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基于白频谱的数字电视上行网络可行性研究
  • ISSN号：1002-8692
  • 期刊名称：《电视技术》
  • 时间：0
  • 分类：TN914.34[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构：[1]上海交通大学无线通信技术研究所,上海200240, [2]上海交通大学图像通信与网络工程研究所,上海200240
  • 相关基金：国家自然科学基金项目（61221001;61301117;61420106008};上海市数字媒体处理与传输重点实验室基金项目（12DZ2272600）
作者： 李青[1], 丁良辉[2], 杨峰[1], 钱良[1], 何大治[2], 管云峰[1], 张文军[2]
关键词： 广播上行, 白频谱, 频谱规划, return channel for broadcast, white space, spectrum allocation
中文摘要：

未来广播电视的趋势之一在于为电视用户提供交互性服务，而实现地面数字电视交互服务需要占用新的频谱资源建立专用上行网络。面对日益激烈的频谱之争，利用下行广播网络所存在的白频谱设计地面数字电视上行系统，可以实现广播电视频谱更充分的利用和更好的管理。通过计算链路衰落情况分析了上行网络的链路预算和发射功率需求，提出了一种可行的广播上行网络架构。然后结合UGC着色算法，对上行系统小区频谱进行规划，并根据划分的结果分析上行网络对下行广播的同频干扰、上行同频小区之间的互干扰和上行网络可以达到的容量。最后，以上海地区的实际白频谱分布情况为例。验证了基于白频谱的地面数字电视专用上行网络的方案可行性，为地面数字电视上行网络的设计和数字电视白频谱的使用提供参考。

英文摘要：

One of the most attracting features of next generation broadcasting system is the interactive services. To realize these in- teractive services, a dedicated return channel with extra spectrum resource is required. Because of the shortage of spectrum and ex- istence of TV white space, it is possible to use TV white space for dedicated return channel. Based on current TV broadcast spoc- trnm allocation strategy, the link budget is calculated and a novel network structure is proposed. With given white space distribu- tion, the graph coloring algorithm is used to reallocate the spectrum resource, and analyze the interference between uplink and downlink channels, the interference between uplink channels and the network throughput of uplink cells. Furthermore, taking Shanghai region as an example, the white space distribution is analyzed and the feasibility of the network structure is examined u- sing TV white space.

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期刊信息
  • 《电视技术》
  • 北大核心期刊（2011版）
  • 主管单位:中国电子科技集团公司
  • 主办单位:电视电声研究所
  • 主编：许盈（执行主编）
  • 地址：北京市朝阳区酒仙桥北路乙7号
  • 邮编：100015
  • 邮箱：tvea@263.net.cn; dsss@chinajournal.net.cn
  • 电话：010-59570246
  • 国际标准刊号：ISSN：1002-8692
  • 国内统一刊号：ISSN：11-2123/TN
  • 邮发代号:2-354
  • 获奖情况:
  • 第三届国家期刊奖百种重点期刊、中国期刊方阵双百...
  • 国内外数据库收录:
  • 美国剑桥科学文摘,英国科学文摘数据库,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:12712