Changes between Version 10 and Version 11 of FlexWaves
- Timestamp:
- 11/28/09 13:18:03 (15 years ago)
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FlexWaves
v10 v11 25 25 This waveform is a simple digital modem. It can be configured to perform BPSK, QPSK, QAM4, QAM64 and so on. The modulator/demodulator is a single program which can be instantiated as a modulator or demodulator. A binary source and a sink generate and reads random data. 26 26 27 The application can be loaded launching the following command on the runph command prompt: 28 {{{ 29 runph$: phload example 30 }}} 31 27 32 == UTRAN == 28 33 … … 33 38 Where (*) indicates that two transport channels transmit in parallel. The receiver chain implements the same modules in the opposite direction. 34 39 35 - The coder is a UMTS Turbo Coder for the data channel and a Convolutional Coder for the control one (viterbi decoder not yet implemented).40 - The coder is a UMTS Turbo Coder for the data channel and a Convolutional Coder for the control one (viterbi decoder not yet implemented). 36 41 - The ratematching component is specifically designed for the UMTS chain and can not be configured to operate in another context. 37 42 38 43 The waveform must operate at a period of 10ms, so this is the time-slot that should be fixed (see /usr/local/etc/platforms.conf). All components of each transport channel can operate at higher periods (20, 40, 80 ms). The component 'timemux' performs a time (de)-multiplexing of data frames and delivers 1 packet every 10ms to the channel. 39 44 45 The application can be loaded launching the following command on the runph command prompt: 46 {{{ 47 runph$: phload utran 48 }}} 40 49 41 50 == WiMAX ==