Multi-Radio Multi-Channel Wireless mesh networks (MRMC WMNs) is the self-configuring backhaul providing internet access for last mile users through multi-hop forwarding. The increasing demand for low cost wireless networks coverage has motivated a high interest in multi-hop communications based recent and significant IEEE 802.11s WMN standard. One of the main challenges being faced by WMN is co...

The paper deals with the third (and last) part of results of the Czech Science Foundation research project that was aimed into the simulation and measurement of the transmission distortions of the digital terrestrial television according to DVB-T/H standards. In this part the transmission of the digital television according to DVB-T/H standard over the fading channels and their models and profi...

We obtain optimal resource allocation policies for a single user single-carrier system and a multiple-access multi-carrier-CDMA system when the transmitter adapts to the variations in the short-term mean (slow fade) in a combined slow and fast fading (composite fading) environment. For the single user system, we maximize the average throughput achieved by the user, while in the uplink MCCDMA sy...

Test-bed implementation of iterative transceiver design and power control algorithm for downlink transmission in a multiple-input multiple-output (MIMO) cellular network is presented1. The network consists of three cells where within each cell one base station (BS) communicates with one mobile station (MS) while interferes the other MSs outside the cell. Each terminal is equipped with two anten...

PEEK cages are an effective alternative when structural bone graft is needed for different fusions around the foot and ankle. Bone fusion rates are high when PEEK cages are filled with autologous bone. No difference in consolidation time in patients was noticed between the cages fixed with staples and those fixed with cannulated screws. Nerve damage, residual pain at the donor site, and cosmeti...

Wireless transmission of compressed visual information presents new challenges in image coding and reconstruction techniques. Unlike the traditional error-free media for which current coding standards have been designed, wireless channels do not offer guaranteed transmission, and data loss over such channels can result in catastrophic errors in the decoded visual information. Visual data, howev...

The long-term throughput of optical links between a circular-LEO satellite and a ground station is assessed for systems with fixed and variable data rates. For a fixed data rate, we evaluate the minimum elevation angle above which the link should be established in order to maximize the throughput. The ratio of this optimized constant-data-rate throughput to the throughput of an adaptive transmi...