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Space-time constellation design for partial CSI at the receiver

J. Giese, M. Skoglund
2005 Proceedings. International Symposium on Information Theory, 2005. ISIT 2005.  
Whereas the first approach is based on a generic gradient search method, the second approach uses an appropriate combination of constellations designed for perfect and no CSI at the receiver.  ...  Moreover, two approaches to design constellations adapted to the error covariance of the receiver CSI are presented.  ...  If no CSI is available at the transmitter, traditional space-time code design methods [8] - [10] can be used.  ... 
doi:10.1109/isit.2005.1523740 dblp:conf/isit/GieseS05 fatcat:kyigasmvsbdfdopehiu6oskkeu

Space–Time Constellation Design for Partial CSI at the Receiver

J. Giese, M. Skoglund
2007 IEEE Transactions on Information Theory  
Whereas the first approach is based on a generic gradient search method, the second approach uses an appropriate combination of constellations designed for perfect and no CSI at the receiver.  ...  Moreover, two approaches to design constellations adapted to the error covariance of the receiver CSI are presented.  ...  If no CSI is available at the transmitter, traditional space-time code design methods [8] - [10] can be used.  ... 
doi:10.1109/tit.2007.901249 fatcat:bdods3hnxjhhlato5zdnsrpcaa

Adaptive Modulation for Multiantenna Transmissions With Channel Mean Feedback

S. Zhou, G.B. Giannakis
2004 IEEE Transactions on Wireless Communications  
In this paper, we design adaptive modulation schemes for multiantenna transmissions based on partial CSI, that models the spatial fading channels as Gaussian random variables with nonzero mean and white  ...  Adaptive modulation has the potential to increase the system throughput significantly by matching transmitter parameters to time-varying channel conditions.  ...  For brevity, we assume that the error path spans two feedback intervals (or updates), at time and . Different constellations are chosen at time and , resulting in different and .  ... 
doi:10.1109/twc.2004.833411 fatcat:sd7qei7fyjhlpg7zqpfot24ufu

Adaptive MIMO-OFDM Based on Partial Channel State Information

P. Xia, S. Zhou, G.B. Giannakis
2004 IEEE Transactions on Signal Processing  
Numerical results confirm that the adaptive two-dimensional space-time coder-beamformer (with two basis beams as the two "strongest" eigenvectors of the channel's correlation matrix perceived at the transmitter  ...  Relying on the available partial CSI at the transmitter, our objective is to maximize the transmission rate, while guaranteeing a prescribed error performance, under the constraint of fixed transmit-power  ...  As with perfect CSI, partial CSI is made available either through a feedback channel from the receiver to the transmitter, or, when the transmitter acts also as receiver in a time-or frequency-division  ... 
doi:10.1109/tsp.2003.819986 fatcat:ki6em6j2h5hpheq3h3zjsvwhwe

Multiple-Symbol Differential Sphere Detection Aided Differential Space-Time Block Codes Using QAM Constellations

Chao Xu, Li Wang, Soon Xin Ng, Lajos Hanzo
2011 IEEE Signal Processing Letters  
ACKNOWLEDGMENT The support of the RC-UK under the auspices of the India-UK Advanced Technology Centre (IU-ATC) and the EPSRC under the China-UK science bridge, as well as that of the EU's Concerto project  ...  The signal arriving at the receiver is modeled as (2) 1 We note that for constant-modulus constellations the factor remains a constant of 1.0 all the time. 1070-9908/$26.00 © 2011 IEEE where the received  ...  Given this background, the design of MSDD/MSDSD for QAM-aided DSTBCs is an open problem at the time of writing.  ... 
doi:10.1109/lsp.2011.2160851 fatcat:t7jjdkqkjndj7h3chevdn6raje

Performance Evaluation of Full Diversity QOSTBC MIMO Systems with Multiple Receive Antenna

Hardip K. Shah, Tejal N. Parmar, Nikhil Kothari, K. S. Dasgupt
2011 International Journal of Grid and High Performance Computing  
Space Time Block codes (STBC) are used in MIMO systems to improve the performance by maximizing transmit and/or receive diversity.  ...  Among different schemes based on STBC, Quasi Orthogonal Space Time Block Code (QOSTBC) is able to achieve full rate transmission for more than two transmit antennas.  ...  Apart from the diversity at the receiver the transmit diversity can be used by using different space time codes (Guey, Fitz, Bell, & Kuo, 1996; Alamouti, 1998; Tarokh, Seshadri, & Calderbank, 1998 , 1999  ... 
doi:10.4018/ijghpc.2011100103 fatcat:mwtoa7czmvffph3pljoxh3qmyu

Low Complexity Adaptive Design for Full-Diversity Full-Rate Space-Time Codes

P. Ding, D.J. Love, J. Wang, M.D. Zoltowski
2006 IEEE Transactions on Signal Processing  
With only partial channel subspace knowledge at the transmitter, we adapt the open-loop FDFR code to the channel to maintain the special layer structure of the code at the receiver.  ...  The optimal loading schemes are derived for systems with linear receivers.  ...  ACKNOWLEDGMENT The authors are grateful to the anonymous reviewers for many helpful comments. P. Ding would like to thank Y.  ... 
doi:10.1109/tsp.2006.877674 fatcat:enzmiaufofce7dsvtwm7omcb4m

MIMO Capacity Analysis Using Adaptive Semi Blind Channel Estimation with Modified Precoder and Decoder for Time Varying Spatial Channel

