Adapting applications' data rates in multi-hop wireless ad-hoc networks is inherently challenging. Packet collision, channel contention, and queue buildup contribute to packet loss but are difficult to manage in conventional TCP/IP architecture. This work explores a data-centric approach based on Name Data Networking (NDN) architecture, which is considered more suitable for wireless ad-hoc networks. We show that the default NDN transport offers better performance in linear topologies but struggles in more extensive networks due to high collision and contention caused by excessive Interests from out-of-order data retrieval and redundant data transmission from improper Interest lifetime setting as well as in-network caching. To fix these, we use round-trip hop count to limit Interest rate and Dynamic Interest Lifetime to minimize the negative effect of improper Interest lifetime. Finally, we analyze the effect of in-network caching on transport performance and which scenarios may benefit or suffer from it.
翻译:调适多跳型无线临时热点网络中的应用数据率具有内在挑战性。 包装相撞、 频道争斗和队列积累会增加包装损失, 但在传统的 TCP/ IP 架构中难以管理。 这项工作探索了基于名称数据网络( NDN) 架构的数据中心方法, 认为该架构更适合无线临时热点网络 。 我们显示, 默认的NDN 运输在线性地形方面表现更好, 但是由于异常数据检索和不适当的利息使用寿命设置以及网络内缓存产生的过多利益引起的过多利益引起的激烈碰撞和争议, 而在更广泛的网络中挣扎。 为了解决这个问题, 我们使用双轨跳计算来限制利率和动态利益寿命, 以尽量减少不当利息使用寿命的消极影响。 最后, 我们分析了网络内积存对运输绩效的影响, 以及哪些情景可能从中获益或受损。