Results 81 to 90 of about 2,916 (209)
IEEE Access, 2020 In the VLC context, pulse position modulation (PPM) and similar modulations are typically used when the overall complexity of the transmitter is required to be low or the system needs to support dimming, i.e., dynamically control the illumination level ...
Mauro Biagi +4 more
doaj +1 more source
Distributed closed-loop EO-STBC for a time-varying relay channel based on kalman tracking
, 2012 This paper considers distributed closed-loop extended orthogonal space-time block coding (EO-STBC) for amplify-forward relaying over time-varying channels.
Weiss, Stephan +2 more
core
Effects of Erroneous CSI on the Performance of Multiple-Transmit Antenna Selection
International Journal of Antennas and Propagation, 2015 The paper assumes that the channel state information (CSI) is available at the receiver and is known partially at the transmitter through a feedback channel.
Mingjie Zhuang
doaj +1 more source
Detection of multicode STBC signals in frequency selective fading
, 2007 Multicode operation in space-time block coded (STBC) multiple input multiple output (MIMO) systems can provide additional degrees of freedom in code domain to achieve high data rates.
Mohammed, Saif K, Chockalingam, A
core
Efficient maximum-likelihood noncoherent orthogonal STBC detection
, 2008 Summarization: Orthogonal space-time block coding (STBC) offers linear-complexity one-shot maximum-likelihood (ML) reception when the channel coefficients are known to the receiver. However, when the channel coefficients are unknown, the optimal receiver
Papailiopoulos Dimitrios S. +2 more
core +1 more source
Blind CM equalisation for STBC over multipath fading
, 2008 This Letter focuses on the development of a blind adaptive receiver for space-time block coding (STBC) over multipath fading. The constant modulus (CM) criterion is utilised on the received signals, whereby an orthogonality constraint of the transmitted ...
Bendoukha, S., Weiss, S.
core +1 more source
Throughput and coverage of WLANs employing STBC under different channel conditions [PDF]
, 2004 HIPERLAN/2 and 802.11a/g WLANs employ coded orthogonal frequency division multiplexing (COFDM) to provide data rates of up to 54 Mbps in a 20 MHz bandwidth.
Nix, AR +5 more
core +1 more source
On single-symbol and double-symbol decodable STBCs
IEEE International Symposium on Information Theory, 2003. Proceedings., 2003 A characterization of all single-symbol decodable designs (SSDD) (with or without full-diversity) is presented and a rate-one, double-symbol decodable, full-diversity coordinate-interleaved orthogonal design based on CIOD is given for eight transmit antennas.
Khan, Md. Zafar Ali +2 more
openaire +2 more sources
A Low-Complexity, Full-Rate, Full-Diversity 2 x 2 STBC with Golden Code's Coding Gain
, 2008 This paper presents a low-ML-decoding-complexity, full-rate, full-diversity space-time block code (STBC) for a 2 transmit antenna, 2 receive antenna multiple-input multiple-output (MIMO) system, with coding gain equal to that of the best and well known ...
Srinath, Pavan K, Rajan, Sundar B
core
The Journal of Engineering, 2014 In this study, the authors propose a full-rate distributed space–time block code (D-STBC) that can operate on an arbitrary number of available relaying nodes which generates minimal network overhead when incorporating additional relaying nodes into ...
Mohammed-Taha O. El Astal +2 more
doaj +1 more source