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Delay compensation for 4G/5G transmitter system characterization

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The 4G and 5G communication system propose and anticipate signals, algorithms, or schemes such as carrier aggregation to provide better data rate and bandwidth requirements. To fulfil such requirements, there… Click to show full abstract

The 4G and 5G communication system propose and anticipate signals, algorithms, or schemes such as carrier aggregation to provide better data rate and bandwidth requirements. To fulfil such requirements, there is a need to represent the transmitter accurately in simulation scenario to observe the impact of new algorithms on system level. The transmitter system characterization requires modeling of relation between input and output signals. However, there is a delay between transmitted and received signal which needs to be compensated. This letter proposes a modified frequency domain time delay compensation technique, which is more effective in estimating the time delay in case of carrier aggregated signals composed of multiple widely spaced component carriers. It has been tested on a software defined radio platform which can also be used for transmitter modeling. Significant improvement of 4 dB approximately in the term of normalized mean square error between transmitted and received signal has been reported.

Keywords: transmitter system; system; delay compensation; transmitter; system characterization

Journal Title: Microwave and Optical Technology Letters
Year Published: 2017

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