Flexible Implementation of Multi-standard Demapper using Lab View (T-0403) (MFN 5796)

Abstract

Wireless communication standards are evolving rapidly and hence new waveforms are introduced to achieve better spectral efficiency. In a wireless communication system constellation mapping on transmitter side and soft demapper on receiver side are major building block of transmission chain. To construct these different waveforms various standards, support different waveforms constellation mapping ranges from BPSK to 256-QAM are used in different standards. The other related parameters could be use of rotated constellation. In order to comply with multi standards, the demapper should be capable of handling all constraint imposed by the transmitter. This thesis is aimed at hardware implementation of reduced complexity future DVB demapper capable of supporting QPSK to 256-QAM with rotated style in a non-iterative demodulation context. Parameterized hardware implementation is carried out to access the trade-offs between earlier used algorithms and techniques in terms of rapid prototyping in addition to flexibility, throughput and area consumed. The implementation is carried out on NI USRP RIO Kintex 7 device. For rapid prototyping LabVIEW tool kit and associated design flow has been adopted. Synthesis results of our design show that our architecture achieves better throughput over area ratio while comparing with other implementations for most recent DVB-T2 standard.