| UWB Ad Hoc网络无线接入特性与定位辅助路由分析 |
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| 引用本文： | 刘珩,安建平. UWB Ad Hoc网络无线接入特性与定位辅助路由分析[J]. 南京邮电大学学报(自然科学版), 2006, 26(2): 63-67 |
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| 作者姓名： | 刘珩 安建平 |
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| 作者单位： | 北京理工大学,信息科学技术学院电子工程系,北京,100081;北京理工大学,信息科学技术学院电子工程系,北京,100081 |
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| 摘 要： | 考察基于UWB技术的Ad Hoc网络组网的关键问题。根据UWB信号特征分析了信道客量,说明在大带宽、有限功率的通信模型下UWB Ad Hoc网络的节点吞吐量。从网内冲突和网间干扰方面讨论无线接入面临的问题和解决途径,包括解决网内冲突的主从轮询机制、CSMA竞争机制和应对于网间干扰的扩频技术。举例分析了UWB Ad Hoc网络MAC协议的特性,说明将Ad hoc MAC与动态信道编码结合,并采用跳时的方式解决网间干扰的是一种有效的方法。在分析UWB和GPS定位信息不同点的基础上进一步研究了基于TOA的定位算法和定位辅助路由IAR协议的原理,提出两者结合的UWB Ad Hoc网络定位辅助路由。
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| 关 键 词： | 超宽带 移动自组网 MAC 定位辅助路由 |
| 文章编号： | 1673-5439(2006)02-0063-04 |
| 修稿时间： | 2005-11-10 |
Analysis of Wireless Medium Access and Location Aided Routing for Ultra Wideband Ad hoc Network |
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| LIU Heng,AN Jian-ping. Analysis of Wireless Medium Access and Location Aided Routing for Ultra Wideband Ad hoc Network[J]. JJournal of Nanjing University of Posts and Telecommunications, 2006, 26(2): 63-67 |
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| Authors: | LIU Heng AN Jian-ping |
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| Abstract: | UWB Ad Hoc network was concerned in this research.Channel capacity was analyzed according to UWB signal characters.Node throughput was explained under the wideband and finite power model in UWB Ad Hoc network.Problems of wireless access were classified into intra network interference and inter network interference.polling scheme and CSMA were used to solve the intra network interference,and SS(spread spectrum) was proposed to solve the inter network interference.Some MAC protocols used in UWB Ad Hoc network were compared. An idea of combining dynamic channel coding with MAC protocol and using time-hopping was analyzed.At last a routing policy combining the locating algorithms based on TOA and LAR protocol was introduced. |
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| Keywords: | MAC |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
