Results 51 to 60 of about 67,420 (308)
Turbo trellis-coded hierarchical modulation assisted decode-and-forward cooperation [PDF]
Hierarchical modulation, which is also known as layered modulation, has been widely adopted across the telecommunication industry. Its strict backward compatibility with single-layer modems and its low complexity facilitate the seamless upgrading of ...
Ng, Soon Xin, Hanzo, Lajos, Sun, Hua
core +1 more source
Space-Time Block Coded and IQ-interleaved TCM, TTCM, BICM and BICM-ID Assisted OFDM [PDF]
, 2003 Space-Time Block Coded (STBC) In-phase Quadrature-phase (IQ)-interleaved Coded Modulation (CM) schemes are proposed for Orthogonal Frequency Division Multiplexing (OFDM).
Ng, S.X. +5 more
core +1 more source
IEEE Access, 2019 A probabilistic shaping method based on reduced-exponentiation subset indexing and honeycomb-structured constellation optimization is proposed to compress the number of signal points in the constellation, so that the total number doesn't fit the ...
Xiangyu Wu +8 more
doaj +1 more source
On the Design of Turbo Trellis Coded Modulation schemes using Symbol-based EXIT Charts [PDF]
, 2006 In this paper we design bandwidth efficient parallel-concatenated Turbo Trellis Coded Modulation (TTCM) schemes for communicating over AWGN and uncorrelated Rayleigh fading channels.
Kliewer, J. +7 more
core +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
IEEE Photonics Journal, 2012 We propose a scheme that can attain the same transmission bit rate as the corresponding conventional polarization-division-multiplexed (PDM) quadrature amplitude modulation (QAM) scheme while occupying lower bandwidth and, hence, achieving a higher ...
Murat Arabaci +3 more
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Near-Instantaneously Adaptive Decision Feedback Equalized Coded Modulation for Wireless Video Telephony [PDF]
, 2001 Decision Feedback Equaliation (DFE) aided wideband Burst-by-Burst (BbB) Adaptive Trellis Coded Modulation (TCM), Turbo Trellis Coded Modulation (TTCM) and Bit-Interleaved Coded Modulation (BICM) are proposed and characterised in performance terms over ...
Ng, S.X., Cherriman, P.J., Hanzo, L.
core
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Three-Dimensional EXIT Chart Analysis of Iterative Detection Aided Coded Modulation Schemes [PDF]
, 2006 The iterative convergence of iteratively detected coded modulation schemes having different block lengths, decoding complexity and an unequal error protection capability is studied, when communicating over AWGNchannels using 8PSK modulation.
Ng, S.X., Tee, R.Y.S., Hanzo, L.
core