Results 41 to 50 of about 191,998 (317)
UEP Concepts in Modulation and Coding
Advances in Multimedia, 2010 First unequal error protection (UEP) proposals date back to the 1960's (Masnick and Wolf; 1967), but now with the introduction of scalable video, UEP develops to a key concept for the transport of multimedia data.
Werner Henkel +5 more
doaj +1 more source
IEEE Transactions on Communications, 2013 A framework is proposed that allows for a joint description and optimization of both binary polar coding and $2^m$-ary digital pulse-amplitude modulation (PAM) schemes such as multilevel coding (MLC) and bit-interleaved coded modulation (BICM). The conceptual equivalence of polar coding and multilevel coding is pointed out in detail.
Mathis Seidl +3 more
openaire +2 more sources
Iteratively Decoded Variable Length Space-Time Coded Modulation: Code Construction and Convergence Analysis [PDF]
, 2007 An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is proposed. Non-binary unity-rate precoders are employed
Yang, L.-L. +5 more
core +1 more source
Coded modulation scheme employing turbo codes
Electronics Letters, 1995 The authors present a turbo coding scheme for bandwidth-efficient modulation that outperforms turbo coding with Gray mapping by employing Ungerboeck codes as component codes. The scheme can be decoded iteratively and achieves very good bit error rates at low signal to noise ratios after a small number of iterations. 8PSK is used as an example, although
Robertson, P., Wörz, T.
openaire +3 more sources
Performance Analysis of Iteratively Decoded Variable-Length Space-Time Coded Modulation [PDF]
, 2007 It is demonstrated that iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) schemes are capable of simultaneously providing both coding gain as well as multiplexing and diversity gain.
Ng, S.X. +12 more
core +1 more source
IEEE AccessReducing the distance between magnetic islands is essential for increasing the areal density in bit-patterned media recording (BPMR). Consequently, significant two-dimensional (2D) interference emerges, encompassing inter-symbol interference (ISI) and ...
Thien An Nguyen, Jaejin Lee
doaj +1 more source
Equivalent-Capacity-Based Design of Space-Time Block-Coded Sphere-Packing-Aided Multilevel Coding [PDF]
, 2007 A multilevel coding (MLC) scheme invoking sphere packing (SP) modulation combined with space time block coding (STBC) is designed. The coding rates of each of the MLC component codes are determined using the so-called equivalent capacity based ...
Ng, S.X. +7 more
core +1 more source
IEEE AccessA novel multidimensional index modulation-based differential chaos shift keying (DCSK) technique, designated as Joint Subcarrier Time Reference Index Modulation-aided Differential Chaos Shift Keying (JSTRIM-DCSK), is proposed for efficient data ...
Fadhil S. Hasan, Alejandro A. Valenzuela
doaj +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Basal forebrain modulation of olfactory coding in vivo
International Journal of Psychological Research, 2023 Sensory perception is one of the most fundamental brain functions allowing individuals to properly interact and adapt to a constantly changing environment.
Juan Pablo Venegas +5 more
doaj +1 more source