Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/637632
Title: Software-Defined Device-to-Device (D2D) Communications in Virtual Wireless Networks With Imperfect Network State Information (NSI)
Authors: Yegui Cai;F. Richard Yu;Chengchao Liang;Bo Sun;Qiao Yan
subject: software-defined networking (SDN)|network function virtualization (NFV)|Device-to-device (D2D) communications
Year: 2016
Publisher: IEEE
Abstract: Software-defined networking (SDN) and network function virtualization (NFV) are a promising system architecture and control mechanism for future networks. Although some works have been done on wireless SDN and NFV, recent advancements in device-to-device (D2D) communications are largely ignored in this novel framework. In this paper, we study the integration of D2D communication in the framework of SDN and NFV. An inherent challenge in supporting software-defined D2D is the imperfectness of network state information, including channel state information (CSI) and queuing state information, in virtual wireless (QSI) networks. To address this challenge, we formulate the resource sharing problem in this framework as a discrete stochastic optimization problem and develop discrete stochastic approximation algorithms to solve this problem. Such algorithms can reduce the computational complexity compared with exhaustive search while achieving satisfactory performance. Both the static wireless channel and time-varying channels are considered. Extensive simulations show that users can benefit from both wireless network virtualization and software-defined D2D communications, and our proposed scheme can achieve considerable performance gains in both system throughput and user utility under practical network settings.
URI: http://localhost/handle/Hannan/183703
http://localhost/handle/Hannan/637632
ISSN: 0018-9545
1939-9359
volume: 65
issue: 9
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7283658.pdf1.2 MBAdobe PDFThumbnail
Preview File
Title: Software-Defined Device-to-Device (D2D) Communications in Virtual Wireless Networks With Imperfect Network State Information (NSI)
Authors: Yegui Cai;F. Richard Yu;Chengchao Liang;Bo Sun;Qiao Yan
subject: software-defined networking (SDN)|network function virtualization (NFV)|Device-to-device (D2D) communications
Year: 2016
Publisher: IEEE
Abstract: Software-defined networking (SDN) and network function virtualization (NFV) are a promising system architecture and control mechanism for future networks. Although some works have been done on wireless SDN and NFV, recent advancements in device-to-device (D2D) communications are largely ignored in this novel framework. In this paper, we study the integration of D2D communication in the framework of SDN and NFV. An inherent challenge in supporting software-defined D2D is the imperfectness of network state information, including channel state information (CSI) and queuing state information, in virtual wireless (QSI) networks. To address this challenge, we formulate the resource sharing problem in this framework as a discrete stochastic optimization problem and develop discrete stochastic approximation algorithms to solve this problem. Such algorithms can reduce the computational complexity compared with exhaustive search while achieving satisfactory performance. Both the static wireless channel and time-varying channels are considered. Extensive simulations show that users can benefit from both wireless network virtualization and software-defined D2D communications, and our proposed scheme can achieve considerable performance gains in both system throughput and user utility under practical network settings.
URI: http://localhost/handle/Hannan/183703
http://localhost/handle/Hannan/637632
ISSN: 0018-9545
1939-9359
volume: 65
issue: 9
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7283658.pdf1.2 MBAdobe PDFThumbnail
Preview File
Title: Software-Defined Device-to-Device (D2D) Communications in Virtual Wireless Networks With Imperfect Network State Information (NSI)
Authors: Yegui Cai;F. Richard Yu;Chengchao Liang;Bo Sun;Qiao Yan
subject: software-defined networking (SDN)|network function virtualization (NFV)|Device-to-device (D2D) communications
Year: 2016
Publisher: IEEE
Abstract: Software-defined networking (SDN) and network function virtualization (NFV) are a promising system architecture and control mechanism for future networks. Although some works have been done on wireless SDN and NFV, recent advancements in device-to-device (D2D) communications are largely ignored in this novel framework. In this paper, we study the integration of D2D communication in the framework of SDN and NFV. An inherent challenge in supporting software-defined D2D is the imperfectness of network state information, including channel state information (CSI) and queuing state information, in virtual wireless (QSI) networks. To address this challenge, we formulate the resource sharing problem in this framework as a discrete stochastic optimization problem and develop discrete stochastic approximation algorithms to solve this problem. Such algorithms can reduce the computational complexity compared with exhaustive search while achieving satisfactory performance. Both the static wireless channel and time-varying channels are considered. Extensive simulations show that users can benefit from both wireless network virtualization and software-defined D2D communications, and our proposed scheme can achieve considerable performance gains in both system throughput and user utility under practical network settings.
URI: http://localhost/handle/Hannan/183703
http://localhost/handle/Hannan/637632
ISSN: 0018-9545
1939-9359
volume: 65
issue: 9
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7283658.pdf1.2 MBAdobe PDFThumbnail
Preview File