We address the capacity limits of sizeconstrained multi-input multi-output (MIMO) arrays. While most work on MIMO focuses on arrays with of a small number of sufficiently spaced, low correlated antenna elements, we look at the case where a fixed small space is being filled up with antenna elements. We obtain a dense MIMO system whose rate performance is analyzed. We establish capacity limits an...

This paper presents achievements of an on-going activity where the applicability of MIMO to satellite communications with Digital Video Broadcasting – Satellite services to Handhelds as the key application is studied. The potential satellite and hybrid satellite-terrestrial MIMO scenarios are described, and the applicable MIMO schemes for each scenario are selected. The performance of the MIMO ...

Multiple-input multiple-output (MIMO) techniques allow remarkable improvements in the reliability and/or transmission rate of wireless communication systems. However, there are several major challenges towards the implementation of conventional MIMO concept in terminals with size, cost, and power constraints. First of all, insufficient space impedes the design of efficient and decorrelated MIMO...

The increasing interest in MIMO (Multiple-Input Multiple-Output) systems has given rise to a proliflc research activity in recent years. Both theoretical and practical issues have been studied. However, so far few MIMO testbeds or prototypes have been built for DVB-T or future standards. In this paper, a novel 2 x 2 MIMO testbed speciflcally designed for evaluating the performances of a DVB-T2 ...

This paper shows how the application of MIMO (multiple-input multiple-output) communication methods can enhance telemetry systems. The main contribution of MIMO to the communication system is improving spectral efficiency by exploiting spatial diversity of multiple antennas. For communications using high order QAM modulated signals, a blind MIMO equalizer is proposed in earlier works. In this w...

We investigate point-to-point transmission over dispersive multiple-input/multiple-output channels (MIMO ISI channels). MIMO orthogonal frequency-division multiplexing decomposes the frequency-selective channel into a set of independent flat-fading MIMO channels. Remaining spatial interference has to be treated in each carrier individually by means of MIMO equalization/precoding. We combine sev...

In this paper, a cluster-based virtual multiple-input multiple-output (MIMO) communication scheme is proposed for energy-constrained wireless sensor networks. We investigate virtual MIMO for fixed and variable rates. We propose energy efficient routing space-time block coding (STBC) based virtual MIMO technique is incorporated into low-energy adaptive clustering hierarchy (LEACH). In addition, ...

Scientists have explored that WiMAX has the potential to enhance the performance of the radar networks. With the idea of implementing MIMO (multi-input multi-output) communication technology for overcoming the challenges offered by hostile channel and environmental effects.It leads the technocrats to utilize this technology in radar operations. WiMAX MIMO can exploit the range of WiMAX and the ...

Orthogonal Frequency Division Multiplexing (OFDM) technique has been proposed as a standard for the next generation wireless communication system. Next generation wireless communication technologies require multimedia service such as internet services, audio, video and mainly high data rate with high mobility. OFDM fulfills these requirements. It provides high data rates and high spectral effic...