Multimedia Wireless Communication Networks

无线通信已经彻底改变了我们的通信、信息检索和分发、娱乐和社会互动的方式。目前，全球移动电话用户超过50亿，行业收入在1万亿美元左右。虽然目前对无线服务的需求中有很大一部分仍以语音为中心，但未来几年流量的快速增长将受到移动数据和多媒体应用的推动，例如移动网络浏览、电影流媒体、多玩家在线电子游戏、社交媒体、实时情景感知服务和远程医疗。以可靠和资源高效的方式支持如此广泛的多媒体业务和应用的网络的设计和运行是一个巨大的挑战。在未来，无线蜂窝通信网络将需要支持更高的用户数据速率，并以可承受的价格提供高质量的用户体验。这项研究计划将探索创新的方法、模式和技术，以使这一必要性成为可能。它将集中在三个关键领域：(1)无线资源调度，旨在以有效的方式将稀缺的时间和频率资源分配给用户。(2)小区间干扰协调(ICIC)，指的是减少小区间干扰的有害影响的手段，小区间干扰的问题会严重影响小区边缘附近的用户，以及(3)协作中继，这是一种提高覆盖、系统容量和手机电池寿命的经济高效的技术。该研究项目的结果可能会对设备制造商、服务提供商和移动用户产生重大的积极影响。

Wireless communication has revolutionized our modes of communications, information retrieval and distribution, entertainment and social interaction. The number of cellular telephone subscribers worldwide currently exceeds five billion and industry revenues are in the one trillion dollars range. While a significant fraction of the current demand for wireless services remains voice-centric, rapid traffic growth in the coming years will be driven by mobile data and multimedia applications such as mobile web-browsing, movie streaming, multi-player online e-games, social media, real-time context-aware services and telemedicine. The design and operation of networks to support such a wide range of multimedia traffic and applications, each with its own Quality of Service (QoS) requirements, in a reliable and resource-efficient manner, present a daunting challenge.In the future, wireless cellular communication networks will need to support much higher user data rates and provide a high-quality user experience at an affordable price. This research program will investigate innovative approaches, models and techniques to make feasible this necessity. It will focus on three key areas: (1) Radio resource scheduling which aims to allocate scarce time and frequency resources to users in an efficient way. (2) Intercell interference coordination (ICIC) which refers to means for reducing the deleterious effects of intercell interference, a problem which can severely affect users near the cell edges and (3) Cooperative relaying which is a cost-effective technique for improving coverage, system capacity and handset battery lifetime. Results from the research program can potentially have a major positive impact on equipment manufacturers, service providers and cellular subscribers.