Research On Resource Allocation Of Ultra Wideband Systems

Ultra wideband technique, which has been sped up to develop in recent years, is defined by the Federal Communication Commission of the United States as a system of one having a -10 dB fractional bandwidth of at least 0.20 or a -10 dB bandwidth of at least 500 MHz. Ultra wideband wireless technique has prosperous developing foreground, and it will be an important built-up portion of future wireless networks.Game theory, served as a tool for analyzing and solving resource management, is widely used in many fields such as economic science, international politics, and automatic control. In the research of UWB network resource allocation, this research try to use some economical means for reference and bring out game theory and some marketing mechanism to manage the wireless resources, mainly focus on connection admission control, power control, bandwidth and rate control, etc.This dissertation analyses the resource allocation of UWB wireless communication systems, including connection admission control, power and rate control. Queueing theory, game theory and cross-layer design are used for resource allocation, and system model of UWB wireless communication systems is constructed. The ultimate goals are combinations of global optimization and local optimization for the resource allocation.One of distinct characteristics of next generation wireless system is its sustaining diversified multiuser services to cater for the QoS(Quality of Service) requirements of increasing broadband demands. The study analyzes the connection admission control of UWB systems, and queueing theory is used in channel connection admission control. The bandwidth is divided into control channel and data channel and data is allocated dynamically. Existent admission control algorithm is also improved. The key idea is that the power is firstly allocated to real-time users with different priorities, and then the system resources are allocated to maximize the utilization ratio. The resources such as power, rate and connection admission control are adaptively allocated, and a suboptimal scheduling scheme is proposed with vanishing losses to reduce the complexity of optimal one.According to different QoS requirements of different users, the study use cooperative game theory to handle bandwidth usage and gain global optimality of bandwidth and rate allocation according to the integration of different game algorithms and distributed algorithm. The whole channel is divided into control channel and data channel and transmit data dynamically. The study does researches in fairness for power control of resource management, according to stream types and delay and throughput requirements of users. The study does researches in bandwidth and rate control of resource management. Cooperative game theory is used for resource allocation. The study analyzes joint optimal resource management protocol and cross-layer joint resource scheduling through the characteristics of UWB physical layer. Our ultimate goal is achieving optimal resource allocation and QoS requirements of users.Finally, the whole dissertation and main innovations are concluded, and succedent work in future researches is also pointed out.The dissertation proposes a new multi-channel scheme and corresponding resource allocation to efficiently use the bandwidth. By the choice of signaling in the MAC(Medium Access Control), the research can provide a cooperative game theoretical approach, aiming to maximumly utilize the resources can be adopted. This research has stronger theoretical significance on wireless resource allocation, and it's a kind of practical powerful tools for optimal system resource management.