This paper presents the MIMO MIddleware MOnitoring system, an infrastructure for monitoring and managing distributed, heterogeneous middleware environments. MIMO is based on a new multi-layermonitoring approach for middleware systems, which classifies collected information using several abstraction levels. The key features of MIMO are its openness, flexibility, and extensibility. MIMO’s researc...

In this contribution, the On-body propagation measurements at 40m underground mine gallery and their statistical analysis are presented. Monopole antennas were installed on the body in order to form three on-body channels, namely belt-chest, belt-wrist and belt-head. The channel parameters of a 2 × 2 Multiple-Input Multiple-Output (MIMO) On-body system are evaluated and compared to the single-i...

Now a day’s MIMO-OFDM system in Rayleigh Fading Channel is very popular technique for mobile communication for research. Here our main motive is to analyses the performance of MIMO-OFDM system by using ASTC encoder. In this paper, we evaluated the performance of MIMO OFDM system under different modulation techniques. The performance of system is evaluated by calculating the probability of Bit E...

A novel compressive-sensing based signal multiplexing scheme is proposed in this paper to further improve the multiplexing gain for multiple input multiple output (MIMO) system. At the transmitter side, a Gaussian random measurement matrix in compressive sensing is employed before the traditional spatial multiplexing in order to carry more data streams on the available spatial multiplexing stre...

F.O. Tade and Y. Sun University of Hertfordshire Abstract: This paper evaluates a 4x4 MIMO-OFDM system using transmit diversity with MRC at the receive end for WLAN applications. We compare different MIMO detection algorithms with different modulation schemes. The combined MIMO-OFDM using the combined MMSE-SIC method for the IEEE 802.11a/n standards is then implemented and the performances are ...

Multiple Input Multiple Output (MIMO) technique is considered as a cost-effective and promising technique for the next generation wireless system. Orthogonal Space-Time Block Codes (OSTBC) scheme is one of the most important coding schemes for MIMO system. The performance of an MIMO system using OSTBC (MIMO-OSTBC), however, degrades significantly in presence of strong interferences. In this pap...

Recently, many works have considered a physical properly of antenna in MIMO channel models, such as radiation pattern effective for MIMO system. However, effect of antenna for MIMO with different algorithms is required and also with different environments of signal behavior at each end of the link. Thus, a traditional antenna such as Omni-directional antenna generally is used to design MIMO sys...

In this paper it evaluates the BER (bit error rate) performance of MIMO system. MIMO uses multiple transmitting antennas, multiple receiving antennas and the space time block codes to provide diversity. MIMO transmits signal encoded by space time block encoder through different transmitting antennas. These signals arrive at the receiver at slightly different times. Spatially separated multiple ...

Several MIMO technology are introduced to improve the performance factor for next generation systems, closedloop MIMO schemes increase the system capacity as well as cell cover-age in single cell system, Interference occurring in cell network is the dominant issue, unless several multiple-base-station co-operation schemes have been introduced to mitigate or reduce the intercell interference. In...

It is well known that the employment of multiple antennas at both the transmitter and receiver increases the overall system capacity. This paper presents an overview of capacity variation in single-user and multiuser multiple-inputmultiple-output (MIMO) systems in Additive White Gaussian Noise (AWGN) and Rayleigh fading channels under the assumption that channel state information (CSI) is known...