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OFDM Baseband Processor
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Overview Noesis Technologies ntOFDM_BBP is a custom baseband processor, which implements the physical layer of an OFDM, time division duplexing (TDD) system. The baseband processor includes both transmission and reception bit-level and symbol-level processing chains including a sophisticated synchronization unit. The host interface is based on SPI protocol as well as with handshaking/interrupt ports. This custom system implements a subset of 802.16d standard functional options/features and is highly configurable via the integrated register file. An RF interface module is also included, compatible with Analog Devices AD9361 RF transceiver.
The Bit-level processing block (BLPB) transmission chain implements the following functional units : randomization, FEC encoding, interleaving and symbol mapping. In BLPB reception chain the following operations are implemented: soft symbol demapping, deinterleaving, FEC decoding and derandomization. The FEC module is based on the implementation of the Reed Solomon algorithm.
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