QoS-aware Joint Power and Subchannel Allocation Algorithms for Wireless Network Virtualization PDF Download
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Author: Junyi Wei
Publisher:
ISBN:
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Languages : en
Pages :
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Author: Junyi Wei
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Vikas Jumba
Publisher:
ISBN:
Category :
Languages : en
Pages :
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"Wireless virtualization is emerging as a promising paradigm to tackle the issues of spectrum-crisis and network ossification via enabling common shared substrate of wireless resources among service providers, commonly referred as slices. Due to random nature of wireless channels and limited resources, virtualized wireless network (VWN) requires an efficient resource provisioning policy to operate. The objective of this thesis is to study and propose quality-of-service-aware (QoS-aware) resource provisioning policies applicable to VWNs.The first part of the thesis focuses on the design of resource provisioning policies to satisfy instantaneous requirements (e.g., minimum reserved rates and resources) of slices and minimize the VWN outage due to infeasibility. At first, an optimal algorithm for resource provisioning is developed to simultaneously satisfy the rate and resource (power and sub-carriers) based requirements of two groups of slices. Afterwards, to deal with the issue of infeasibility in VWNs due to limited wireless resources, an admission control policy is proposed. In this context, an optimal admission control algorithm is developed to dynamically adjust the requirements of slices according to channel state information (CSI) and priorities of slices. Finally, to further improve the feasibility region, a joint power, sub-carrier and antenna allocation algorithm is developed for VWN with massive multiple input multiple output (MIMO) setup, where a base station (BS), equipped with large number of antennas, serves users belonging to different slices.The second part of the thesis focuses on more realistic design of VWNs. Specifically, the issues of random, bursty traffic arrival in users' queue, energy-efficiency and uncertain CSI at the BS, often experienced in practice, are addressed through resource provisioning policies. At first, to improve end-user service experience, cross-layer resource provisioning policies are presented. In this context, a dynamic resource provisioning policy, adaptable to both CSI and queue state information (QSI) of VWNs, is proposed to maintain the stable queue state of VWN. Afterwards, to minimize energy consumption, a resource provisioning policy is proposed to satisfy the maximum average packet transmission delay in VWNs to offer reliable end-users' experience. Finally, the issue of uncertain CSI at the BS due to estimation errors is addressed through an energy-efficient robust resource provisioning policy. The total energy consumption of VWN is easily controllable via the cost factors of slices in the proposed policy. Simulations are performed to deeply analyze the effects of system parameters on VWN's performance." --
Author: Chunxiao Jiang
Publisher: Springer Nature
ISBN: 981165221X
Category : Technology & Engineering
Languages : en
Pages : 395
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As an important future network architecture, virtual network architecture has received extensive attention. Virtual network embedding (VNE) is one of the core services of network virtualization (NV). It provides solutions for various network applications from the perspective of virtual network resource allocation. The Internet aims to provide global users with comprehensive coverage. The network function requests of hundreds of millions of end users have brought great pressure to the underlying network architecture. VNE algorithm can provide effective support for the reasonable and efficient allocation of network resources, so as to alleviate the pressure off the Internet. At present, a distinctive feature of the Internet environment is that the quality of service (QoS) requirements of users are differentiated. Different regions, different times, and different users have different network function requirements. Therefore, network resources need to be reasonably allocated according to users' QoS requirements to avoid the waste of network resources. In this book, based on the analysis of the principle of VNE algorithm, we provide a VNE scheme for users with differentiated QoS requirements. We summarize the common user requirements into four categories: security awareness, service awareness, energy awareness, and load balance, and then introduce the specific implementation methods of various differentiated QoS algorithms. This book provides a variety of VNE solutions, including VNE algorithms for single physical domain, VNE algorithms for across multiple physical domains, VNE algorithms based on heuristic method, and VNE algorithms based on machine learning method.
