Long-range (LoRa) technology is most widely used for enabling low-power wide area
networks (WANs) on unlicensed frequency bands. Despite its modest data rates, it provides …

We propose a new index-modulation-aided differential chaos shift keying (DCSK) system
using frequency-and-time resources, referred to as CTIM-DCSK system, to achieve high …

Cyber security is nowadays synonymous with the reliability of elements connected to the
internet. Better control of factories, security systems or even individual sensors is possible …

A new differential chaos shift keying scheme with multidimensional index modulation,
referred to as MIM-DCSK scheme, is proposed in this paper. This design objective of the …

To realize high energy-efficient, high spectrum-efficient, and high-throughput data
transmission, a multi-carrier differential chaos shift keying communication system with hybrid …

This article proposes an integration of multiple reconfigurable intelligent surfaces (RISs) with
a relay to enhance the performance of a low-power wide-area (LPWA) network. Specifically …

Much exploration has been conducted to ensure the successful implementation of
underground applications based on wireless underground sensor networks (WUSNs) …

Long range (LoRa) is a widely adopted modulation scheme for Internet of Things (IoT), but
its data rate is low. To tackle this problem, in this letter, we introduce a novel concept of …

In this paper, we propose a wireless system where multiple advanced reconfigurable
intelligent surfaces (RISs) are combined with a traditional relay for significantly …

Long Range (LoRa) systems have recently attracted significant attention within the research
community as well as for commercial use due to their ability to transmit data over long …