QoS resource management for future broadband wireless access systems

诸如高速分组接入（HSPA）、UMTS长期演进（LTE）和全球微波接入互操作性（WiMAX）之类的未来宽带无线基于蜂窝的接入系统（BWCAS）为利用对广泛的“内容丰富的”移动的多媒体服务（例如，视频会议、音频和视频流、广播电视和在线游戏），具有不同的服务质量（QoS）要求。这是因为这些系统支持的带宽非常高，而以前只有有线连接才能使用。尽管支持这样的高带宽，满足不同的QoS的用户，同时最大限度地提高网络运营商的收入仍然是这些系统中的主要问题之一。如果没有有效的资源管理，网络运营商可能无法满足用户对多媒体服务日益增长的需求，因此他们可能会遭受巨大的收入损失。 本研究的目的是区分和设计有效的资源管理技术BWCAS网络。为此，我将考虑设计和开发有效的带宽管理框架，其目的是支持多种类别的流量与不同的用户有不同的QoS要求，支持类间和类内的公平性，防止网络拥塞和最大限度地提高网络运营商的收入。此外，我将提出保证端到端的QoS架构，并评估替代技术或方法的方法提供服务的QoS保证。我还将制定拥塞定价解决方案的BWCAS，其中包括定义和推导定价功能，考虑不同的无线服务的QoS，除了在网络中的当前负载。本项目的研究成果代表了实现“随时随地和任何形式”的通信概念的明确步骤。更重要的是，调查结果将有利于加拿大电信行业和企业以既节省时间又节省成本的方式规划、实施和部署BWCAS网络。

Future Broadband Wireless Cellular-based Access Systems (BWCASs) such as High Speed Packet Access (HSPA), UMTS Long Term Evolution (LTE) and the Worldwide Interoperability for Microwave Access (WiMAX), pose a myriad of new opportunities for leveraging the support of a wide range of "content rich" mobile multimedia services (e.g., video conferencing, audio and video streaming, broadcast TV and online gaming) with diverse Quality of Service (QoS) requirements. This is due to the remarkably high bandwidth that is supported by these systems, which was previously only available to wireline connections. Despite the support for such high bandwidth, satisfying the diverse QoS of users while maximizing the revenues of network operators is still one of the major issues in these systems. Without efficient resource management, network operators may not be able to meet the increasing demand of users for multimedia services, and hence they may suffer great revenue loss. The objective of this research is to distinguish and devise effective resource management techniques for BWCAS networks. To this end, I will consider designing and developing efficient bandwidth management frameworks, which aim at supporting multiple classes of traffic with different users having different QoS requirements, supporting inter- and intra-class fairness, preventing network congestion and maximizing the network operator's revenues. Moreover, I will propose architectures for guaranteeing end-to-end QoS, and evaluate alternative technological or methodological approaches for delivering services with QoS guarantees. I shall also devise congestion pricing solutions for BWCASs, which includes defining and deriving pricing functions that consider the QoS of different wireless services in addition to the current load in the network. The research findings of this project represent a definite step towards meeting the "anywhere, anytime and any form" communication concept. More importantly, the findings will benefit the Canadian telecommunications industry and business with means to plan, implement and deploy BWCAS networks in a manner that is both time- and cost-efficient.