Error correction is an integral part of any communication system and for this purpose, the convolution codes are widely used as forward error correction codes. For decoding of convolution codes, at the receiver end Viterbi Decoder is being employed. The parameters of Viterbi algorithm can be changed to suit a specific application. The high speed and small area are two important design parameter...

High-speed cinematography of feeding Pleurobrachia revealed a stereo-typed sequence of ciliary motor responses underlying the feeding behaviour of this ctenophore. Prey capture by a tentacle first elicited high frequency beating in all comb rows, propelling the animal forward at a rapid speed for several seconds. This was followed by a brief period of inactivity on some or all comb rows. Then c...

This article puts forward parallel forward error correction(FEC) codec for 10 Gb/s Ethernet passive optical network (10G-EPON) , which adopts 8-parallel algorithm based on improved state space transformation (SST) method for Reed-Solomon (RS) encoder and 9-parallel algorithm based on enhanced degree computationless modified Euclid’s (EDCME) algorithm to solve the key equation for RS decoder. Th...

Vehicular ad hoc networks (VANETs) are special case of mobile ad hoc networks (MANETs) with predictable mobility constraints. In VANETs, non real-time applications are appreciated as compared to real time applications because of very frequent network partitions caused by high node mobility. The focus of this paper is on Delay tolerant networks (DTNs). DTNs are special type of networks which fol...

The leading edges of the main rotor blades of a Wessex helicopter were artificially roughened to simulate light to moderate erosion of unprotected light alloy blades. Pitch link loads were measured in forward flight for various spanwise extents of leading-edge roughness, and the values of forward speed at which a pre-set limit of oscillatory pitch link load was reached were determined. This lim...

Abstract-Most people with low vision require magnification to read. A magnifier's field of view often contains only a few letters at a time. Page navigation is the process by which the reader moves the magnifier from word to word, and from the end of one line to the beginning of the next line. Page navigation takes time and reduces reading speed. The major questions addressed in this paper are:...

today, the discussion of regularity monetary policy in achieving inflation and output gap stabilization is important. in this paper, we investigated the persistence of the output gap in iran economy and then by using a hybrid new keynesian model based on quarterly data for 1990:1- 2011:3. we compared three alternative instrumental rules in monetary policy for iran economy. the results indicated...

Error correction is an integral part of any communication system and for this purpose, the convolution codes are widely used as forward error correction codes. For decoding of convolution codes, at the receiver end Viterbi Decoder is being employed. The parameters of Viterbi algorithm can be changed to suit a specific application. The high speed and small area are two important design parameter...

Unimpaired readers process words incredibly fast and hence it was assumed that top-down processing, such as predicting upcoming words, would be too slow to play an appreciable role in reading. This runs counter the major postulate of the predictive coding framework that our brain continually predicts probable upcoming sensory events. This means, it may generate predictions about the probable up...

cdma2000 1x EV-DV (1x Evolution for highspeed integrated Data and Voice) is a high-speed wireless data packet transmission system application designed for wideband systems. In general, the system requires some form of equalization at the receiver. ISI (Intersymbol Interference) caused by multipath greatly prohibits utilization of higher order modulation scheme such as 16-QAM, which is operated ...