A QoS-Aware Joint Power and Subchannel Allocation Algorithm for Mobile Network Virtualization

Abstract

Doctor of PhilosophyQoS-aware Joint Power and Subchannel Allocation Algorithms for Wireless Network Virtualization by Junyi WEI Wireless network virtualization (WNV) is a promising technology which aims to overcome the network redundancy problems of the current Internet. WNV involves abstraction and sharing of resources among different parties. It has been considered as a long term solution for the future Internet due to its flexibility and feasibility. WNV separates the traditional Internet service provider's role into the infrastructure provider (InP) and service provider (SP). The InP owns all physical resources while SPs borrow such resources to create their own virtual networks in order to provide services to end users. Because the radio resources is finite, it is sensible to introduce WNV to improve resources efficiency. This thesis proposes three resource allocation algorithms on an orthogonal frequency division multiple access (OFDMA)-based WNV transmission system aiming to improve resources utility. The subject of the first algorithm is to maximize the InP and virtual network operators' (VNOs') total throughput by means of subchannel allocation. The second one is a power allocation algorithm which aims to improve VNO's energy efficiency. In addition, this algorithm also balances the competition across VNOs. Finally, a joint power and subchannel allocation algorithm is proposed. This algorithm tries to find out the overall transmission rate. Moreover, all the above alogorithms consider the InP's quality of service (QoS) requirement in terms of data rate. The evaluation results indicates that the joint resource allocation algorithm has a better performance than others. Furthermore, the results also can be a guideline for WNV performance guarantees.I have imaged thousand times about writing the thesis. There are a number of people without whom this thesis might not have been written, and to whom I am greatly indebted. Thanks all of them to be in my life and thanks for their helps, encouraging and support.I would offer my most sincerest gratitude to my supervisor Prof. Kun Yang whose patience and kindness has been priceless to me. Your professional knowledge and experienced academic guidance helped my research at all the time. I could not image to have better advisor and mentors for my study. I would also appreciate Dr. Guopeng Zhang, Mr. Terry Quinlan, my board meeting member Dr. Martin Reed and board chair Prof. Dongbing Gu. Your reviews and feedback helped me to complete this thesis. I am also greatly indebted to my father, Li Wei, who has been a source of encouragement and inspiration to my study. You have supported me in my determinations and encourage me to carry forward. Unfortunately, I lost my father on the second year of my Ph.D study. As long as I finish the study, hope you rest in the heaven. To my mother, Yulan Cao, who loves me and always stand by my side. Your guidance of writing papers helped me a lot. I would also thank my cousin Xian Li and her husband Zhenyu Tang, you gave me plenty of att...

On the evolution of infrastructure sharing in mobile networks: A survey

“…Instead, Wei et al in [147] take a centralized approach. Specifically, the work in [147] considers multiple InPs and multiple VNOs (analogous to SPs) in the context of WNV. Here, each InP has a given set of users of its own; resources allocated to its own users are referred to as local slices and the total rate across the local slices should be above a given minimum for each InP.…”

“…Actors Approach [30] many InPs -one SP contract theory [147] many InPs -many SPs IP model [156] many InPs -many SPs auction theory [28] many InPs -many SPs MLFG…”

Sharing and Cooperation of Improved Cross-Entropy Optimization Algorithm in Telemedicine Multimedia Information Processing

“…The basic function of the system includes a unified code maintenance mechanism to adapt to the current situation that the relevant standards are incomplete and the application is ahead of the standard. When necessary, a number of professional standards are formed on the basis of project construction [11].…”

Wireless Network Virtualization Resource Sharing considering Dynamic Resource Allocation Algorithm

“…By analyzing the current research models, methods and technologies of virtual network embedding into physical networks, and drawing future research trends, it is found that the main difference between VNE and previous Internet models is that it is mainly to simplify the embedding problem on large networks. e infrastructure sharing mechanism must contain a module that maps the virtual nodes and links of the virtual network to the computing modules and transmission paths in the physical network, respectively, which is usually called virtual network embedding, and can also be called mapping [18] or configuration [19].…”