Ara
Toplam kayıt 46, listelenen: 11-20
Cyclic feature concealing cp selection for physical layer security
(Institute of Electrical and Electronics Engineers Inc., 2014)
Cyclic prefix (CP) utilizing techniques such as orthogonal frequency division multiplexing (OFDM) and singlecarrier frequency domain equalization (SC-FDE) offer significant advantages in equalizing the effect of time ...
Performance analysis of frequency domain im schemes under CFO and IQ imbalance
(Institute of Electrical and Electronics Engineers Inc., 2019)
Next generation of mobile networks is the key area of research with increasing demand for new applications and use cases. In order to satisfy the applications with high data rate, high reliability, and low latency, ...
Sparse coding for transform domain-based sparse OFDM channel estimation
(IEEE-Inst Electrical Electronics Engineering Inc, 2019)
In orthogonal frequency division multiplexing (OFDM) systems, frequency domain pilot-aided channel estimation is based on interpolating a down-sampled version of the channel frequency response. This is achieved by transforming ...
Waveform-domain NOMA: The future of multiple access
(Institute of Electrical and Electronics Engineers Inc., 2020)
This paper introduces a novel non-orthogonal multiple access (NOMA) concept named waveform-domain NOMA, which proposes the coexistence of different waveforms in the same resource element (RE). Regarding the demands of each ...
Application-based coexistence of different waveforms on non-orthogonal multiple access
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2021)
In the study, the coexistence of different waveform structures on the same resource element is studied under the theory of non-orthogonal multiple access (NOMA). This study introduces a paradigm-shift on NOMA towards the ...
Floating OFDM-SNM for PAPR and OOBE reduction
(Institute of Electrical and Electronics Engineers Inc., 2021)
The novel orthogonal frequency division multiplexing with subcarrier number modulation (OFDM-SNM) transmission scheme offers high spectral and energy efficiency compared to the conventional OFDM; this is due to the extra ...
OFDM and alternative waveforms
(Institution of Engineering and Technology, 2020)
This chapter aims to provide an in-depth understanding of orthogonal frequency division multiplexing (OFDM) as well as its performance in the presence of a multipath channel and various impairments. Also, major alternative ...
Mixed numerology OFDM and interference issues
(Institution of Engineering and Technology, 2020)
The upcoming generations of wireless communications are characterized by a wide variety of applications. This necessitates a provision of flexible radio access technologies (RATs) capable of adapting to changing user (and ...
Estimation and exploitation of multidimensional sparsity for MIMO-OFDM channel estimation
(Institute of Electrical and Electronics Engineers Inc., 2022)
Obtaining accurate channel state estimates at reasonable training overheads remains a big challenge for the applicability of multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM). Recently, ...
Blind numerology identification for mixed numerologies
(IEEE - Institute of Electrical and Electronics Engineers, Inc, 2021)
5G New Radio (NR) introduces new flexibility that different numerologies can be selected to meet the requirements of a wide variety of services. For this new structure, blind numerology identification can increase system ...