INTRODUCTION In the information age where teleconferences replace in-person meetings, where telecommuting replaces going to the office, and where international networks facilitate global transmissions with the apparent ease of calling one’s next-door neighbor, valuable assets change ownership at the speed of light. Louis Jionet, Secretary-General of the French Commission on Data Processing and ...

Bit-interleaved coded modulation (BICM) was introduced in 1992 as a new coded modulation (CM) scheme particularly well suited for fading channels and is nowadays considered the de facto CM scheme in wireless standards (HSPA, IEEE 802.11a/g/n, DVB-T2/S2/C2, etc.). A typical BICM configuration is based on a convolutional code, a single bit-level interleaver (S-interleavers), and an equally spaced...

In this work the theoretical bases of the force adaptation in robot transmissions are stated. The force adaptation in robot transmissions considers creation, research and designing of robots with adaptive electric drives of modules. The adaptive drive contains the electric motor and the adaptive gear mechanism possessing property independently to change output speed of movement depending on loa...

This paper aims to give a description of active filters, with a brief discussion on topologies, main components and control principles followed by a review on achieved performance and operational experience in the above projects. Finally, the paper concludes with future expectations for active dc filters. In addition the paper gives a brief discussion on active ac filters and continuously tuned...

The retransmission cut-off is not needed for a stable operation of slotted ALOHA if the new packet generation rate is below a critical limit. The throughput never reaches its maximum value if the new packet generation rate is less than this critical limit irrespective of the number of transmissions. The maximum throughput is attained by adjusting the number of transmissions, pertaining to the n...

Cyclic Prefixed Orthogonal Frequency Division Multiplexing (CP-OFDM) is viewed as an attractive transmissions system for wired and wireless high speed communications. Its bit error rate performance, however, can be very sensitive to impairments like frequency offset and timing mismatch as well as ingress and impulse noise. In this paper it is shown that using long modulating windows with overla...

This article proposes an acquisition framework that involves horizontal, vertical, and oblique transmissions. Based on a lexicon–syntax coevolution model, it discusses the relative roles of these forms of cultural transmission on language origin and change. The simulation results not only reveal an integrated role of oblique transmission that combines the roles of horizontal and vertical transm...