Circular Antenna Array to Suppress the Cochannel Interference in MIMO-OFDM Wireless Communication Systems
نویسندگان
چکیده
This paper proposes the circular antenna array to suppress the cochannel interference for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) modulation systems. The conventional cochannel interference suppression system employs the linear antenna array in the receiver side, and the capability of circular antenna array in suppressing cochannel interference is not investigated so far. This paper proposes the circular antenna array to the conventional cochannel interference suppression system, and derives a theoretical measurement for evaluating the cochannel interference suppression capability. Computer simulations under IEEE 802.11a demonstrate the validity of the proposed circular antenna array.
منابع مشابه
Joint Filtering Scheme to Suppress the Cochannel Interference in MIMO-OFDM Mobile Communication
This paper proposes a novel joint filtering technique in order to suppress the cochannel interference for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) modulation systems. There are conventionally two techniques to suppress cochannel interference: 1) spatio-temporal filtering (STF) the received signals prior to the fast Fourier transform (FFT), termed p...
متن کاملAdaptive antenna arrays for OFDM systems with cochannel interference
Orthogonal frequency-division multiplexing (OFDM) is one of the promising techniques for future mobile wireless data systems. For OFDM systems with cochannel interference, adaptive antenna arrays can be used for interference suppression. This paper focuses on a key issue for adaptive antenna arrays, that is, parameter estimation for the minimum mean square error (MMSE) diversity combiner (DC). ...
متن کاملSpectral Efficiency Improvement in IEEE 802.11n MIMO-OFDM WLAN Communication Systems using Compact Space-Multimode Diversity Stacked Circular Microstrip Patch Antenna Arrays
The support of high spectral efficiency MIMO spatial-multiplexing communication in OFDM-WLAN systems conforming to IEEE 802.11n standard requires the design and use of compact antennas and arrays with low correlation ports. For this purpose, compact spacemultimode diversity provisioning stacked circular multimode microstrip patch antenna arrays (SCP-ULA) are proposed in this paper and their per...
متن کاملComparison of Adaptive Mutation Genetic Algorithm and Genetic Algorithm for Transmit Antenna Subset Selection in MIMO- OFDM
Multiple input multiple output techniques are considered attractive for future wireless communication systems, due to the continuing demand for high data rates, spectral efficiency, suppress interference ability and robustness of transmission. MIMO-OFDM is very helpful to transmit high data rate in wireless transmission and provides good maximum system capacity by getting the advantages of both...
متن کاملTransmit antenna subset selection in MIMO OFDM system using adaptive mutation Genetic algorithm
Multiple input multiple output techniques are considered attractive for future wireless communication systems, due to the continuing demand for high data rates, spectral efficiency, suppress interference ability and robustness of transmission. MIMO-OFDM is very helpful to transmit high data rate in wireless transmission and provides good maximum system capacity by getting the advantages of both...
متن کامل