Alomouti’s space-time coding scheme for Multi-Input Multi-Output (MIMO) system has drawn much attention in 4G wireless technologies. Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be combined with antenna arrays at the transmitter and receiver to increase the diversity gain and enhance the system capacity on time variant ...

MIMO systems have been developing in recent past as a solution to high speed and reliable data communication problems. Reducing the separation between antenna terminals while not compromising at the same time with the performance parameters of the system, is a key area of research in MIMO technology. In this paper, a compact dual-element PIFA array is presented for MIMO LTE applications. The MI...

In this paper, an advanced closed loop polarized Multiple-Input Multiple-Output antenna system employing Pre-RAKE and Combined Transmit Diversity techniques “Polarized MIMO Pre-RAKE CTD system” is proposed in Frequency Division Duplex (FDD) mode. The proposed system introduces a significant performance gain without increasing the complexity and the power consumption of the mobile terminal as we...

Multiple-Input Multiple-Output (MIMO) technology is widely applied in terrestrial wireless communication system, which greatly increases the system capacity. Satellite communication system has many advantages such as wide coverage and strong flexibility. Therefore, how to make a better use of MIMO technology in satellite communication system has become a research hotspot in recent years. The pu...

Orthogonal frequency division Multiplexing (OFDM) is one of the most popular multicarrier or multiplexing modulation techniques in high speed wireless communication. The main principle of OFDM system is to transmit multiple numbers of signals simultaneously over a single transmission path. OFDM convert high data rate stream in to smaller data rate stream. Due to this high data rate and ability ...

Bit-interleaved coded modulation (BICM) is a robust multiplexing technique for achieving multiplexing gain in multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems. However, in order to benefit maximally from the various advantages offered by BICM-based MIMO-OFDM systems, availability of accurate MIMO channel state information (CSI) at the receiver end ...

In this paper, we analyze the Bit Error Rate (BER) performance of Golden coded Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system over Rician multipath fading channel. We also compare the performance of the MIMO-OFDM system using Golden code in Rayleigh and Rician multipath fading channels. We discuss the effects of the presence of line-of-sight (LoS) c...

In this paper, an approach of time division multiplexing (TDM) for the MIMO-OFDM (orthogonal frequency division multiplexing) transmitter and receiver is studied and evaluated to reduce the power consumption and cost down of the multiple antenna RF chains. With this TDM technique, our proposed MIMO-OFDM communication system can reduce the number of RF chains from N to 1, which significantly red...

Carrier Interferometry Coded Orthogonal Frequency Division Multiplexing (CI-COFDM) system has been widely studied in multi-carrier communication system. The CI-COFDM system spreads each coded information symbol across all N sub-carriers using orthogonal CI spreading codes. The CI-COFDM system shows the advantages of Peak to Average Power Ratio (PAPR) reduction, frequency diversity and coding ga...