Cost-Aware SEcure Routing (CASER) Protocol Design for Wireless Sensor Networks

Cost-Aware SEcure Routing (CASER) Protocol Design for Wireless Sensor Networks Abstract: Lifetime optimization and security are two conflicting design issues for multi-hop wireless sensor networks (WSNs) with non-replenishable energy resources. In this paper, we first propose a novel secure and efficient Cost-Aware SEcure Routing (CASER) protocol to address these two conflicting issues through two adjustable […]


Floating-Point Butterfly Architecture Based on Binary Signed-Digit Representation

Floating-Point Butterfly Architecture Based on Binary Signed-Digit Representation  Abstract: Fast Fourier transform (FFT) coprocessor, having a significant impact on the performance of communication systems, has been a hot topic of research for many years. The FFT function consists of consecutive multiply add operations over complex numbers, dubbed as butterfly units. Applying floating-point (FP) arithmetic to […]