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、娱乐和社会互动的模式。全球蜂窝电话用户的数量目前超过50亿，行业收入在1万亿美元的范围内。虽然目前对无线服务的需求中有很大一部分仍然以语音为中心，但未来几年的快速流量增长将由移动的数据和多媒体应用驱动，如移动的网页浏览、电影流、多人在线电子游戏、社交媒体、实时上下文感知服务和远程医疗。网络的设计和操作以可靠和资源有效的方式支持如此广泛的多媒体业务和应用，每个业务和应用都具有其自身的服务质量（QoS）要求，这提出了一个令人生畏的挑战。该研究计划将研究创新的方法，模型和技术，使这一必要性可行。它将集中在三个关键领域：（1）无线电资源调度，旨在以有效的方式向用户分配稀缺的时间和频率资源。(2)小区间干扰协调（ICIC）是指减少小区间干扰有害影响的方法，小区间干扰的问题可能会严重影响小区边缘附近的用户;（3）协作中继，这是一种提高覆盖范围、系统容量和成本效益的技术手机电池寿命。研究项目的结果可能会对设备制造商、服务提供商和蜂窝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.