Performance Analysis of MIMO-OFDM-IM System Using Rayleigh Fading Channel

Agrawal, Anand; jain, Aman; Singh, R. S. Pratap; Nagar, Arvindra Kant

doi:10.1007/978-981-19-0707-4_54

Cited by 2 publications

(3 citation statements)

References 13 publications

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“…These encoded data are then interleaved in the form of bit streams, with the objective of achieving variety. Subsequently, the grouped and mapped data is associated with the corresponding points in the constellation [14]. The data is organized in complex numbers and arranged in a sequential manner.…”

Section: Orthogonal Frequency Division Multiplexing (Ofdm)mentioning

confidence: 99%

Study and Analysis of OFDM under Rayleigh fading Channel using Various Modulation Methods

Sowmya,

Uday Kiran,

Mokshith Reddy

et al. 2023

Mesopotamian Journal of Computer Science

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Orthogonal Frequency Division Multiplexing (OFDM) is well recognized as a very efficient multicarrier technology. OFDM has witnessed a significant increase in its utilization within contemporary wideband digital communication systems. The technology possesses several notable benefits, including its capacity to effectively manage challenging channel circumstances, optimize spectrum utilization, mitigate inter symbol interference (ISI), and support high data transmission rates. Hence, it has been employed in several forthcoming wired and wireless communication systems, such as 4G LTE mobile communications. This work primarily concentrates on the performance assessment and investigation of the OFDM system in the presence of Rayleigh fading channels. By analyzing the outcomes of simulations, we may gain insights into various impacts and signal-to-noise ratios (SNRs). In order to determine their respective signal delivery capabilities, channels are compared and ranked. The evaluation of system performance involves assessing the quality of received signals, including factors like as signal quality, bit-error rates (BERs), and peak signal-to-noise ratios (PSNRs).

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Section: Orthogonal Frequency Division Multiplexing (Ofdm)mentioning

confidence: 99%

Study and Analysis of OFDM under Rayleigh fading Channel using Various Modulation Methods

Sowmya,

Uday Kiran,

Mokshith Reddy

et al. 2023

Mesopotamian Journal of Computer Science

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show abstract

“…Moreover, the OFDM avoids the MIMO system from taking multipath fading and also eliminates the ISI within the MIMO channel. While integrating the OFDM with the MIMO system, the MIMO utilizes the advantages of OFDM to effectively enhance the link reliability between the transmitter and receiver side 18–20 …”

Section: Introductionmentioning

confidence: 99%

“…While integrating the OFDM with the MIMO system, the MIMO utilizes the advantages of OFDM to effectively enhance the link reliability between the transmitter and receiver side. [18][19][20] The developing trend in future-generation WCs predicts that integrating various communication designs, transport alternatives, and switching technologies will become more significant. The MIMO-OFDM technique improves the WC system performance by increasing transmission speed, channel capacity, and bit rate.…”

mentioning

confidence: 99%

A novel Block Bi‐diagonalization based pre‐coding scheme for bit error reduction in mutiple input multiple output‐orthogonal frequency division multiplexing

Paul

Roy

Bhattacharjee

2023

Int J Communication

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The MIMO-OFDM increases spectral efficiency without the use of channel state information (CSI). However, the bit error rate (BER) in the MIMO-OFDM model increases dramatically due to the increase in nonlinear distortion in the power amplifier (PA). In this research, a novel pre-coder integrated MIMO-OFDM technology is designed for effective BER reduction, and its performance is analyzed. The discrete wavelet-based OFDM system is one of the key ideas to present good orthogonal by emphasizing orthogonal wavelets. It helps to mitigate inter-symbol interference (ISI) and noise within the channel by extending the bandwidth (BW) compared to conventional OFDM systems. But, DWT-OFDM highly suffered due to downsampling, which degrades system efficiency. To overcome this, a redundant discrete wavelet transform (RDWT) is proposed in this article to enhance spectral efficiency. For modulation, 16-bit quadrature amplitude modulation (QAM) is introduced in this work. In addition to this, a block bi-diagonalization (BBD) pre-coder technique is proposed to mitigate unwanted noise and interference in the MIMO-OFDM system. The performance measures such as ergodic sum capacity, BER, throughput, average jitter noise power, mean square error (MSE), and power consumption are analyzed using the MATLAB platform. The proposed method obtains the ergodic sum capacity of 6.25 bps/Hz, a BER of 0.021, a throughput of 95.2%, MSE of À0.47, and a power consumption of 1.15 μW. The simulative results prove the efficacy of the proposed method.16-bit QAM, bit error rate reduction, block bi-diagonalization pre-coder, MIMO-OFDM, redundant discrete wavelet transform | INTRODUCTIONThe design of the future wireless system is one of the key areas of interest for researchers and scientists. 1 Nowadays, the number of users increases due to the tremendous growth of wireless applications. Hence, an effective communication system is highly required under cost and low hardware complexity. The MIMO model is one of the efficient communication systems that can integrate multiple users and allocate effective channels for smooth communication. The MIMO antenna consists of multiple transmitting and receiving antennas widely used in wireless communications

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Performance Analysis of MIMO-OFDM-IM System Using Rayleigh Fading Channel

Cited by 2 publications

References 13 publications

Study and Analysis of OFDM under Rayleigh fading Channel using Various Modulation Methods

Study and Analysis of OFDM under Rayleigh fading Channel using Various Modulation Methods

A novel Block Bi‐diagonalization based pre‐coding scheme for bit error reduction in mutiple input multiple output‐orthogonal frequency division multiplexing

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