Suchergebnisse - "D.c. programming"

Optimization of Cooperative Beamforming for SC-FDMA Multi-User Multi-Relay Networks by Tractable D.C. Programming von Ha Hoang Kha, Hoang Duong Tuan, Nguyen, H. H., Pham, T. T.

“… ) among source users subject to individual power constraints at each relay. Such a beamforming design is shown to be a hard nonconvex optimization problem and therefore it is mathematically challenging to find the optimal solution …”
Volltext

Optimizing radial basis functions by d.c. programming and its use in direct search for global derivative-free optimization von Le Thi, H. A., Vaz, A. I. F., Vicente, L. N.

“… In this paper, we address the global optimization of functions subject to bound and linear constraints without using derivatives of the objective function …”
Volltext

Optimizing DF Cognitive Radio Networks With Full-Duplex-Enabled Energy Access Points von Hong Xing, Xin Kang, Kai-Kit Wong, Nallanathan, Arumugam

“… With the recent advances in radio frequency (RF) energy harvesting (EH) technologies, wireless powered cooperative cognitive radio network (CCRN) has drawn an …”
Volltext

Joint Optimization of Source Power Allocation and Cooperative Beamforming for SC-FDMA Multi-User Multi-Relay Networks von Kha, H. H., Tuan, H. D., Nguyen, H. H.

“… ) under various transmitted power constraints, and (ii) minimizing the total transmitted power subject to prescribed SINR thresholds of users …”
Volltext

D.C. programming for cooperative beamforming in SC-FDMA multi-user multi-relay networks von Kha, Ha H., Tuan, H. D., Nguyen, Ha H., Pham, Tung T.

“… ) among users subject to individual power constraints at each relay. Such a beamforming design is shown to be a hard nonconvex program and therefore it is mathematically challenging to find the optimal solution …”
Volltext

Relay selection in multi-user amplify-forward wireless relay networks von Enlong Che, Tuan, H. D., Nguyen, H. H.

“… This is the minimization of a nonconvex objective function subject to mixed integer constraints …”
Volltext

Power Control for Wireless Cellular Systems via D.C. Programming von Phan, Khoa T., Vorobyov, Sergiy A., Telambura, Chintha, Le-Ngoc, Tho

“… Power control at the base station is typically used in wireless cellular networks in order to optimize the transmission subject to quality of service (QoS) constraints …”
Volltext

Portfolio optimization under D.C. transaction costs and minimal transaction unit constraints von Konno, Hiroshi, Wijayanayake, Annista

“… maximization problem subject to a constraint on the level of risk measured …”
Volltext

Joint design of user power allocation and relay beamforming in two-way MIMO relay networks von Kha, Ha H., Tuan, H. D., Nguyen, Ha H., Tam, H. H. M.

“… single-antenna users. The design aims at maximizing the minimum information rate among user pairs subject to various practical power constraints at the users and relays …”
Volltext

Joint design of source power allocation and relay beamforming in multi-user wireless networks von Rashid, Umar, Kha, H. H., Tuan, H.D., Nguyen, H.H.

“… ) among users subject to various power constraints. An equivalent d.c. (difference of two convex functions …”
Volltext

Cooperative Task Offloading in Three-Tier Mobile Computing Networks: An ADMM Framework von Wang, Yue, Tao, Xiaofeng, Zhang, Xuefei, Zhang, Ping, Hou, Y. Thomas

“… In this network, we jointly optimize the offloading decision and the computation resource allocation to minimize the average task duration subject to the limited battery capacity of devices …”
Volltext

Joint Optimization of Source Precoding and Relay Beamforming in Wireless MIMO Relay Networks von Rashid, U., Tuan, H. D., Kha, H. H., Nguyen, H. H.

“… ) among all users subject to various transmission power constraints. Such a program of nonconvex objective minimization under nonconvex constraints is transformed to a canonical …”
Volltext

A class of convexification and concavification methods for non-monotone optimization problems von Wu, Z. Y., Lee, H. W. J., Yang, X. M.

“… problems, and canonical D.C. programming problems by the proposed convexification and concavification methods …”
Volltext

Optimized Resource Allocation in Wireless Systems von Rashid, Umar

“… Previous studies on this subject have reported only numerically cumbersome and non-tractable solutions …”
Volltext