The vast demand for diverse applications raises new networking challenges, which have
encouraged the development of a new paradigm of Internet of Things (IoT), eg, LoRa. LoRa …

In this letter, we propose dual-mode chirp spread spectrum (DM-CSS) modulation for low-
power wide-area networks. DM-CSS is capable of achieving a higher spectral efficiency …

Chirp spread spectrum (CSS) is the modulation technique currently employed by Long-
Range (LoRa), which is one of the most prominent Internet of Things wireless …

In this work, we introduce dual-mode (DM) time domain multiplexed (TDM) chirp spread
spectrum (CSS), which offers improved spectral and energy efficiency for low-power wide …

This article introduces a novel frequency-shift chirp spread spectrum (FSCSS) system with
index modulation (IM). By using combinations of orthogonal chirp signals for message …

Long-range (LoRa) modulation is an orthogonal modulation scheme that uses linearly-
modulated up chirps to represent information bits. Its constant envelope and good bit-error …

Chirps spread spectrum (CSS) modulation is the heart of long-range (LoRa) modulation
used in the context of long-range wide area network (LoRaWAN) in internet of things (IoT) …

Long-Range (LoRa) is one of the emerging technologies in low-power wide-area networks
(LPWANs). In this letter, we proposed a Time Domain Multiplexed LoRa (TDM-LoRa) …

In the asynchronous massive machine-type communications (mMTCs) supported by
massive MIMO-based grant-free random access, where all active devices asynchronously …

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 …