Space–time block coding is a technique used in wireless communications to transmit multiple copies of a data stream across a number of antennas and to exploit the various received versions of the data to improve the reliability of data transfer. The fact that the transmitted signal must traverse a potentially … See more Most work on wireless communications until the early 1990s had focused on having an antenna array at only one end of the wireless link — usually at the receiver. Seminal papers by Gerard J. Foschini and Michael J. Gans, … See more The design of STBCs is based on the so-called diversity criterion derived by Tarokh et al. in their earlier paper on space–time trellis codes. Orthogonal STBCs can be shown to achieve … See more One particularly attractive feature of orthogonal STBCs is that maximum likelihood decoding can be achieved at the receiver with only linear processing. In order to consider a … See more • Multiple-input and multiple-output (MIMO) • Space–time block coding based transmit diversity (STTD) See more Alamouti's code Siavash Alamouti invented the simplest of all the STBCs in 1998, although he did not coin the term "space–time block code" himself. It was designed for a two-transmit antenna system and has the coding matrix: See more These codes exhibit partial orthogonality and provide only part of the diversity gain mentioned above. An example reported by Hamid Jafarkhani See more WebSTBC is designed to allow for increased performance of wireless transmissions knowing each signal may be delayed or experience different signal-to-noise ratios (SNR). STBC compensates for added noise and other additional losses through spatial channels and can help reduce bit-error rates.
Space-Time Block Coding for Wireless Communications
WebNov 21, 2024 · The modified STBC patterns. Full size table 3 Proposed Method In this method, it is assumed that the location of relays and wireless transmission environment are known by the added UAV. The Received-Signal-Strength Indicator (RSSI) between nodes can be determined by the beacon packets in network. http://pubs.sciepub.com/ajeee/5/1/4/index.html rods sheet
Performance Analysis of MIMO-OFDM and MISO-OFDM System based on STBC …
WebMar 8, 2024 · There are two main kinds of space-time codes: Space-Time Block Codes (STBC) and Space-Time Trellis Codes (STTC). In general, STTC offer a better performance … WebThe wireless networks lack a physical boundary due to the broadcasting nature of wireless transmissions. The security has become a critical concern in the physical layer of wireless networks. Physical-layer security techniques are effective in resolving ... WebJan 1, 2015 · Application of ANNs for STBC decoding is such an area which offers solutions to tackle the intricacies associated with the fluctuations observed in multipath propagation which is always the problem area in wireless communication. Keywords Multi-input-multi-output (MIMO) system Space–time block codes (STBC) Artificial neural network (ANN) rods short haul