Author: Martin Schubert
Publisher: Now Publishers Inc
ISBN: 193301931X
Category : Technology & Engineering
Languages : en
Pages : 164
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Book Description
QoS-Based Resource Allocation and Transceiver Optimization derives a comprehensive theoretical framework for SIR balancing, with and without noise. The theory considers the possible use of receive strategies (e.g. interference filtering or channel assignment), which can be included in the model in an abstract way. Power allocation and receiver design are mutually interdependent, thus joint optimization strategies are derived. QoS-Based Resource Allocation and Transceiver Optimization provides a better understanding of interference balancing and the characterization of the QoS feasible region. It also provides a generic algorithmic framework, which may serve as a basis for the development of new resource allocation algorithms. QoS-Based Resource Allocation and Transceiver Optimization is an invaluable resource for every engineer and researcher working on multiuser interference problems in wireless communications.
Author: Amir Helmy
Publisher:
ISBN:
Category :
Languages : en
Pages :
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"This thesis studies and develops quality-of-service (QoS)-aware power allocation and frequency provisioning schemes for multicarrier wireless systems in a frequency-selective fading environment. We first develop an optimal subcarrier power allocation algorithm to maximize the energy efficiency (EE) of a single-user multicarrier link under delay-outage probability constraints, where EE is defined as the ratio of the achieved effective capacity (EC) to the total expenditure power. Specifically, we formulate the QoS-driven EE maximization problem and show that its objective function is quasi-concave in the transmission power, and as a result, derive the global optimum solution using fractional programming. The developed optimal power allocation maximizes the EE by adapting both the total transmit power and its allocated portion in each subcarrier according to the frequency-selective channel response and delay constraint.
Author: Hao Zhu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Calin Curescu
Publisher:
ISBN: 9789173736428
Category :
Languages : en
Pages : 97
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Book Description
Author: Lei Zhang
Publisher: MDPI
ISBN: 3039281488
Category : Technology & Engineering
Languages : en
Pages : 222
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Book Description
The Internet of Things (IoT) has attracted much attention from society, industry and academia as a promising technology that can enhance day to day activities, and the creation of new business models, products and services, and serve as a broad source of research topics and ideas. A future digital society is envisioned, composed of numerous wireless connected sensors and devices. Driven by huge demand, the massive IoT (mIoT) or massive machine type communication (mMTC) has been identified as one of the three main communication scenarios for 5G. In addition to connectivity, computing and storage and data management are also long-standing issues for low-cost devices and sensors. The book is a collection of outstanding technical research and industrial papers covering new research results, with a wide range of features within the 5G-and-beyond framework. It provides a range of discussions of the major research challenges and achievements within this topic.
Author: Heming Wen
Publisher: Springer Science & Business Media
ISBN: 3319012916
Category : Computers
Languages : en
Pages : 123
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Book Description
This SpringerBriefs is an overview of the emerging field of wireless access and mobile network virtualization. It provides a clear and relevant picture of the current virtualization trends in wireless technologies by summarizing and comparing different architectures, techniques and technologies applicable to a future virtualized wireless network infrastructure. The readers are exposed to a short walkthrough of the future Internet initiative and network virtualization technologies in order to understand the potential role of wireless virtualization in the broader context of next-generation ubiquitous networks. Three main wireless virtualization perspectives are explored, along with the potential challenges and requirements of a sustainable wireless virtualization framework. Finally, it presents an example of a multi-perspective wireless virtualization framework. The readers learn the latest concepts in the application of wireless virtualization as well as its relationship with cutting-edge wireless technologies such as software-defined radio (SDR) and cognitive radio.
Author: Xin-She Yang
Publisher: Morgan Kaufmann
ISBN: 0128017430
Category : Mathematics
Languages : en
Pages : 349
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Book Description
Bio-inspired computation, especially those based on swarm intelligence, has become increasingly popular in the last decade. Bio-Inspired Computation in Telecommunications reviews the latest developments in bio-inspired computation from both theory and application as they relate to telecommunications and image processing, providing a complete resource that analyzes and discusses the latest and future trends in research directions. Written by recognized experts, this is a must-have guide for researchers, telecommunication engineers, computer scientists and PhD students.
