoor channel environments. In this paper, RCPC code for MB-OFDM-UWB indoor positioning system is designed. And then, two different structures for the implementations of RCPC code are presented respectively. The two different structures of RCPC Code are implementated based on Field Programmable Gate Array (FPGA) chip with the software tools of ISE Foundation and ModelSim. The simulation results show that the performance of parallel structure is better than that of pipe line structure and that it’s convenient to implement based on a mother code rate of 1/3 the punctured convolutional code with different code rates that are needed by different modules of the OFDM-UWB indoor positioning system.
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