An alternative multi-tone representation of complex signals for feedforward systems

Date

2004-12-01

Author

Coskun, Hakan
Mutlu, Ahmet
Demir, Şimşek

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

18
views

0
downloads

Signals used in wireless communication have various stochastic behaviors depending on the type of the modulation. The systems are nonlinear and analysis of these systems with various types of signals is tedious. Therefore developing a universal analysis method and representing any type of input signal with a certain model, such as multi-tone representation and modeling, simplify the analysis and design of these systems enabling initial rapid optimizations and understanding of the system performance. In this paper, an alternative multi-tone representation of complex signals and its application to feedforward systems are presented.

Subject Keywords

CDMA, Feedforward, Linearization, Multi-tone representation, Peak-to-average ratio, System modeling

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=14844314452&origin=inward
https://hdl.handle.net/11511/95261

Conference Name

Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Modeling of time domain represented signals with multitone signals Cansız, Gökhan; Demir, Şimşek; Department of Electrical and Electronics Engineering (2014) Signals in certain systems, such as the transmitted signal in a cellular communication system, are strongly time dependent, non-deterministic and stochastically not well defined. Predicting the performance of the transmitter with such a signal at its input is important for efficient operation. Therefore, it is crucial to model a given time dependent waveform by multi-tone signals, which enables analytical derivations. In this thesis, multi-tone representation is employed to model the varying envelope arbitr...
A new technique for line interference monitoring and reduction in biopotential amplifiers Ider, Yusuf Ziya; Koymen, H. (Institute of Electrical and Electronics Engineers (IEEE), 1990-6) Hardware developed to record the common mode line frequency signal on the body simultaneously with the ECG lead signals of a 15-channel computerized cardiograph is described. This interference reference signal and its quadrature, obtained by software, are linearly combined to be subtracted from any one of the channels to reduce the interference to below the quantization level of the 12 b A/D converter. Coefficients of the linear combination are estimated using linear regression, which is applied to the rela...
ADAPTIVE CONTROL OF POWER AMPLIFIER LINEARIZATION TECHNIQUES BY USING HYBRID ANALOG AND DIGITAL APPROACHES Abdulwahab, Bassam; Tayfun, Nesimoglu; Electrical and Electronics Engineering (2021-9) Power Amplifiers (PA) are widely used in mobile communication systems, yet power amplifiers have a non-linear region which is the major problem in all communication and radar systems. Moreover, PAs show a low power efficiency when operating in their linear region and are highly non-linear when operating in their high-efficiency region. To overcome such issues, there are different methods to linearize PAs and other methods to enhance their power efficiency. These linearization methods are built to meet a cer...
A Comparison of spatial modulation and spatial multiplexing systems in multipath fading channels Saygılı, Halil; Yılmaz, Ali Özgür; Department of Electrical and Electronics Engineering (2013) In this thesis, multiple antenna transmission techniques like spatial multiplexing, spatial modulation and multiple active spatial modulation are compared in multipath fading channels. Maximum likelihood sequence estimation (MLSE) based on the Ungerboeck observation model is the optimal operation for intersymbol interference channels and applied on the mentioned multiple antenna transmission strategies. The performance analysis based on Monte Carlo simulations and comparison of the computational complexity ...
Design and implementation of VHF-UHF antenna with non-foster matching circuit Aşcı, Cihan; Aydın Çivi, Hatice Özlem; Department of Electrical and Electronics Engineering (2018) Matching networks are widely used in the antenna transmitter and receiver applications and thus they are an essential part of the RF system. Conventional passive matching networks are very broadly used for matching an antenna for a narrow band of frequencies; however, achieving a broad bandwidth characteristics for electrically–small antennas (ESAs) is not possible with the use of passive matching circuits. ESAs possess a large input reactance and the electrical size of the antenna element is very small com...

Citation Formats

H. Coskun, A. Mutlu, and Ş. Demir, “An alternative multi-tone representation of complex signals for feedforward systems,” presented at the Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON, Atlanta, GA, Amerika Birleşik Devletleri, 2004, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=14844314452&origin=inward.