The employment of wireless links for spacecraft onboard data communication is a new and challenging research topic. This new technology can be conveniently used for attitude determination and control sensors and actuators. Still, providing energy efficient data collection is of paramount importance to such an onboard wireless sensors and actuators network (OWSAN). This paper proposes a power ma...

We consider the problem of mitigating a highly varying wireless channel between a ground node transmitting to a small, low-altitude unmanned aerial vehicle (UAV) in a wireless mesh network. One approach is to use multiple receiver nodes on the UAV that exploit the channel’s spatial/temporal diversity and that cooperate to improve overall packet reception. We present a series of measurement stud...

OFDM is a technique used in modern broadband wireless communications systems. OFDM has been adopted for wireless standards such as IEEE 802.11a. In this paper, different Power Spectral Density (PSD) curves of OFDM signal based on WLAN with various pulse shapes are presented. OFDM waveform is analyzed in frequency domain response for different modulation techniques such as BPSK, QPSK, 16-QAM, 64...

Compensating for deviations in the resonant frequency is crucial magnetic resonance coupling wireless power transfer (WPT) systems. Thus, this study proposes a communication-less receiver-side frequency-tuning scheme that compensates reactance receiver without communicating with transmitter. The proposed comprises an inductor-capacitor-capacitor compensation topology at transmitter and half-bri...

Wireless sensors are everywhere. To address their energy supply, we proposed an end-to-end design for polar-coded integrated data and networking (IDEN), where the conventional signal processing modules, such as modulation/demodulation channel decoding, replaced by deep neural networks (DNNs). Moreover, input-output relationship of harvester (EH) is also modelled a DNN. By jointly optimizing bot...

Motivation: Multicast applications such as live stream of a football match, IP-based radio stations, webcast of live sessions are ever increasing. In recent years there has been significant commercial interest in using multicast traffic from public-service broadcasters and other DSL TV providers and are expected to grow. This puts pressure on the last-mile wireless technologies such as wireless...

Mobile Ad hoc Network is a collection of wireless mobile nodes forming a network without using any existing infrastructure. MANET is a collection of mobile nodes equipped with both a wireless-transmitter and receiver that communicate with each other via bi-directional wireless links either directly or indirectly.This paper aims to pioneer and to assort current techniques of Intrusion Detection ...

In recent wireless networking optical communication is an emerging field. Another novel approach of optical communication using Narrow Line of Sight technique is discussed. Array of trans­receivers are placed on the ceiling to communicate with the mobile nodes (users / trans­receivers) instead of a single transmitter. An intelligent position tracking technique based on the informations availabl...

To achieve an optimum transmission over a noisy wireless channel, both the source coding and network should be jointly adapted. An acceptable video quality in wireless environ‐ ment can be obtained by the adjustment of parameters in video codec and wireless network. For the former, people have proposed many error resilient video encoding algorithms to en‐ hance the robust performance of the com...

Transmission of continuous media such as video over time-varying wireless communication channels can benefit from the use of adaptation techniques in both source and channel coding. An adaptive feedback-based wireless video transmission scheme is investigated in this research with special emphasis on feedback-based adaptation. To be more specific, an interactive adaptive transmission scheme is ...