The dc-biased optical orthogonal frequency division multiplexing (DCO-OFDM) system is experimentally demonstrated as an appealing candidate in future visible light communication (VLC) system. However, the intrinsic high PAPR drawback that the DCO-OFDM system suffers from still needs to be addressed and few effective approach has been found so far. To deal with this problem, in this paper, the t...

This paper presents an optimum layout method of a low-power, digitally controlled oscillator (DCO) for Bluetooth low-energy (BLE) transceiver in 4G/5G LTE system. For the optimal LC-based DCO layout, three different layouts, including gm cell locations and Al metal layer, were implemented, performance was compared verified BLE application. The implemented neck (NDCO), where is located main indu...

In this paper, we study the ergodic capacity (EC) and average bit error rate (BER) of spatial diversity underwater wireless optical communications (UWOC) over generalized gamma (GG) fading channels using quadrature amplitude modulation (QAM) direct current-biased orthogonal frequency division multiplexing (DCO-OFDM). We derive closed-form expressions EC BER for UWOC with equal gain combining (E...

Distributed communicating object groups, relevant algorithms and object communication protocols are presented. The distributed communicating object group system (called DCO) is built on the basis of hierarchy group communication protocols for networks. The system can be used as a speci®cation and design environment for distributed fault-tolerant object-oriented (OO) applications. By combining d...

This paper introduces a robust and efficient vision based method for object detection and 3D pose estimation that exploits a novel edge-based registration algorithm we called Direct Directional Chamfer Optimization (DCO). Our approach is able to handle textureless and partially occluded objects and does not require any off-line object learning step. Depth edges and visible patterns extracted fr...

The maps presented in Paper I are here used to infer the variation of the column densities of HCO, DCO, N2H, and N2D as a function of distance from the dust peak. These results are interpreted with the aid of a crude chemical model which predicts the abundances of these species as a function of radius in a spherically symmetric model with radial density distribution inferred from the observatio...

Pulmonary membrane diffusing capacity (Dm) and pulmonary capillary blood volume (Vc) measurements were carried out in 21 patients with untreated tropical eosinophilia and 21 healthy controls matched for age, sex, height, and smoking habit. The mean single breath transfer factor (Dco) and the mean membrane diffusing capacity were significantly lower (p less than 0.001) in patients with tropical ...

Acute distal clavicular osteolysis was first described in 1936. Since then, distal clavicular osteolysis (DCO) has been separated into traumatic and atraumatic pathogeneses. In 1982 the first series of male weight trainers who developed ADCO was reported. The association of weightlifting and ADCO is especially important considering how routine a component weights are to the male athlete's train...

Drosophila melanogaster bearing mutations in the DCO gene, which encodes the major catalytic subunit of cAMP-dependent protein kinase (PKA), displays arrhythmic locomotor activity strongly suggesting a role for PKA in the circadian timing system. This arrhythmicity might result from a requirement for PKA activity in photic resetting pathways, the timekeeping mechanism itself, or downstream effe...