Communication Technologies and Challenges on 6G Networks for the Internet: Internet of Things (IoT) Based Analysis

Vaigandla, Karthik Kumar

doi:10.1109/iciptm54933.2022.9753990

Cited by 24 publications

(11 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By delegating a slice of the frequency spectrum to each channel, FDM basically allows multiple communication channels to coexist. R.W.Chang proposed the original concept of OFDM [14]. A range of subcarriers can be created using OFDM in order to transmit data over a wide range of frequencies.…”

Section: Orthogonal Frequency Division Multiplexing (Ofdm)mentioning

confidence: 99%

“…OFDM's robustness to both phase noise and time selective channels can be determined by the spacing between its subcarriers [19]. By using multiplexing, data is grouped in packages of M for frequency multiplexing, which is known as OFDM symbol, a different carrying is modulated simultaneously on each data [14]. M data points are considered (S0, S1, …., SM-1), M data is divided into two sequences by time Ts.…”

Section: Orthogonal Frequency Division Multiplexing (Ofdm)mentioning

confidence: 99%

See 1 more Smart Citation

Study and Comparative Analysis of OFDM and UFMC Modulation Schemes

Vaigandla¹,

Siluveru²,

Karne³

2023

JECNAM

Self Cite

View full text Add to dashboard Cite

In various areas, wireless systems are used. In order to allocate the available time and frequency resources, these wireless systems require flexible mechanisms. With 5G, transmission rates will be higher, latency will be lower and quality of service and channel capacity will be higher. The physical layer must be able to generate flexible waveforms to meet the above requirements. Currently, Orthogonal Frequency Division Multiplexing (OFDM) transmission does not support 5G communication. In the case of 4G/OFDM, there are many problems in terms of out of band emission, spectral efficiency, and peak to average power ratio (PAPR). An alternative transmission scheme Universal Filtered Multicarrier (UFMC) is introduced to address this problem. The paper compares OFDM with UFMC. The purpose of this paper is to discuss Spectral Density, Spectral Efficiency, Signal to Noise Ratio (SNR) and Bit Error Rate (BER). In comparison to OFDM, UFMC provides better performance.

show abstract

Section: Orthogonal Frequency Division Multiplexing (Ofdm)mentioning

confidence: 99%

Section: Orthogonal Frequency Division Multiplexing (Ofdm)mentioning

confidence: 99%

Study and Comparative Analysis of OFDM and UFMC Modulation Schemes

Vaigandla¹,

Siluveru²,

Karne³

2023

JECNAM

Self Cite

View full text Add to dashboard Cite

show abstract

“…The consequence is that there is no frequency or time selective fading of QAM symbols when the proper frequency and time observation window is used. The signal is then routed through a multicarrier filter bank, providing the same benefits of filter shaping as other types of filtered OFDM [40]. The reverse processing is done at the receiving end.…”

Section: Ofdmmentioning

confidence: 99%

Study and Analysis of OTFS and OFDM

Siluveru¹,

Nanda²,

Karne³

2022

JAIMLNN

View full text Add to dashboard Cite

High mobility wireless communication systems have been proposed to be robust to channel-induced Doppler shift using Orthogonal Time Frequency Space (OTFS) modulation. The OTFS modulation technique is described in this paper. In addition to being in the delay-Doppler (DD) domain, OTFS has a unique and important feature. The OTFS modulation offers maximum diversity over frequency and time when coupled with an equalizer. This technique converts fading, time-varying wireless channels into time-independent, non-fading interactions that reveal their underlying geometry. Even in challenging 5G deployment settings, OTFS achieves Massive MIMO throughput gains by scaling throughput linearly with MIMO order. An analysis of peak to average power ratio (PAPR) of OFTS modulation wave forms is presented in this paper. OTFS with rectangular pulses is characterized analytically using the complementary cumulative distribution function (CCDF). The simulated CCDF for the PAPR of OTFS is compared with that for orthogonal frequency division multiplexing (OFDM) for different pulse shapes. The results show that OTFS has a better PAPR than OFDM.

show abstract

“…With these advantages in mind, it has a pretty excellent market penetration. WLAN is one of the most valuable technologies, and IEEE 802.11a/g/n designs successfully employ OFDM [4].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of PAPR minimization in OFDM System Using Clipping, SLM and PTS Techniques

Venkateswarlu¹,

Sravanya²,

Nyalapogula³

et al. 2023

IJRISE

View full text Add to dashboard Cite

In wireless communications, Orthogonal Frequency Division Multiplexing (OFDM) is a method of modulating multicarrier signals to transmit high speed data. OFDM systems use multiple subcarriers to transmit the modulated symbols. There is a high peak to average power ratio (PAPR) in OFDM. PAPR can be reduced by using various methods. Different PAPR minimization techniques, like clipping, selective mapping (SLM) and partial transmit sequence (PTS) are presented in this project. This paper also focuses on Bit Error Rate (BER) and Signal to Noise Ratio (SNR) relative performance. A significant reduction in the PAPR and computational complexity can be seen from the results. The purpose of this study is to compare the results of an analysis recommended for PAPR reduction methods.

show abstract

Communication Technologies and Challenges on 6G Networks for the Internet: Internet of Things (IoT) Based Analysis

Cited by 24 publications

References 12 publications

Study and Comparative Analysis of OFDM and UFMC Modulation Schemes

Study and Comparative Analysis of OFDM and UFMC Modulation Schemes

Study and Analysis of OTFS and OFDM

Performance Analysis of PAPR minimization in OFDM System Using Clipping, SLM and PTS Techniques

Contact Info

Product

Resources

About