Recently, there has been an explosion of growth in research on MIMO (Multiple Input Multiple Output) systems. Current WLAN systems such as IEEE 802.11a and 802.11g Wireless Local Area Networks (WLANs) employ Coded Orthogonal Frequency Division Multiplexing (COFDM) and provide data rates of up to 54 Mbps in a 20MHz bandwidth. In this paper, space-time block coding (STBC) and spatial multiplexing...

Visible light communication (VLC) is a promising technology for 6th-generation (6G) networks because of its attractive feature such as wide unlicensed spectrum. In this paper, novel adaptive coded spatial modulation scheme with probabilistic shaping (PS) proposed to approach the capacity (SM) in visible channels intensity and direct detection (IM/DD). scheme, constellation symbols are probabili...

Spatial multiplexing is required to configure MIMO antenna. Spatial multiplexing require a high data rate to split into multiple lower data rate stream is transmitted from different transmit antenna in the same frequency channel. If these signals arrive at the receiver antenna array with sufficiently different spatial signature, the receiver can separate these streams, creating parallel channel...

Sphingomyelin (SM) and cholesterol (chol)-rich domains in cell membranes, called lipid rafts, are thought to have important biological functions related to membrane signaling and protein trafficking. To visualize the distribution of SM in lipid rafts by means of Raman microscopy, we designed and synthesized an SM analog tagged with a Raman-active diyne moiety (diyne-SM). Diyne-SM showed a stron...

WiMax is a wireless technology promising to deliver high data rates over large areas to a great number of users. In this paper, the performances of several algebraic space-time codes are investigated in a WiMax environment for different multi-antennae configurations, and by applying various detection methods. These performances are then compared against those of other space-time codes supported...

Employing multiple antennas at the transmitter and receiver sides has been identified as the key enabler for high spectral efficiency in point-to-point communication, since it facilitates multiplexing of several data streams in space rather than in time/frequency. In this work, we are interested in achieving spatial multiplexing (SM) through efficient cooperative relaying schemes, even if both ...