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 EFFECT ON THE PERFORMANCE OF MULTICARRIER AND MIMO SYSTEMS CHANNEL ESTIMATION OF WIRELESS CHANNELS.
Наименование:

EFFECT ON THE PERFORMANCE OF MULTICARRIER AND MIMO SYSTEMS CHANNEL ESTIMATION OF WIRELESS CHANNELS.

автор Khawza A. издательство Книга по Требованию Организация здравоохранения
Cтраниц 180        мягкая обложка       
Аннотация:Simulations and numerical examples reinforce our findings. In order to mitigate the loss of performance, a power allocation scheme that distributes the total power optimally between the training and data symbols is devised. In communication systems, acquisition of the channel state information (CSI) via training is desirable to remove the distortions experienced by the subsequent information symbols. The analyses are extended to multiple-input-multiple-output (MIMO) systems with space-time codes. The expressions of bit-error probability (BEP) and pairwise error probability (PEP) are obtained and the loss of performance due to training is quantified. In this dissertation, the performance of OFDM systems is analyzed over a quasi-static fading channel where the channel is estimated through training and used for decoding. With the advent of the wireless broadband era, multicarrier technology such as orthogonal frequency division multiplexing (OFDM), and multiple transmit and receive antennas in the physical layer of communication systems appear to be favorable solutions to achieving higher data rates within the costly and scarce frequency spectrum.
Автор: Khawza A.
Издательство: Книга по Требованию
Год:2010
Цена:
2783 руб
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