Abstract
High-speed mobility and heavy-load traffic in mobile Ad hoc networks (MANET) may result in frequent topology changes and packet loss. To guarantee packet delivery, a novel stable backup routing (SBR) scheme is put forward in this paper, which consists of the establishment of backup routes and route maintenance. In SBR, backup routes are set up by overhearing MAC signals, and the bit error rate is considered in path selection for improving stability. To repair broken links effectively and reasonably, qualified backup routes are classified into three categories with different priorities, based on which the relevant nodes decide how to reconstruct the forwarding path. Extensive simulations demonstrate that our proposed method outperforms other comparable backup routing mechanisms in terms of packet delivery ratio, average delay and control overhead.
Highlights
A Mobile Ad Hoc Network (MANET) is formed by a collection of wireless mobile nodes without centralized administration [1]
Most of the existing classical routing algorithms in Ad hoc networks are implemented based on smallest hop counts, such as the Ad hoc On-demand Distance Vector (AODV) protocol [2] and Dynamic MANET On-Demand (DYMO) routing [3]
After receiving backup route request (BRREQ), each neighbor looks for available paths in its own backup route table by matching destinations and inefficient node included in BRREQ
Summary
A Mobile Ad Hoc Network (MANET) is formed by a collection of wireless mobile nodes without centralized administration [1]. This paper focuses on improving is worth noting that the exciting research results above focused on the details of routing the algorithm network performance from another perspective, that is to use alternate paths to enhance stability, itself, including routing selection and route maintenance. It has better overhearing that utilizes signals to set up backup routes may not adaptability to theall mobility of nodes It shouldNevertheless, be further noted thatbetter snooping of MAC to headers does not always discover the existing candidates. We classifylink the qualified routes categories with have other protocols, stability isbackup considered ininto our three scheme, which depends on different priorities based on hop counts According to both the priority and link stability, nodes choose the bit error rate.
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