A Novel Non-Orthogonal Multiple Access with Space-Time Line Codes for Massive IoT Networks

Lee, Ki-Hun; Yeom, Jeong Seon; Jung, Bang Chul; Joung, Jingon

doi:10.1109/vtcfall.2019.8891092

Cited by 9 publications

(16 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This makes the analysis challenging, therefore, different approaches are introduced to solve this issue. For instance, the authors of [40] used union bound for the outer integration and exponential bound for the inner integration. Then applied the total probability theorem and Tylor series to get the average BER.…”

Section: E In Uplinkmentioning

confidence: 99%

“…Improved sum rate and lower BER if noted compared to conventional NOMA. Reference [40] considers constellation rotation with space-time line code (STLC) for two NOMA users in the UL, where the BS is equipped with two receiving antennas and each user is equipped with a single antenna. The channel between each user and each receiving antenna at the BS is assumed to be quasi-static for two time slots and known to the user.…”

Section: B Constellation Rotationmentioning

confidence: 99%

See 1 more Smart Citation

Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Yahya¹,

Ahmed²,

Alsusa³

et al. 2023

Preprint

View full text Add to dashboard Cite

<div>Non-orthogonal multiple access (NOMA) has received an enormous attention in the recent literature due to its potential to improve the spectral efficiency of wireless networks. For several years, most of the research efforts on the performance analysis of NOMA were steered towards the ergodic sum rate and outage probability. More recently, error rate analysis of NOMA has attracted massive attention and sparked massive number of researchers whose aim was to evaluate the error rate of the various NOMA configurations and designs. Therefore, the large number of publications that appeared in a short time duration made highly challenging for the research community to identify the contribution of the different research articles. Therefore, this work aims at surveying the research work that considers NOMA error rate analysis and classifying the contributions of each work. Therefore, work redundancy and overlap can be minimized, research gabs can be identified, and future research directions can be outlined. Moreover, this work presents the principles of NOMA error rate analysis.</div>

show abstract

Section: E In Uplinkmentioning

confidence: 99%

Section: B Constellation Rotationmentioning

confidence: 99%

Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Yahya¹,

Ahmed²,

Alsusa³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…With this perspective, the space-time line code (STLC)based NOMA system (STLC NOMA) has been proposed for two-user uplink IoT networks, assuming that each STA has its own CSI, while the AP has only the channel gain of the wireless channel vector from each STA to itself, not full CSI of the STA (CSIT) in [15], [16]. The STLC was proposed in [17] as the symmetric communication technique of the well-known space-time block code (STBC).…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Uplink NOMA With Constellation–Rotated STLC for IoT Networks

Lee

Yeom

Joung

et al. 2022

IEEE Open J. Commun. Soc.

Self Cite

View full text Add to dashboard Cite

We investigate the uplink non-orthogonal multiple access (NOMA)-based Internet-of-Things (IoT) networks, where each IoT device (station: STA) equipped with a single antenna exploits the constellation-rotated space-time line code (CR-STLC) to send signals to an access point (AP) equipped with two receive antennas. The AP decodes the signals transmitted from the STAs with the optimal joint maximum-likelihood (JML) detector. As a main result, we mathematically analyze both the bit-error-rate (BER) performance and the spatial diversity order of each STA in the two-user uplink CR-STLC NOMA system. In particular, it is shown that the two-user uplink CR-STLC NOMA system achieves the optimal diversity order regardless of the constellation rotation angle in the high signal-to-noise ratio (SNR) regime. We also consider two different rotation angle optimization techniques (dynamic rotation & fixed rotation) to improve the BER performance in the practical SNR regime, and found that the fixed rotation approach is simple but yields almost the same performance as the dynamic approach. Finally, we show that the uplink CR-STLC NOMA system achieves the spatial diversity order of 1 even when more than two STAs send packets simultaneously. It is worth noting that all STAs obtain an improved spatial diversity gain compared to that without constellation rotation.

show abstract

“…In [10]- [11], the authors utilized the artificial noise (AN) to improve the security of the STLC system. Furthermore, the STLC scheme has been applied to various communication systems, such as two-way relay (TWR) systems [12]- [14], antenna shuffling [15], blind decoding systems [16] and massive internet-ofthings (IoT) networks [17]- [19]. Concretely, the authors of [12] proposed a novel STLC-based TWR method to improve the energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…Based on machine learning, in [16], a novel blind decoding method was proposed for STLC systems. For massive IoT networks, the authors of [17] proposed a novel uplink non-orthogonal multiple access (NOMA) scheme which exploits STLC to send data. In [18], the authors investigated the performance of uplink NOMA systems for IoT applications.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis and Antenna Selection for Space Time Line Code

et al. 2020

View full text Add to dashboard Cite

In this paper, we investigate the recently developed space time line code (STLC) scheme, which utilizes the channel state information (CSI) for encoding at the transmiter to achieve full spatial diversity gain. The theoretical analysis of the bit error rate (BER) performance for STLC is first evaluated. Moreover, aiming at alleviating the cost of radio frequency (RF) chains, antenna selection at both the transmitter and receiver sides is developed by minimizing the derived instantaneous BER. Furthermore, in the context of a flat Rayleigh fading channel, we derive an upper bound for quantifying the BER performance of STLC with both transmit and receive antenna selection. Finally, simulation results validate the accuracy of the above theoretical analysis results and show the performance improvement of the developed antenna selection schemes. INDEX TERMS Space time line code (STLC), multiple input multiple output (MIMO), antenna selection (AS), BER.

show abstract

A Novel Non-Orthogonal Multiple Access with Space-Time Line Codes for Massive IoT Networks

Cited by 9 publications

References 16 publications

Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Performance Analysis of Uplink NOMA With Constellation–Rotated STLC for IoT Networks

Performance Analysis and Antenna Selection for Space Time Line Code

Contact Info

Product

Resources

About