Researching on the relationships among different multiple weighted type fractional Fourier transform (multi-WFRFT) schemes, we in this paper provide the modulation order relation of different multi-WFRFT in theory. Moreover, we also prove that the two matrix spaces (i.e., 4-WFRFT and multi-WFRFT) are equivalent. To apply multi-WFRFT into the wireless communication, we design the implementation ...

In this contribution, the benefit of applying channel knowledge at the transmitter is investigated for multi-carrier spread-spectrum (MC-SS) systems. Two different MC-SS systems are observed, namely uplink multi-carrier code-division multiple-access (MCCDMA) and spread-spectrum multi-carrier multiple-access (SSMC-MA). The latter system is considered for both downand uplink transmission. Pre-equ...

the opportunity of a detailed link adaptation scheme. The combination of these transmission-and multiple access techniques in OFDM-FDMA is an ideal and very strong candidate for the downlink of future 4G mobile communication systems. This technical combination offers high cell capacities by exploiting the inherent multi user diversity effect of the system. To apply OFDM-FDMA in the uplink, the ...

This paper proposes a new blind adaptive channel shortening approach for multi-carrier systems. The performance of the discrete Fourier transform-DMT (DFT-DMT) system is investigated with the proposed DST-DMT system over the standard carrier serving area (CSA) loop1. Enhanced bit rates demonstrated and less complexity also involved by the simulation of the DST-DMT system.

This paper is on multi-carrier wireless communication system, focusing on the physical layer in such modulation system. Multi-Carrier MC system has received much attention in modern communication technology and is finding attractive applications. The paper introduces and discusses the discrete cosine transform DCT-based MC. Similarities and differences with respect to the Fourier transform-base...

This paper proposed the comparison made between Multi-Carrier Pulse Width Modulation, Sinusoidal Pulse Width Modulation and Selective Harmonic Elimination Pulse Width Modulation technique for minimization of Total Harmonic Distortion in Cascaded H-Bridge Multi-Level Inverter. In Multicarrier Pulse Width Modulation method by using Alternate Position of Disposition scheme for switching pulse gene...

Several new multi-carrier transmission techniques such as Filter Bank Multi-Carrier (FBMC), Universal Filtered Multi-Carrier (UFMC), and Generalized Frequency Division Multiplexing (GFDM) are being proposed as alternatives to orthogonal frequency division multiplexing (OFDM) for future wireless communication systems. Since multiple-input multipleoutput (MIMO) will be an integral part of the 5th...