This paper aims to improve the error rate performance of enhanced spatial modulation based orthogonal frequency division multiplexing (ESM-OFDM) system by jointly optimizing signal constellation and antenna power allocation (PA). We derive a closed-form expression for optimal PA ESM-OFDM scheme some practical setups then implement verify using an Universal Software Radio Peripheral (USRP) platf...

OFDM/OQAM is a special type of multi-carrier modulation that can be considered as an alternative to conventional OFDM with cyclic prefix (CP) for transmission over multipath fading channels. Indeed, as it requires no guard interval, it has the advantage of a theoretically higher spectral efficiency. Furthermore if the pulse shape is well-localized in frequency, the resulting OFDM/OQAM signal sa...

Orthogonal Frequency Division Multiplexing (OFDM) has been currently under intense research for broadband wireless transmission due to its robustness against multi-path fading. In multicarrier modulation, the most commonly used technique is OFDM, it has recently become very popular in wireless communication. The main drawback of OFDM is Peak to average power ratio (PAPR). This paper present sel...

Orthogonal frequency division multiplexing (OFDM) is becoming the chosen modulation technique for wireless communications. It can provide large data rates and is sufficiently robust in the face of radio channel impairments. Digital modulation techniques contribute to the evolution of our mobile wireless communications by increasing the capacity, speed and quality of wireless networks. In this p...

We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced filterbank-based multicarrier system (OFDM/OQAM). Indeed, on one hand, MC-CDMA has already proved its ability to fight against frequency-selecti...

In this letter, performance analysis of orthogonal frequency division multiplexing with index modulation (OFDM-IM) is presented in term bit error rate (BERs). The considers its under two impairments, symbol time offset (STO) and carrier (CFO) frequency-selective fading channel. As multicarrier system, OFDM-IM subject to both inter-symbol interference (ISI) inter-carrier (ICI) a new communicatio...

Orthogonal frequency-division multiplexing (OFDM) has been proposed as an enabling technique for elastic optical networks to support heterogeneous traffic demands by enabling rate and modulation adaptive bandwidth allocation. The authors investigate the energy efficiency of optical OFDM-based networks. A mixed integer linear programming model is developed to minimise the total power consumption...

The objective of the research is to analyze, at simulation level, effect M-Quadrature Amplitude Modulation (M-QAM) technique, in downlink, for a converged Radio over Fiber (RoF) network infrastructure, implementing Ortho-gonal Frequency Division Multiplexing (OFDM) technique and Passive Optical Network architecture, with 10 Gbps capa-city (XG-PON). evaluation M-QAM modulation was done through p...

This paper studies a novel Radar and wireless communication fusion system namely, RadCom, using orthogonal frequency division multiplexing index modulation waveforms. From the perspective, information is conveyed not only through modulated subcarriers but also by active subcarrier indices that are dynamically updated at transmitted symbol rates. When compared with conventional systems, subset o...

The goal of this contribution1 is twofold: i) an overview on the vast literature on recent advances related to OFDM modulators is given: Cyclic-Prefix OFDM, Zero-Padded OFDM, PseudoRandom-Postfix OFDM and IOTA-OFDM; these are identified to be potential candidates for fourth generation mobile communication networks in the framework of the IST-WINNER project. ii) The advantages/disadvantages of t...