Introduction In addition to recommend high quality articles to MMTC members, another goal of the Review Board is to promote MMTC and initiate helpful exchange between technical committees. Resulting from the hard work of Review Board members, we are glad to advise that, starting from this issue, the front page of our latest R-letter will be displayed on the SIGMM Records webpage. Names of R-art...

We propose efficient and low-complexity multiuser detection (MUD) algorithms for Gaussian multiple access channel (G-MAC) short-packet transmission in massive machine type communications. To do so, we first formulate the G-MAC MUD problem as a sparse signal recovery obtain exact approximate joint prior distribution of vector to be recovered. Then, employ Bayesian message passing (AMP) with opti...

Throughout this study, a novel network model for massive machine-type communications (mMTC) is proposed using compressive sensing (CS) algorithm and non-orthogonal multiple access (NOMA) scheme. Further, physical-layer security (PLS) applied in to provide secure communication. We first assume that all the legitimate nodes operate full-duplex mode; then, an artificial noise (AN) signal emitted w...

Since the emerging 5G wireless network is expected to significantly revolutionize thefield of communication, its standardization and design should regard internet ofthings (IoT) among main orientations. Also, IoT applications introducenew requirements other than throughput support massive machine-type commu-nication (mMTC) where small data packets are occasionally sent. Therefore, moreimportanc...

Future wireless cellular networks are envisioned to not only enhance broadband access for human-centric applications, but also offer massive connectivity across tens of billions devices machine-centric applications empowered by Internet Things (IoT) technologies (e.g., smart factory and city). To embrace the forthcoming era IoT, fifth-generation (5G) communication standard has already identifie...

Wireless underground sensor networks (WUSNs) promise to deliver substantial social and economic benefits across different verticals. However, many of the relevant application scenarios are located in remote areas with no supporting infrastructure available. To address this challenge, we conceptualize study direct-to-satellite (U-DtS) connectivity approach, implying reception signals sent by mas...

Irregular repetition slotted aloha (IRSA) is a grant-free random access protocol for massive machine-type communications, where large number of users sporadically send their data packets to base station (BS). IRSA completely distributed multiple protocol: in any given frame, small subset the users, i.e., active transmit replicas packet randomly selected resource elements (REs). The first step d...

The integration of unmanned aerial vehicles (UAVs) into spectrum sensing cognitive communication networks can offer many benefits for massive connectivity services in 5G communications and beyond; hence, this work analyses the performance non-orthogonal multiple access-based UAV-assisted ultra-reliable low-latency (URLLCs) machine-type (mMTC) services. An mMTC service requires better energy eff...