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This paper, mainly, aims to present a full diversity scheme in the presence of a quasi-static Rayleigh fading channel and an MRC combiner in the receiver. This scheme is based on the fact that transmitted signal will be divided on several transmit antennas. Such scheme reduces the transmission time and increase the data rate. We will present a generic BER equation for this scheme and illustrate our...
This paper presents the design and implementation of a novel multi-antenna receiver front-end, which is capable of accommodating various multi-antenna schemes including spatial multiplexing (SM), spatial diversity (SD), and beamforming (BF). The use of orthogonal code-modulation at the RF stage of multi-antenna signal paths enables linear combination of all mutually orthogonal code-modulated RF received...
This paper present the results and performance of angle diversity for direction of arrival (DOA) setup. The 4times4 Butler matrix was been used at transmitter and receiver sides. The 2times2 rectangular patches have been used as a transmitter and receiver medium for wireless transmission. The operating frequency for this measurement is 2.4 GHz in WLAN application. This paper analyze about DOA and...
In this paper a technique is presented on how to enhance the received signals in a near field multi-input multi-output (MIMO) environment where beam forming is not possible. This is done through the use of adaptivity on transmit. Polarization diversity can also be implemented. This technique is based on the principle of reciprocity, is independent of the material medium in which it is transmitting,...
This paper presents the design of a novel 5 GHz multi-antenna RF front-end, which is capable of performing spatial multiplexing, spatial diversity, and beamforming. The use of a unique code-modulation scheme at the RF stages of the signal paths enables linear combination of all mutually orthogonal code-modulated received signals. The combined signal is then fed to a single RF/baseband/ADC chain, resulting...
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