Overview of Sparse Graph for Multiple Access in Future Mobile Networks
-
Jing Lei
,
Erbao Li
Abstract
Multiple access via sparse graph, such as low density signature (LDS) and sparse code multiple access (SCMA), is a promising technique for future wireless communications. This survey presents an overview of the developments in this burgeoning field, including transmitter structures, extrinsic information transform (EXIT) chart analysis and comparisons with existing multiple access techniques. Such technique enables multiple access under overloaded conditions to achieve a satisfactory performance. Message passing algorithm is utilized for multi-user detection in the receiver, and structures of the sparse graph are illustrated in detail. Outlooks and challenges of this technique are also presented.
Funding statement: National Natural Science Foundation of China 61372098 This work is supported by the National Natural Science Foundation of China (NSFC) under grant number 61372098.
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Articles in the same Issue
- Frontmatter
- Tunable Balanced Bandpass Filter with High Common-mode Suppression Based on SLSRs
- Compact Quad-Band Bandpass Filter Using Double-Diplexing Structure
- Seven-Port Unequal Power Divider with Broadband and Large Division Ratio Characteristics Based on T-shape Stub
- A Wilkinson Power Divider with Harmonics Suppression and Size Reduction Using Meandered Compact Microstrip Resonating Cells
- A 210 GHz Power-Combined Frequency Multiplying Source with Output Power of 23.8 mW
- Fractal Based Triple Band High Gain Monopole Antenna
- Wideband Monopole Fractal Heptagonal Antenna Implementation in X-Band Frequency Range
- A Compact SIW-Fed Dielectric Antenna with Equivalently Tapered E-plane Profile
- Dual Band Notched EBG Structure based UWB MIMO/Diversity Antenna with Reduced Wide Band Electromagnetic Coupling
- A Frequency Reconfigurable MIMO Antenna System for Cognitive Radio Applications
- A Practical Millimeter-Wave Holographic Imaging System with Tunable IF Attenuator
- A Two-Stage Space-Time Adaptive Processing Method for MIMO Radar Based on Sparse Reconstruction
- Simple and Low-Cost Dual-Band Printed Microwave Absorber for 2.4- and 5-GHz-Band Applications
- Overview of Sparse Graph for Multiple Access in Future Mobile Networks
- The Lightning Electromagnetic Pulse Coupling Effect Inside the Shielding Enclosure With Penetrating Wire
- The DLR Spaceborne SAR Calibration Center
- Electron Beam Misalignment Study of MIG for 42 GHz, 200 kW Gyrotron
