ICI reduction in OFDM systems by using improved sinc power pulse

Kumbasar, Volkan; Kucur, Oğuz

doi:10.1016/j.dsp.2007.03.010

Cited by 73 publications

(105 citation statements)

References 11 publications

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“…A generic P-OFDM scheme follows the general signal structure of (3) and allows the use of flexible pulse shapes to balance the time and frequency domain localization of the signal power [19] but including also the use of a CP to counteract ISI. P-OFDM allows the pulse shape to extend over the symbol period, allowing successively transmitted symbols to overlap.…”

Section: P-ofdmmentioning

confidence: 99%

Multicarrier Waveform Harmonization and Complexity Analysis for an Efficient 5G Air Interface Implementation

García‐Roger

Roger

Valgas

et al. 2017

Wireless Communications and Mobile Computing

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The coexistence of multiple air interface variants in the upcoming fifth generation (5G) wireless technology remains a matter of ongoing discussion. This paper focuses on the physical layer of the 5G air interface and provides a harmonization solution for the joint implementation of several multicarrier waveform candidates. Waveforms based either on cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) or on filter bank multicarrier (FBMC) are first presented through a harmonized system model. Complexity comparisons among five different waveforms are provided. Then, the complexity of a proposed configurable hardware implementation setup for waveform transmission and reception is evaluated. As a result, the harmonized transmitter and receiver exhibit 25-40% and 15-25% less complexity in floating-point operations, respectively, in comparison to two standalone implementations of the most complex waveform instances of the CP-OFDM and FBMC families. This highlights the similarities between both families and illustrates the component reuse advantages associated with the proposed harmonized solution.

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Section: P-ofdmmentioning

confidence: 99%

Multicarrier Waveform Harmonization and Complexity Analysis for an Efficient 5G Air Interface Implementation

García‐Roger

Roger

Valgas

et al. 2017

Wireless Communications and Mobile Computing

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“…So the main purpose of pulse shaping is to reduce the amplitude of side lobes and hence reduce the ICI power. Improved sinc power pulse (ISP) [7] is proposed, in which exp(−a(f T ) 2 )sinc n (f T ) is used to reduce the amplitude of side lobes. Here a is a design parameter to adjust the amplitude and n is the degree of the sinc function.…”

Section: Analysis Of Ici In Ofdmmentioning

confidence: 99%

“…ICI degrades the performance of OFDM, so ICI is the main issue of OFDM. Many methods have been proposed to mitigate the ICI in literature, including self -cancellation [3]- [5], pulse shaping [6]- [7] etc.…”

Section: Introductionmentioning

confidence: 99%

ICI Reduction using Quadrature Kalman Filter for OFDM System

Bishnu¹,

Jain²,

Shrivastava³

2013

IJCA

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Orthogonal frequency division multiplexing (OFDM) is a technology for high data rate broadband wireless communication system. It provides high spectral efficiency. The main limitation which degrades the performance of OFDM is inter-carrier interference (ICI), which is caused by Doppler frequency offset and transceiver local oscillator frequency offset. To mitigate ICI effect, a new method of ICI reduction using quadrature Kalman filter (QKF) is proposed and investigated. In this paper, we compared proposed method with pulse shaping and self-cancellation methods of ICI reduction for different digital modulation scheme. For simulation purpose AWGN channel is considered and results show that the proposed method outperforms the existing ICI reduction methods.

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“…[6], [7]. The orthogonal Frequency division multiplexing (OFDM) a multi carrier system can be thought of as a solution and is used in lications such as asymmetric digital subscriber rates possible over pair copper wires [8], [9], it has also been accepted for several wireless LAN standards, as well as a number of mobile ations [1], [10] and protocols like IEEE 802.11a standard, terrestrial digital video broadcasting (DVB-T) and digital audio broadcasting (DAB) [11]. The purpose of this paper is to investigate how OFDM performs in an e (AWGN) channel for different Raised cosine, FIR Nyquist and .…”

Section: ------------------------------------------------------------mentioning

confidence: 99%

Effects of Filtering on Ber Performance of an Ofdm System

Kaur¹

2013

IJRET

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Index Terms: AWGN, ICI, OFDM, Bit E ----------------------------------------------------------------------- INTRODUCTIONHigh bit error rate(BER) and high bandwidth efficiency the major desiresfor modern communication sy the needs for a variety of new and high quality services developed and delivered to the society [1]. The effect of multipath delay, spread and fading of signals in the wireless environment is usually unavoidable [2], [3]. Extreme fading of the signal amplitude and Inter Symbol Int introduced during transmission through t channel and frequency selectivity of the channel appearing at the receiver side [4], [5] are responsible for a high probability of errors and reduced overall performance of the system. Several methods like adaptive equalization and channel coding have been developed to reduce the above effect.[6], [7]. The orthogonal Frequency division multiplexing (OFDM) a multi carrier system can be thought of as a solution and is used in several applications such as asymmetric digital subscriber lines (ADSL), a system that makes high bit-rates possible over twisted-pair copper wires [8], [9], it has also been accepted for several wireless LAN standards, as well as a number of mobile multimedia applications [1], [10] and protocols like IEEE 802.11a standard, terrestrial digital video broadcasting (DVB T) and digital audio broadcasting (DAB) [11]. The purpose of this paper is to investigate how OFDM performs in an Additive White Gaussian Noise (AWGN) ch pulse shaping filter like Raised cosine, FIR Nyquist and Matched SQRT Raised Cosine. In this channel one path between transmitter and receiver and attenuation and noise is considered. In this paper, we define the simulation methodology of OFDM in section 2 and simulate the OFDM system using Matlab. The mathematical model and theoretically simulated constellation diagrams for various pulse shapes are presented and a procedure for symbol IJRET: International Journal of Research in Engineering and

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ICI reduction in OFDM systems by using improved sinc power pulse

Cited by 73 publications

References 11 publications

Multicarrier Waveform Harmonization and Complexity Analysis for an Efficient 5G Air Interface Implementation

Multicarrier Waveform Harmonization and Complexity Analysis for an Efficient 5G Air Interface Implementation

ICI Reduction using Quadrature Kalman Filter for OFDM System

Effects of Filtering on Ber Performance of an Ofdm System

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