Reconfigurable neurons - making the most of configurable logic blocks (CLBs)

NoAn area-efficient hardware architecture is used to map fully parallel cortical columns on Field Programmable Gate Arrays (FPGA) is presented in this paper. To demonstrate the concept of this work, the proposed architecture is shown at the system level and benchmarked with image and speech recognition applications. Due to the spatio-temporal nature of spiking neurons, this has allowed such architectures to map on FPGAs in which communication can be performed through the use of spikes and signal can be represented in binary form. The process and viability of designing and implementing the multiple recurrent neural reservoirs with a novel multiplier-less reconfigurable architectures is described

Wavelet based MIMO-multicarrier system using forward error correction and beam forming

Wavelet based multicarrier systems have attracted the attention of the researchers over the past few years to replace the conventional OFDM systems in the next generation communication systems. In this paper we have investigated the performance of such wavelet based systems using forward error correction with covolutional coding and interleaving in a Wavelet-SISO system and then in a Wavelet multicarrier modulation (WMCM) multiple input multiple output (MIMO) system using Convolutional coding and beamforming to reduce the source bit rate and overall system error and increase the data rate. Results show outstanding Bit Error Rate vs. Signal to Noise Ratio Performance. Other than better performance the proposed systems keep the computational burden off the receiver that has more cost and power constraints

A review of location based services:Current developments, trends and issues

Location based services are a diverse and growing set of related technologies which may be used to provide tracking and location awareness. LBS are employed in both fixed and mobile networks. A concise overview of the development of LBS, and some of the operational issues is presented. Seen from the physical layer, LBS are constrained by multipath interference, low signal to noise power, and channel fading. LBS methodologies including cell-ID, prediction (dead-reckoning), angle of arrival (AOA), time of arrival (TOA) and observed time difference of arrival (TDOA), hybrid AOA-TOA localization and localization by finger printing are summarised. There are two principal areas of constraint to be addressed, (1) in the service segment, practical and legal issues related to the subscriber privacy require development and clarification; and (2) the ability to deliver real time data, and measure the associated mobility of a subscriber (or target) with the required level of precision