PneuNet actuators emulate human finger function and have broad application potential in domestic industrial settings. To unlock their full potential, enhancing controlled stiffness is crucial. This study presents the innovative design, fabrication, evaluation of a cost-effective soft hybrid bending actuator by merging homogeneous laminar structure, composed 75 GSM printer paper, with produced t...

Limited and dynamically available resources and “no right to protection from interference” in the open access dynamic spectrum access model bring forth a serious challenge of sustenance among the secondary networks and make them more susceptible to various spectrum etiquette attacks. Among these, the most common are jamming-based denial of service (DoS) attacks, which result in packet loss. The...

The IEEE 802.11 protocol inherently provides the same long-term throughput to all the clients associated with a given access point (AP). In this paper, we first identify a clever, low-power jamming attack that can take advantage of this behavioral trait: the placement of a low-power jammer in a way that it affects a single legitimate client can cause starvation to all the other clients. In othe...

The Controlled Reception Pattern Antenna (CRPA) is an effective approach for rejecting radio frequency interference. Conventionally, the dedicated CRPA antenna and hardware are usually precisely manufactured and calibrated carefully. The computational/processing requirement is always a major challenge for implementing a CRPA receiver. Even more demanding would be to incorporate the flexibility ...

Wireless networks with the consideration of social relationships among network nodes are highly appealing for lots of important data communication services. Ensuring the security of such networks is of great importance to facilitate their applications in supporting future social-based services with strong security guarantee. This paper explores the physical layer security-based secure communica...

Performance comparisons between the three major INS/GPS system architectures for various mission scenarios will be presented in order to understand the benefits of each. The loosely coupled and tightly coupled systems will be compared in several scenarios including aircraft flying against jammers and a helicopter flying a scout mission. The tightly coupled and deep integration architectures wil...

BACKGROUND Substantial evidence indicates that exposure to electromagnetic fields (EMF) above certain levels can affect human health through triggering some biological responses. According to WHO, short-term exposure to EMF at the levels present in the home/environment do not cause any apparent detrimental effects in healthy individuals. However, now, there is a debate on whether long-term expo...

INTRODUCTION The rapid growth of wireless communication technologies has caused public concerns regarding the biological effects of electromagnetic radiations on human health. Some early reports indicated a wide variety of non-thermal effects of electromagnetic radiation on amphibians such as the alterations of the pattern of muscle extractions. This study is aimed at investigating the effects ...

Digital beamforming (DBF) techniques are capable of improving the performance of communications systems significantly. However, if the transmitted signals are conflicted with strong interference especially in the direction of the transmitted beams, these directional jamming signals will severely degrade the system performance. In order to efficiently mitigate the interference of the directional...