Abstract
A continuous phase modulation (CPM) implementation alternative of a recently standardized class of Feher-patented quadrature phase-shift keying (FQPSK-B) modulation is proposed. It is based on the fact that FQPSK-B signal has quasi-constant amplitude and continuous phase characteristics, allowing CPM interpretation. Based on this, we derive the modulation index, premodulation filter and alternating change monitor differential encoder for the CPM generated FQPSK-B signal to be fully compatible with original I/Q-modulated one. It is shown that the power spectral density and the bit error rate performance of CPM generated FQPSK-B signal are almost the same as those of I/Q modulated FQPSK-B signal.
| Original language | English |
|---|---|
| Pages (from-to) | 692-695 |
| Number of pages | 4 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 58 |
| Issue number | 1 |
| State | Published - 2003 |
| Event | 2003 IEEE 58th Vehicular Technology Conference, VTC2003-Fall - Orlando, FL, United States Duration: 6 Oct 2003 → 9 Oct 2003 |