Name
Title | ||
|---|---|---|
Signature-based Non-orthogonal Multiple Access (S-NOMA) for Massive Machine-Type Communications in 5G. |
Abstract | ||
|---|---|---|
The problem of providing massive connectivity in Internet-of-Things (IoT) with a limited number of available resources motivates the non-orthogonal multiple access (NOMA) solutions. In this article, we provide a comprehensive review of the signature-based NOMA (S-NOMA) schemes as potential candidates for IoT. The signature in S-NOMA represents the way the data stream of an active device is spread over available resources in a non-orthogonal manner. It can be designed based on device-specific codebook structures, delay patterns, spreading sequences, interleaving patterns, and scrambling sequences. Additionally, we present the detection algorithms employed to decode each deviceu0027s data from non-orthogonally superimposed signals at the receiver. The bit error rate of different S-NOMA schemes is simulated in impulsive noise environments, which can be important in machine-type communications. Simulation results show that the performance of the S-NOMA schemes degrades under such conditions. Finally, research challenges in S-NOMA oriented IoT are presented. |
Year | Venue | Field |
|---|---|---|
2018 | arXiv: Information Theory | Noma,Mathematical optimization,Scrambling,Data stream,Internet of Things,Computer engineering,Mathematics,Interleaving,Active devices,Codebook,Bit error rate |
DocType | Volume | Citations |
Journal | abs/1808.07163 | 0 |
PageRank | References | Authors |
0.34 | 5 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mostafa Mohammadkarimi | 1 | 19 | 5.51 |
| Muhammad Ahmad Raza | 2 | 0 | 0.68 |
| Octavia A. Dobre | 3 | 2064 | 181.08 |