项目名称: 无线资源多域变换/逆变换及其在无线云中的应用
项目编号: No.61271235
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 无线电电子学、电信技术
项目作者: 潘甦
作者单位: 南京邮电大学
项目金额: 76万元
中文摘要: 研究将分布在不同系统中的异构无线资源进行融合管理,以满足无线云对通信的要求。目前无线资源融合管理以网络的剩余可用频谱带宽作为用户资源分配形式,然而多数无线网如:蜂窝网、WLAN、WPAN,其用户占用的无线资源都不是以一段段的带宽表达的,比如以扩频(WCDMA)或竞争(WLAN)的方式占有整个网络带宽,或占用二维时频块(LTE之OFDMA),因此难以直接用某段带宽的形式为无线云用户分配无线资源。从这个层面看,目前研究笼统地以带宽作为用户资源占用表达,过分屏蔽了物理层的资源特性而使得资源管理算法难以应用。本研究提出将分布在不同正交空间上的资源统一变换到频域空间,使不同的网络无线资源有统一调度、兑换和管理的基础,在此基础上设计各种"长期"收益最大化算法,为无线云用户分配资源。
中文关键词: 映射;等效带宽;资源分配;异构网络;无线云
英文摘要: This research focuses on the collaborative management of the heterogeneous radio resources distributed in different systems so that the telecommunication requirements of the wireless clouds can be met. The current radio resource collaborative management schems use the remaining spectral bandwidth in the networks as a formation of users' resource to be allocated. However,in most wireless networks such as Cellular networks,WLAN and WPAN networks,the radio recources occupied by the users are not presented directly by sections of spectal bandwidth. For example,the whole spectal bandwidth of the network is occupied by a user using Spread spectrum technology(CDMA networks) or competition technology(WLAN networks),and resources presented in the LTE system (using OFDMA tecnology) is the two dimensional time-frequency blocks. So it is difficult to allocate the sections of the spectal bandwidth directly to users in wireless-cloud. From this perspective, current researches use the spectal bandwidth roughly as the resources to be allocated to users, while ignoreing the characteristics of the resources in different physical layers and making those algorithms hard to be impletmented. This research propoed to transform the resources in different orthogonal space into frequency domain space,which makes the radio resource in d
英文关键词: mapping;equivalent bandwidth;resource allocation;heterogeneous network;wireless cloud