Interference Drop Scheme: Enhancing QoS Provision in Multi-Hop Ad Hoc Networks
Interference Drop Scheme: Enhancing QoS Provision in Multi-Hop Ad Hoc Networks
复制标题
干扰丢弃方案：增强多跳自组织网络中的 QoS 提供
DOI：
10.1587/transcom.e93.b.2088
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
T. Tsuboi
中科院分区：
文献类型：
--
作者：
Chang;N. Komuro;Kiyoshi Takahashi;H. Kasai;H. Ueda;T. Tsuboi
自组织网络使用无线技术来构建没有物理基础设施的网络，因此预计将在灾难恢复站点和车辆间通信等领域提供即时网络。与传统的有线网络服务不同，adhoc网络中的服务很容易被频繁的流量和拓扑变化所中断。因此，解决方案，以确保服务质量（QoS）在ad hoc网络是不同于传统的有线网络中使用的。在本文中，我们提出了一种新的队列管理方案，干扰丢弃方案（IDS）的ad hoc网络。在传统的队列管理方法中，如FIFO（先进先出）和RED（随机早期检测），队列通常由队列长度限制来管理。FIFO根据队列限制丢弃数据包，RED以早期和随机的方式丢弃数据包。另一方面，IDS根据无线干扰时间来管理队列，无线干扰时间随着MAC层中争用次数的增加而增加。当有许多MAC争用时，IDS丢弃TCP数据包。通过观察干扰时间和丢弃TCP数据包，我们的模拟结果表明，IDS提高了TCP的性能，并减少了QoS违规UDP在Ad Hoc网络与链，网格和随机拓扑结构。我们的仿真结果也表明，无线干扰时间是一个更好的度量比队列长度限制的队列管理在多跳ad hoc网络。
Ad hoc networking uses wireless technologies to construct networks with no physical infrastructure and so are expected to provide instant networking in areas such as disaster recovery sites and inter-vehicle communication. Unlike conventional wired networks services, services in ad hoc networks are easily disrupted by the frequent changes in traffic and topology. Therefore, solutions to assure the Quality of Services (QoS) in ad hoc networks are different from the conventional ones used in wired networks. In this paper, we propose a new queue management scheme, Interference Drop Scheme (IDS) for ad hoc networks. In the conventional queue management approaches such as FIFO (First-in First-out) and RED (Random Early Detection), a queue is usually managed by a queue length limit. FIFO discards packets according to the queue limit, and RED discards packets in an early and random fashion. IDS, on the other hand, manages the queue according to wireless interference time, which increases as the number of contentions in the MAC layer increases. When there are many MAC contentions, IDS discards TCP data packets. By observing the interference time and discarding TCP data packets, our simulation results show that IDS improves TCP performance and reduces QoS violations in UDP in ad hoc networks with chain, grid, and random topologies. Our simulation results also demonstrate that wireless interference time is a better metric than queue length limit for queue management in multi-hop ad hoc networks.
无线多跳网络中的网络问题
DOI：
--
发表时间：
2005
期刊：
Second International Workshop on UWB Radio Communications Proceedings
影响因子：
--
作者：
Tatsuya Kabasawa;Keisuke Nakano
通讯作者：
Keisuke Nakano