In this paper, a novel waveform with low peak-to-average power ratio (PAPR) and high robustness against phase noise (PN) is presented. It follows the discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) signal model. This scheme, called 3MSK, inspired by continuous-phase shift keying (CPFSK), but it uses three frequencies in baseband model – specifically, 0 ...

In this paper, a 7-level Diode Clamped Multilevel Inverter (DCMLI) is simulated with three different carrier PWM techniques. Here, Carrier based Sinusoidal Pulse Width Modulation (SPWM), Third Harmonic Injected Pulse Width Modulation (THIPWM) and Modified Carrier-Based Space Vector Pulse Width Modulation (SVPWM) are used as modulation strategies. These modulation strategies include Phase Dispos...

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 alterna...

How to calculate the symmetric information rate (SIR) for continuous phase channels is given. This problem has traditionally been viewed highly complicated due to nonlinearity of the modulation. Through the simulated SIR it can be observed that using continuous phase modulation (CPM) in a multiple antenna system (MIMO) will likely produce both high performance and high throughput. As the optimu...

The method of multiple trellis-coded modulation is applied to continuous phase modulation (CPM). Especially double trellis-coded quaternary CPM schemes using convolutional codes with an effective rate 2/4 are considered. Tables of optimum codes and minimum Euclidean distances are given for several frequency impulses and numbers of trellis branches per symbol interval, which have to be processed...

In this paper we propose an energy efficient OFDM transmission scheme. Two CPM (continuous phase modulation) schemes are introduced to OFDM, keeping in view the constant envelope and continuous phase changing nature of CPM modulation. Energy efficiency of the proposed scheme is investigated by simulating PAPR (peak to average power ratio) and is compared with the conventional OFDM scheme. The i...

The combination of space-time coding (STC) and continuous phase modulation (CPM) is an attractive field of research because both STC and CPM bring many advantages for wireless communications. Zhang and Fitz [1] were the first to apply this idea by constructing a trellis based scheme. But for these codes the decoding effort grows exponentially with the number of transmitting antennas. This was c...

This study revokes the performance of continuous phase modulation (CPM) able to generate a single-sideband (SSB) spectrum directly. signal is analyzed in terms indices, pulse lengths, and widths, all which affect error probability, bandwidth, SSB property, receiver complexity. The probability based on an approximation minimum Euclidean distance. A numerical power spectral density calculation fo...