Bui Thu Lam, Le Quy Don Technical University
Deputy Editor-In-Chief
Tran Xuan Nam, Le Quy Don Technical University
Advisory Member
Pham The Long, Le Quy Don Technical University
Nguyen Binh, Posts and Telecommunications Institute of Technology
Dinh The Cuong, Directorate of Information Technology
Luong Chi Mai, Vietnam Academy of Science and Technology
Huynh Quyet Thang, Hanoi University of Science and Technology
Nguyen Huu Thanh, Hanoi University of Science and Technology
Vu Duc Thi, Vietnam National University, Hanoi
Nguyen Thanh Thuy, Vietnam National University, Hanoi
Dao Thanh Tinh, Le Quy Don Technical University
Scientific Secretary
Nguyen Van Giang, Le Quy Don Technical University
Table: Issue 14
ID Paper
[Pdf link]
Applications of TCAD simulation software to the study of floating-gate device.
Dang Cong Thinh, Mai Tri Hao, Hoang Trang
The floating-gate device has become an established component of all electronic systems, especially Non-volatile memories in recent years. This paper produces a study for this device including the structure and operation (read, program/write and erase). A complete flow which uses ATHENA, ATLAS and DEVEDIT3D tools for 2D and 3D structure simulations including I-V characteristics, Channel Hot Electron Injection, and Fowler-Nordheim Tunnel simulations are performed in TCAD environment. .
An improvement of clustering-based objective reduction method for many-objective optimization problems.
Nguyen Xuan Hung, Bui Thu Lam, Tran Cao Truong.
Multi-Objective Evolutionary Algorithms (MOEAs) have been widely used for solving multi-objective optimization problems (MOPs). As the number of objectives is more than three, MOPs are regarded as many-objective optimization problems (MaOPs). They bring difficulties to existing MOEAs in terms of deterioration of the search ability, requirement of exponential population size, visualization of results, and especially computation cost. Although in real world, numerous optimization problems are considered as MaOPs but they contain redundant objectives. With these problems, removing the redundant objectives can alleviate these difficulties of MaOPs. Recently, clustering has been applied to remove redundant objectives such as Mutual Information and Clustering Algorithm (MICA-NORMOEA) and Objective Clustering-Based Objective Reduction Algorithm (OC-ORA). However, these clustering-based algorithms are computationally complex and they also manually tune a set of parameters. This paper proposes a clustering-based objective reduction method (COR) for MaOPs. The proposed method is more efficient than existing ones and it can automatically determine these parameters. Moreover, the proposed method still achieves comparable results with existing methods.
Performance analysis of RF energy harvesting cooperative communication networks with DF scheme.
Hoang Duc Vinh, Vu Van Son, Bui Anh Duc, Tran Manh Hoang, Pham Thanh Hiep.
Wireless energy transfer cooperative communication systems are analyzed in this paper. In these systems, a source node can communicate with a destination node directly or via the selected relay nodes, while relay nodes harvest energy from radio frequency for forwarding the received signal. In addition, the decode and forward (DF) protocol is applied to relay nodes, and selection combination technique is employed at the destination in order to select the best relay node. The system performance is presented by outage probability expressions over independent and identically distributed (i.i.d) Nakagami-m channel model. The theoretical analysis and the closed-form expression of outage probability are derived and compared with Monte - Carlo simulations. The simulation results are similar to the theoretical analysis results, it verifies our proposed derivation method.
Performance analysis of full-duplex decode-and-forward relay network with spatial modulation.
Nguyen Le Van, Nguyen Ba Cao, Tran Xuan Nam
In this paper, we analyze performance of the Full Duplex (FD) Decode-and-Forward relay network using Spatial Modulation (SM) technique, called SM-FD relay network, in the presence of Residual Self-Interference (RSI) due to imperfect Self-Interference Cancellation (SIC). Based on mathematical calculation, the exact expressions of Outage Probability (OP), Symbol Error Probability (SEP) and Ergodic capacity of the SM-FD relay network is derived over Rayleigh fading channel. Impacts of RSI, number of received antennas and data transmission rate on the system performance are also investigated and compared with those of the SM Half-Duplex (SM-HD) relay network. Finally, the analytical results are validated by Monte-Carlo simulation.