Results 71 to 80 of about 847,537 (286)
Bit error rate is convex at high SNR
, 2009 to be presented at IZS-10, March ...
Loyka, Sergey +2 more
openaire +4 more sources
Bit error rate estimation for turbo decoding
IEEE Transactions on Communications, 2003 In this paper we propose a method for on-line estimation of bit error rate during turbo decoding. We model the log-likelihood ratios as a mixture of two Gaussian random variables and derive estimators for the mean and variance of these distributions based on a maximum-likelihood approach. The parameter estimates are then employed to calculate the cross-
N. Letzepis, A. Grant
openaire +4 more sources
Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing
Advanced Engineering Materials, EarlyView.This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu +10 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
Bit error rate analysis model of M-APSK based on total probability formula
Tongxin xuebaoTo efficiently evaluate the performance of M-APSK modulation scheme over an additive white Gaussian noise channel, a theoretical bit error rate analysis model was proposed based on total probability formula.
HUAN Hao, REN Kexue
doaj +2 more sources
IMPLEMENTATION OF BIT ERROR RATE (BER) BASED ON SOFTWARE DEFINED RADIO
Journal of Engineering and Sustainable Development, 2015 Software-defined radio (SDR) technology offers resilience, efficient market hypothesis cost, and less power consumption leading communications ahead, with widely reaching advantageousness accomplished by service providers and product advancers through
Hassan Hayder Dawood
doaj
Applied Sciences, 2018 The satellite-to-ground optical communication system suffers from atmosphere turbulence severely. It is well-known that the coherent detection can increase the receiver sensitivity and performing aperture averaging can reduce the scintillation caused by ...
Hongwei Li +5 more
doaj +1 more source
Adaptive MBER space-time DFE assisted multiuser detection for SDMA systems
, 2006 In this contribution we propose a space-time decision feedback equalization (ST-DFE) assisted multiuser detection (MUD) scheme for multiple antenna aided space division multiple access systems.
Chen, S., Hanzo, L., Livingstone, A.
core
On the performance of two protocols: SARG04 and BB84
, 2005 We compare the performance of BB84 and SARG04, the later of which was proposed by V. Scarani et al., in Phys. Rev. Lett. 92, 057901 (2004). Specifically, in this paper, we investigate SARG04 with two-way classical communications and SARG04 with decoy ...
Chi-Hang Fred Fung +5 more
core +1 more source
Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators
Advanced Engineering Materials, EarlyView.A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad +6 more
wiley +1 more source