Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems play a vital role in the channel estimation. The wireless channel suffers from impairments like fading and interference. Technologies that achieved above requirements are Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM). Channel impairments must be mitigated a...

The open problem of the existence of double coprime factorizations (DCFs) for multi-input/multi-output (MIMO) multidimensional (nD) linear systems is considered in this paper. It is shown that DCFs exist for a class of MIMO nD linear systems. A simple and efficient method is proposed for the construction of DCFs. The main result of the paper is to show how to construct a coprime (over the ring ...

Massive multiple-input multiple-output (MIMO) is a strong candidate for the fifth generation (5G) communications system for its high data rate and link reliability. Combining the massive MIMO with orthogonal frequency division multiplexing (OFDM) technique will increase the robustness of the system against the delay spread in the multipath channel. However, OFDM systems are sensitive to frequen...

Multiple-input-multiple-output (MIMO) technology has become an integral part of wireless systems nowadays. This technology depends on the use of multiple antenna elements at the mobile terminal as well as the base station. The design of compact printed MIMO antenna systems is a challenging task specially when it is made for small factor mobile terminals. The introduction of MIMO brought with it...

This paper describes low-power dynamic multiple-input and multiple-output (MIMO) detection for a 4×4 MIMO-orthogonal frequency-division multiplexing (MIMO-OFDM) receiver. MIMO-OFDM systems achieve high-speed and large capacity communications. However, they impose high computational cost in MIMO detection when separating spatially multiplexed signals and they consume vast amounts of power. We pr...

In this paper, the problem of target detection in phased-MIMO radars is considered and target detection performance of phased-MIMO radars is compared with MIMO and phased-array radars. Phased-MIMO radars combine advantages of the MIMO and phased-array radars. In these radars, the transmit array will be partitioned into a number of subarrays that are allowed to overlap and each subarray transmit...

In this paper, we propose a new iterative detection and decoding scheme based on parallel interference cancel (PIC) for coded MIMO-OFDM systems. The performance of proposed receiver is improved through the joint PIC MIMO detection and iterative detection and decoding. Its performance is evaluated based on computer simulation. The simulation results indicate that the performance of the proposed ...

In this contribution we present a new family of soft equalizers for multiple input multiple output (MIMO) systems with frequency selective fading. The proposed equalizers are based on soft successive interference cancellation (SIC) of both intersymbol interference (ISI) and multiple antenna interference (MAI), and are applicable to both single user MIMO systems with ISI and MIMO multipath chann...

This paper discusses the performance of antenna selection technique in space time turbo coded MIMO-OFDM systems. Multiple-input multiple-output (MIMO) technology can either increase the data rate through spatial multiplexing or improve the reliability through diversity. Space-time turbo codes (STTC) have been proposed to provide robust communications in MIMO wireless environment. STTC technique...

In this paper the performance of the Vertical Bell Laboratories Space-Time (V-BLAST) detection that is used in spatial multiplexed MIMO system is investigated when fading correlation effects is included. Simulations of MIMO systems are developed employing accurate stochastic spatial channel model for both the uniform linear array (ULA) and uniform circular array (UCA) geometries. Systems applyi...