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This paper presents and compares the BER performances of different antenna array geometries. The uniform circular array (UCA) and uniform rectangular array (URA) are implemented with the trellis coded modulation (TCM) and the least mean square (LMS) algorithm. The influence of array geometries is examined on the BER in well-separated-signals and in random-direction-signals environments.
In this paper, the minimum-mean-square-error (MMSE) in a mutual coupling (MC) environment is derived. The MMSE is slightly degraded by MC with receiver noise but it is not affected with environmental noise. Analysis also shows that data domain MC compensation cannot improve the minimum MSE even if the estimate of MC is accurate. The simulations also show that MC slows down the convergence of the least...
This paper presents the system model of an adaptive UCA along with trellis coded modulation (TCM) to investigate the bit error-rate (BER) of a wireless system in an intensive co-channel interference environment. It is shown that adaptive array systems do have great BER performance over traditional wireless systems. The UCAs generally have better performance than ULAs in a random direction signal environment.
This paper shows that the adaptive LMS beamformer can recover the desired signal even though the beamforming pattern is distorted. In addition, an MC compensation method for the beamforming pattern is also presented
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