Mobile computers a n d wireless networks are emerging technologies which will soon make ubiquitous computing a reality. I n the wireless environment, mobile clients may often be disconnected f rom stationary server machines or inay have only a low-bandwidth channel f o r sending messages to servers. This environment raises new challenges for the support of daiabase applications f o r three reas...

In this paper, multilevel coded asymmetric modulation with multistage decoding and unequal error protection (UEP) is discussed. These results further emphasize the fact that unconventional signal set partitionings are more promising than traditional (Ungerboeck-type) partitionings, to achieve UEP capabilities with multilevel coding and multistage decoding. Three types of unconventional partitio...

Data privacy and integrity will be the crucial and significant factors in recent times for trade which will be transacted over the Internet through e-commerce and mcommerce channels. To deal with these anxieties, various security etiquette related to symmetric and asymmetric key types have been framed. Digital Envelope is one of the practices to attain Privacy, Authentication, Integrity mainten...

We propose to study hadron-hadron scattering using lattice QCD in an asymmetric box which allows one to access more non-degenerate low-momentum modes for a given volume. The conventional Lüscher’s formula applicable in a symmetric box is modified accordingly. To illustrate the feasibility of this approach, pion-pion elastic scattering phase shifts in the I = 2, J = 0 channel are calculated with...

A patterning method for the generation of epitaxial CoSi2 nanostructures was developed based on anisotropic diffusion of Co/Si atoms in a stress field during rapid thermal oxidation (RTO). The stress field is generated along the edge of a mask consisting of a thin SiO2 layer and a Si3N4 layer. During RTO of the masked silicide structure, a well-defined separation of the silicide layer forms alo...

The IP Multicast architecture was not widely deployed because multicast address allocation is difficult and there is no scalable solution to inter-domain multicast routing. Hence, there is an interest in developing protocols that allow the progressive deployment of the multicast service by supporting unicast clouds. This paper proposes HBH (Hop-By-Hop multicast routing protocol). HBH adopts the...

Abstract In this article, we have investigated the peristaltic transport of electro-osmotic flow Jeffrey fluid in an asymmetric channel, which walls are modulated by array patches. presence Electrical Debye Layer (EDL), Poisson Boltzmann equation for electrical potential within micro channel is considered. To evaluate potential, Debye-Huckel linearization employed governing equations modeled an...

Residual self-interference (SI) cancellation in the digital baseband is an important problem in full-duplex (FD) communication systems. In this paper, we propose a new technique for estimating the SI and communication channels in a FD communication system, which is inspired from superimposed signalling. In our proposed technique, we add a constant real number to each constellation point of a co...

In the Internet and Communication Technology (ICT) field, sharing and distribution of information is very important. Various mechanisms and techniques are used to manage information; one of these is based on peer-to-peer networks. In today’s world and in the near future, the exchange and distribution of information will be a very important aspect in the workplace and in daily life. Consequently...

We consider the wireless communication of common information between several terminals with the help of a relay as it is for example required for a video conference. The transmissions of the nodes are divided in time and there is no direct link between the terminals. The allocation of the transmission time and of the rates in all directions can be asymmetric. We derive a closed form expression ...