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Analysis of the effects of phase-noise in orthogonal frequency division multiplex (OFDM) systems
Proceedings IEEE International Conference on Communications ICC '95, 2002In OFDM transmission schemes, phase-noise from oscillator instabilities in the receiver is a potentially serious problem, especially when bandwidth efficient, high order signal constellations are employed. The paper analyses the two effects of phase-noise: inter-carrier interference (ICI) and a phase error common to all OFDM sub-carriers.
Robertson, P., Kaiser, S.
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Orthogonal Frequency Division Multiplex (OFDM)
2004Almost from the beginning of the electrical transmission of messages about 100 years ago, single-carrier methods have been used for transmitting information. The message to be transmitted is impressed on a sinusoidal carrier by applying analog amplitude, frequency or phase modulation techniques.
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Maximum bandwidth of orthogonal frequency division multiplex (OFDM) over multipath fading channel
2004 International Conference on Communications, Circuits and Systems (IEEE Cat. No.04EX914), 2004Orthogonal frequency division multiplex (OFDM) is known as an effective method for high-rate transmission over frequency selective fading channels. However, time variations of the channel within an OFDM symbol leads to a loss of orthogonality between subcarriers, resulting in interchannel interference (ICI).
null Zhou Kainan, null Chew Yong Huat
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2012 8th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2012
We propose to achieve scalable O-OFDM network planning with a genetic algorithm (GA) that operates in an adaptive way for high optimization efficiency. When the network topology and lightpath requests are given, the GA encodes the routing, spectrum and modulation assignments (RSMA) as genes and optimizes them iteratively.
null Wei Lu +3 more
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We propose to achieve scalable O-OFDM network planning with a genetic algorithm (GA) that operates in an adaptive way for high optimization efficiency. When the network topology and lightpath requests are given, the GA encodes the routing, spectrum and modulation assignments (RSMA) as genes and optimizes them iteratively.
null Wei Lu +3 more
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2015 International Seminar on Intelligent Technology and Its Applications (ISITIA), 2015
The main problem in high data rate transmision is frequency selective fading due to multipath propagation. This fading causes deep fade on signal spectrum at one particular frequency. To overcome this problem, many researchers proposed a multi-carrier technique, which divides wideband signal bandwidth into multiple narrowband signal before transmitted ...
Titiek Suryani +3 more
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The main problem in high data rate transmision is frequency selective fading due to multipath propagation. This fading causes deep fade on signal spectrum at one particular frequency. To overcome this problem, many researchers proposed a multi-carrier technique, which divides wideband signal bandwidth into multiple narrowband signal before transmitted ...
Titiek Suryani +3 more
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2020 IEEE Globecom Workshops (GC Wkshps, 2020
Optical wireless communication (OWC), with intensity modulation (IM), requires the modulated radio frequency (RF) signal to be real and non-negative. To satisfy the requirements, this paper proposes a novel mixed orthogonal frequency division multiplexing (X-OFDM) waveform. Hermitian symmetry (HS) of the sub-carriers in frequency domain, guarantees the
Xu Li +4 more
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Optical wireless communication (OWC), with intensity modulation (IM), requires the modulated radio frequency (RF) signal to be real and non-negative. To satisfy the requirements, this paper proposes a novel mixed orthogonal frequency division multiplexing (X-OFDM) waveform. Hermitian symmetry (HS) of the sub-carriers in frequency domain, guarantees the
Xu Li +4 more
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2016 10th IEEE International Conference on Anti-counterfeiting, Security, and Identification (ASID), 2016
The rapid development of wireless communication technologye provide users with more convenience but also accompanied serious interference problem in wireless communication. Resolution of interference problem become much important for communication process.
null Jun Huang +5 more
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The rapid development of wireless communication technologye provide users with more convenience but also accompanied serious interference problem in wireless communication. Resolution of interference problem become much important for communication process.
null Jun Huang +5 more
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2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003., 2005
Future, high bit rate communication systems tolerate very little error in the modulation. This means that conventionally negligible error sources like the imbalance between the in-phase (I) and quadrature (Q) branches of the receiver can start limiting the performance of the system.
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Future, high bit rate communication systems tolerate very little error in the modulation. This means that conventionally negligible error sources like the imbalance between the in-phase (I) and quadrature (Q) branches of the receiver can start limiting the performance of the system.
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2016 2nd International Conference on Applied and Theoretical Computing and Communication Technology (iCATccT), 2016
This paper presents the development of reconfigurable OFDM system for wireless communication system from a historical view. A review of research contributions to reconfigurable OFDM systems are summarized. These contributions comprise a development of reconfigurable OFDM system for Software Defined Radio, Implementation of reconfigurable digital ...
null Drakshayini M N, Arun Vikas Singh
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This paper presents the development of reconfigurable OFDM system for wireless communication system from a historical view. A review of research contributions to reconfigurable OFDM systems are summarized. These contributions comprise a development of reconfigurable OFDM system for Software Defined Radio, Implementation of reconfigurable digital ...
null Drakshayini M N, Arun Vikas Singh
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OFDM (Orthogonal Frequency Division Multiplexing) Simulation Applying Matlab
SSRN Electronic Journal, 2022Shreyam Chaurasia, Abhijit Kumar
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