摘要
无线Mesh网络(WMN)融合了WLAN和Ad hoc网络的优势,具有高速、多跳和自组织的特点,广泛用于会场、医院和车站等场合.由于其开放性和无线链路,导致路由协议效率不高.针对Ad hoc单跳路由的缺陷,从WMN的体系结构入手,提出了设计原则和方法,并在AODV的基础上,通过修改数据包的格式,优化设计了相应的网络协议,并给出了相应的路由算法,然后选择时延和负载两个核心指标,在OPNET平台上进行了仿真实现,结果表明,15个节点组成的WMN和4个节点的网络相比,其关键指标值优势明显,说明这种算法更加适合于规模较大的网络.
Combining the merits of WLAN and the Ad hoe network, Wireless Mesh Network（WMN） has the characteristics of high speed, multi-hop, self-organization, and can be widely used in the venue, hospital, station, etc. However, the routing protocol is low efficiency due to its openness and wireless link. Aiming at overcoming defects of the single hop routing of Ad hoc, this paper puts forward the design principles and basic methods, which starts from the architecture of WMN. On the basis of AODV, optimization design of the network protocol and the corresponding algorithm are presented by modifying the packet format. Finally, the protocols are simulated on the OPNET platform using two key indexes of delay and load. The results show that the MWN with 15 nodes is superior comparing with 4 modes. Therefore, the algorithm is more suitable for larger networks.
出处
《晓庄学院自然科学学报》
CAS
北大核心
2015年第3期85-90,共6页
Journal of Natural Science of Hunan Normal University
基金
湖南省科技计划资助项目(2014GK3032)
湖南省教育厅科研资助项目(13C1050)