Ravi kumar, Rajiv Saxena
2012 International Journal of Information Technology and Computer Science  
Due to delay in acquiring transmitted info rmation at the receiver end, the time selective fading wireless channel often induces incomp lete or partial CSI.  ...  Modified Precoder and Decoder for Time Varying Spatial Channel  ...  Acknowledgement The authors thankfully acknowledge the support provided by the authorities of Jaypee University of Engineering and Technology, Guna, India.  ... 
doi:10.5815/ijitcs.2012.10.01 fatcat:4szcg6cltjc5pe3hauw52dv4w4

Capacity Analysis of MIMO Spatial Channel Model using Novel Adaptive Semi Blind Estimation Scheme

Ravi kumar, Rajiv Saxena
2012 Journal of Wireless Networking and Communications  
It is found that in case of partial and imperfect CSI, the capacity depends on the statistical properties of the error in the CSI.  ...  Both parameters indicated the CSI quality since these are the functions of temporal correlation factor, and based on this, the model covers data from perfect to statistical CSI, either partial or full  ...  ACKNOWLEDGEMENTS The author thankfully acknowledges the support provided by the authorities of Jaypee University of Engineering and Technology, Guna, India.  ... 
doi:10.5923/j.jwnc.20120204.06 fatcat:7b7rjvn72nahxlc54rq5vcbfle

A novel weighted multilevel space–time trellis coding scheme

Sanjay Sharma
2012 Computers and Mathematics with Applications  
It has been shown that when perfect or partial channel state information (CSI) is available at the transmitter, the performance and capacity of a space-time coded system can be further improved.  ...  for larger constellations and higher throughputs.  ...  The information bits at each time t are encoded first by the space-time trellis encoder designed for the QAM constellation. , where we have 3 clusters, each having 4 sub-clusters.  ... 
doi:10.1016/j.camwa.2011.11.020 fatcat:jnmyz5vyufegxamc4dcpcmx4se

A Survey on MIMO Transmission with Discrete Input Signals: Technical Challenges, Advances, and Future Trends [article]

Yongpeng Wu, Chengshan Xiao, Zhi Ding, Xiqi Gao, Shi Jin
2017 arXiv   pre-print
Finally, technical challenges which remain unresolved at the time of writing are summarized and the future trends of transmission designs with discrete input signals are addressed.  ...  Additionally, we discuss the transmission designs with discrete input signals for other systems using MIMO technology.  ...  For the partially coherent scenario where the CSI is not available at the transmitter and only imperfect CSI is available at the receiver, robust STBCs are designed in [202] - [204] .  ... 
arXiv:1704.07611v1 fatcat:4gep4gnbefdytjdggniocdora4

Adaptive Signaling Based on Statistical Characterizations of Outdated Feedback in Wireless Communications

Honglei Zhang, Shuangqing Wei, Ganesh Ananthaswamy, Dennis L. Goeckel
2007 Proceedings of the IEEE  
However, the time-varying characteristics (or "state") of the wireless channel caused by the mobility of transmitters, receivers, and objects in the environment make it difficult to achieve reliable communication  ...  In this semi-tutorial paper, we overview how this class of methods has been developed over the last decade in design for single-antenna systems, and then present novel recent designs for multiple-antenna  ...  The channel capacity with partial CSI at the transmitter and perfect CSI at the receiver is well documented.  ... 
doi:10.1109/jproc.2007.907127 fatcat:baevgxynhnb63b3wikz6wm7o4e

A Limited Feedback Scheme for Linear Dispersion Codes Over Correlated MIMO Channels

Che Lin, Venugopal V. Veeravalli
2007 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07  
With partial Channel State Information (CSI) at the transmitter, the design of space-time codes for frequency flat, spatially correlated MIMO fading channels is considered.  ...  For perfect CSI at the transmitter, the LD codes are optimized with respect to the instantaneous mutual information between the inputs to the space-time encoder and the output of the channel.  ...  This justifies the use of mutual information as a design criterion for space-time block codes if soft decisions are allowed at the space-time decoder.  ... 
doi:10.1109/icassp.2007.366467 dblp:conf/icassp/LinV07 fatcat:oslmbwenfjhala73vf32o2r7ki

Four-dimensional constellations for dual-polarized satellite communications

Nicolo Mazzali, Farbod Kayhan, R Bhavani Shankar Mysore
2016 2016 IEEE International Conference on Communications (ICC)  
These four-dimensional constellations (inphase and quadrature per polarization) are designed for joint transmission over the two polarizations.  ...  Such constellations enhance the reliability of the system by providing certain redundancy into their design.  ...  Contrary to the aforementioned approach, we assume no CSI at the transmitter and perfect CSI at the receiver.  ... 
doi:10.1109/icc.2016.7511493 dblp:conf/icc/MazzaliKR16 fatcat:ji4wtkzeyrd67c5eow7zrufhpa

On Precoding for High Spatial Rate Space-Time Codes

Erik Stauffer, Mohamad Charafeddine, Arogyaswami Paulraj
2006 2006 Fortieth Asilomar Conference on Signals, Systems and Computers  
In this work, we consider the case of partial CSI-T (channel transmit covariance) and revisit precoder design for high rate space time codes which do not have a unique minimum error matrix.  ...  Additional performance gains are possible when channel state information is available at the transmitter (CSI-T).  ...  CSI is assumed to be known perfectly at the receiver, but the transmitter is informed of only R t .  ... 
doi:10.1109/acssc.2006.354963 fatcat:dnd7e7fvxbf75bbo3hqnjnxscq
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