Tracker quality monitoring by nondedicated calibration flights

Tracker systems are a keystone in the surveillance processing chain of air navigation service providers (ANSPs). The quality and performance of tracking systems predetermines the accuracy of trajectory estimations in flightplan systems, the false alarm rate of safety net features like short term conflict alert (STCA), and the accuracy of the traffic situation display at […]

Cooperative Spectrum Sharing Protocol with Selective Relaying System

ABSTRACT In this paper, we propose a two-phase protocol based on cooperative relaying for a secondary system to achieve spectrum access along with a selective relaying primary system. The primary system comprises of a transmitter-receiver pair PT-PR and M relays Ri, i G {1,2,⋯ , M}. The secondary system is a multi-user system with N […]

Secure communication in the low-SNR regime: A Characterization of the energy-secrecy tradeoff

ABSTRACT             Secrecy capacity of a multiple-antenna wiretap channel is studied in the low signal-to-noise ratio (SNR) regime. Expressions for the first and second derivatives of the secrecy capacity with respect to SNR at SNR = 0 are derived. Transmission strategies required to achieve these derivatives are identified. In particular, it is shown that it […]

Fast Sign Detection Algorithm for the RNS Moduli Set 2n+1-1, 2n-1, 2n

ABSTRACT                                    This brief presents a fast sign detection algorithm for the residue number system moduli set {2n+1 − 1, 2n − 1, 2n}. First, a sign detection algorithm for the restricted moduli set is described. The new algorithm allows for parallel implementation and consists exclusively of modulo 2n additions. Then, a sign detection unit […]

Area-Delay-Power Efficient Fixed-Point LMS Adaptive Filter With Low Adaptation-Delay

ABSTRACT In this paper, we present an efficient architecture for the implementation of a delayed least mean square adaptive filter. For achieving lower adaptation-delay and area-delay-power efficient implementation, we use a novel partial product generator and propose a strategy for optimized balanced pipelining across the time-consuming combinational blocks of the structure. From synthesis results, we […]

Data Encoding Techniques for Reducing Energy Consumption in Network-on-Chip

ABSTRACT As technology shrinks, the power dissipated by the links of a network-on-chip starts to compete with the power dissipated by the other elements of the communication subsystem, namely, the routers and the network interfaces. In this paper, we present a set of data encoding schemes aimed at reducing the power dissipated by the links […]

Input Vector Monitoring Concurrent BIST Architecture Using SRAM Cells

ABSTRACT Input vector monitoring concurrent built-in self test (BIST) schemes perform testing during the normal operation of the circuit without imposing a need to set the circuit offline to perform the test. These schemes are evaluated based on the hardware overhead and the concurrent test latency (CTL), i.e., the time required for the test to […]

Area–Delay–Power Efficient Carry-Select Adder

ABSTRACT                             In this paper, we made an analysis on the logic operations involved in conventional carry select adder (CSLA) and binary to excess-1 converter (BEC)-based CSLA to study the data-dependency and to identify redundant logic operations. We have eliminated all the redundant logic operations present in conventional CSLA and proposed a new logic […]

Area-Delay Efficient Binary Adders in QCA

ABSTRACT As transistors decrease in size more and more of them can be accommodated in a single die, thus increasing chip computational capabilities. However, transistors cannot get much smaller than their current size. The quantum-dot cellular automata (QCA) approach represents one of the possible solutions in overcoming this physical limit, even though the design of […]

Improved 8-Point Approximate DCT for Image and Video Compression Requiring Only 14 Additions

ABSTRACT: Video processing systems such as HEVC requiring low energy consumption needed for the multimedia market has lead to extensive development in fast algorithms for the efficient approximation of 2-D DCT transforms. The DCT is employed in a multitude of compression standards due to its remarkable energy compaction properties. Multiplier-free approximate DCT Transforms have been […]