Results 71 to 80 of about 2,916 (209)

Performance of a non-orthogonal STBC over correlative fading channels [PDF]

open access: yes, 2010
It has been recently shown that, for non-orthogonal space-time block code (STBC), the multiple-input multiple-output (MIMO) maximum-likelihood (ML) metric can also be decoupled into single-input single-output (SISO) ML metrics for decoding simplification
Yen, Rainfield Y.; Liu, Hong-yu; Lee, Chun-chi; Nan, Shang-chieh; Hong, Ming-chih
core   +1 more source

Blind recognition of STBC-OFDM signals based on modified K-S test

open access: yesTongxin xuebao, 2017
Aiming at the problem that existed blind classification of STBC-OFDM in multiple input single output (MISO) communication system,an efficient method for blind classification of space-time block coded orthogonal frequency-division multiplexing (STBC-OFDM)
Qing LING, Li-min ZHANG, Wen-jun YAN
doaj   +2 more sources

Stream groundwater inputs generate fine‐scale variation in brook trout phenology and growth across a warming landscape

open access: yesFreshwater Biology, Volume 69, Issue 1, Page 127-142, January 2024.
Abstract Climate change is increasing global atmospheric temperatures, which can reduce abundance and cause range shifts in species that are sensitive to warming. However, fine‐scale thermal heterogeneity can drive highly variable local responses to climate change, especially in freshwater environments that differ in groundwater inputs and ...
Brian K. Gallagher, Dylan J. Fraser
wiley   +1 more source

Kalman Filter Channel Estimation in 2 × 2 and 4 × 4 STBC MIMO-OFDM Systems

open access: yesIEEE Access, 2020
Channel estimation is a challenging problem for space time block coding (STBC) multipleinput and multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems in dynamic environments.
Ruiguang Tang, Xiao Zhou, Chengyou Wang
doaj   +1 more source

Multigroup-Decodable STBCs from Clifford Algebras

open access: yes2006 IEEE Information Theory Workshop, 2006
5 pages, 1 figure, Proceedings of 2006 IEEE Information Theory Workshop (ITW 2006)
Karmakar, Sanjay, Rajan, B Sundar
openaire   +2 more sources

STBCs from Representation of Extended Clifford Algebras [PDF]

open access: yes2007 IEEE International Symposium on Information Theory, 2007
A set of sufficient conditions to construct $λ$-real symbol Maximum Likelihood (ML) decodable STBCs have recently been provided by Karmakar et al. STBCs satisfying these sufficient conditions were named as Clifford Unitary Weight (CUW) codes. In this paper, the maximal rate (as measured in complex symbols per channel use) of CUW codes for $λ=2^a,a\in ...
G. Susinder Rajan, B. Sundar Rajan
openaire   +2 more sources

Pseudomonas syringae coffee blight is associated with the horizontal transfer of plasmid‐encoded type III effectors

open access: yesNew Phytologist, Volume 241, Issue 1, Page 409-429, January 2024.
Summary The emergence of new pathogens is an ongoing threat to human health and agriculture. While zoonotic spillovers received considerable attention, the emergence of crop diseases is less well studied. Here, we identify genomic factors associated with the emergence of Pseudomonas syringae bacterial blight of coffee. Fifty‐three P.
Kathryn J. McTavish   +10 more
wiley   +1 more source

Upper Bounds on the BER Performance of MTCM-STBC Schemes over Shadowed Rician Fading Channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
Space-time block coding (STBC) provides substantial diversity advantages with a low decoding complexity. However, these codes are not designed to achieve coding gains. Outer codes should be concatenated with STBC to provide additional coding gain.
M. Uysal, C. N. Georghiades
doaj   +1 more source

Unitary Nongroup STBC From Cyclic Algebras [PDF]

open access: yesIEEE Transactions on Information Theory, 2006
Space-time block codes (STBCs) are designed for multiple-input-multiple-output (MIMO) channels. In order to avoid errors, single-input-single-output (SISO) fading channels require long coding blocks and interleavers that result in high delays. If one wishes to increase the data rate it is necessary to take advantage of space diversity. Early STBC, that
Joseph Abarbanel   +3 more
openaire   +1 more source

Combined spatial multiplexing and STBC to provide throughput enhancements to next generation WLANs

open access: yes, 2005
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 ...
Nix, AR, Doufexi, A, Beach, MA
core  

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