This paper concerns uplink grant-free nonorthogonal multiple access, where the
handshaking procedure is not required to reduce control signaling overhead and …

Grant-free non-orthogonal multiple access is an emerging research topic in machine-type
communications, which is used to reduce signaling overhead. In this context, this letter …

Given the requirements of increased data rate and massive connectivity in the Internet-of-
things (IoT) applications of the fifth-generation communication systems (5G), non-orthogonal …

Non-orthogonal multiple access (NOMA) can support more users than OMA techniques
using the same wireless resources, which is expected to support massive connectivity for …

This letter focuses on joint user activity and data detection in the uplink grant-free non-
orthogonal multiple access systems based on approximate message passing (AMP) and …

For massive machine-type communications, centralized control may incur a prohibitively
high overhead. Grant-free non-orthogonal multiple access (NOMA) provides possible …

Non-orthogonal multiple access (NOMA) has been regarded as one of the promising key
technologies for future 5G systems. In the uplink grant-free NOMA schemes, dynamic …

In this work, a multiple user deep neural network-based non-orthogonal multiple access
(NOMA) receiver is investigated considering channel estimation error. The decoding of the …

A feature of the Internet of Things (IoT) is that some users in the system need to be served
quickly for small packet transmission. To address this requirement, a new multiple-input …

In this letter, we propose a deep learning-aided multi-user detection (DeepMuD) in uplink
non-orthogonal multiple access (NOMA) to empower the massive machine-type …