Non-Orthogonal Multiple Access With Sequence Block Compressed Sensing Multiuser Detection for 5G

Abstract

One objective of the 5G communication system and beyond is to support massive machine type of communication (mMTC) to propel the fast growth of diverse Internet of Things use cases. The mMTC aims to provide connectivity to tens of billions sensor nodes. The dramatic increase of sensor devices and massive connectivity impose critical challenges for the network to handle the enormous control signaling overhead with limited radio resource. Non-Orthogonal Multiple Access (NOMA) is a new paradigm shift in the design of multiple user detection and multiple access. NOMA with compressive sensing based multiuser detection is one of the promising candidates to address the challenges of mMTC. The survey article aims at providing an overview of the current state-of-art research work in various compressive sensing based techniques that enable NOMA. We present characteristics of different algorithms and compare their pros and cons, thereby provide useful insights for researchers to make further contributions in NOMA using compressive sensing techniques.Keywords Non-orthogonal CDMA · massive connectivity · grant free medium access · compressive sensing multiuser detection IntroductionThe fifth generation (5G) wireless communication system envisions three major use cases: (i) enhanced mobile broadband (eMBB), (ii) ultra-reliable and

Coded random access for massive MTC under statistical channel knowledge

“…The most straightforward option is to combine this multi-user technique with classical ones used for the massive access, e.g. slotted ALOHA as proposed in 5G standardization [5,6].…”

“…The recent trend for IoT communications brings the research community to look at new performance metrics thus broadening the scope of classical cellular networks [1,2]. For instance, a strong interest is given to the the impact of massive access, short packets and capacity evaluation [3,4,5].…”

“…Indeed, any communication prior to the data or access request transmission would introduce high signalling overhead and would be irrelevant in the case of access request, since users willing to access the network would need to be already identified for allowing their channel estimation before they even send their access requests. For instance, in [7,8,9] the channel is considered as a known parameter at the receiver. Having a method able to work under statistical Channel State Information (CSI) only, is therefore a harsh constraint we deal with in this paper.…”

RSBA-Resource Sharing Beamforming Access for 5G-mMTC

“…In particular, we will assume that the multiple access (MA) is done in an autonomous way, [8], which is the simplest approach. However, this is more challenging for the design of the receiver [9], [10], [11] and [12], because nothing is known a priori in terms of resource scheduling or other important parameters for channel estimation.…”

Novel Codebook-Based MC-CDMA with Compressive Sensing Multiuser Detection for Sporadic mMTC

“…At the receiver, CSMUD uses compressive sensing algorithms to jointly detect the activity and data. A comprehensive study of the CSMUD is given in our review article [18].…”