| The use of multiple transmitter and receiver antennas allows to transmit multiple signal substreams in parallel and hence to increase communication capacity. In order to distribute the multiple signal substreams over the MIMO channel, linear spacetime codes have been shown to be a convenient way to reach high capacity gains with a reasonable complexity. The space-time codes that have been int...

introduction active mending rivers are the most dynamic and sensitive parts of the fluvial landscapes. meandering rivers suffer a large geomorphic changes during the annual flood events. based on large flood evidences, reconstruction of the channel bed migration will be possible, which is use for evaluation of future evaluation and flood risk assessment in the flood plain areas. the morphologic...

This paper focuses on issues in multimedia networking over FDDI and simulation results demonstrating the feasibility of multimedia over FDDI. Previous work in this field has concentrated on the asynchronous channel in FDDI. Other examinations of the FDDI synchronous channel have applied bursty traffic to the synchronous channel. Multimedia traffic is typically stream oriented. Our simulations w...

We propose a scheme for Systematic Lossy Error Protection (SLEP) of an H.264/AVC compressed video bit-stream, using standard compatible features such as redundant slices, and flexible macroblock ordering. The systematic portion consists of a conventional H.264/AVC bit-stream. For error resilience, an additional Wyner-Ziv bit-stream is also transmitted. The Wyner-Ziv bit-stream allows the decodi...

8th Central European Conference on Cryptography 2008 1 Let’s call ECC-box a coponent which encodes the plaintext in order to provide correction of the random errors. Note that in the proposing stream cipher ECC-box encodes the plaintext so that it can be recovered correctly after corruption by the errors introduced in the ciphertext deliberately. Block scheme of the novel stream cipher family i...

1 Format From other sources To other destinations Channel symbols Message symbols Message symbols Information sink Optional Essential Channel symbols Digital input m i Information source Pulse modulate Bandpass modulate Synchronization Bit stream Digital baseband waveform Digital bandpass waveform u i g i (t) s i (t) z(T) r(t) X M T C h a n n e l Format Detect Demod-ulate & Sample Source encode...

Kabani river is a 7 order stream with a basin area of 1647 km. There are 4 sixth order and11 fifth order sub-basins. This analysis is mainly confined to 11 fifth order sub basins. Morphometric indices like stream ordering, bifurcation ratio, stream length, drainage density, stream frequency, form factor, elongation ratio, circularity ratio, constant of channel maintenance, asymmetry factor, sin...