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Neighbor discovery is a crucial initial step to establish connections among the nodes in Ad hoc network. Multi-carrier modulation possesses superiority on parallel processing, which is widely used in neighbor discovery researches with directional antennas. However, when the node scale becomes larger, the existing algorithms of 1-way and 2-way handshake may increase the collision probability, leading...
In this paper we propose a novel reactive multi-path routing protocol for wireless (and vehicular) ad-hoc networks. The proposed scheme tries to establish and maintain local multiple paths to a certain destination, instead of finding multiple global paths between the source and destination nodes as most other multipath solutions do. To achieve this, we adopt and modify the well-known reactive routing...
In this paper we focus on the performance improvement of reactive routing protocol of wireless ad-hoc networks by considering traffic load and geographical information of the network that are involved in routing procedure. A mobile node that already has or potentially will have excessive routing duty should act as a relaying node with relatively low probability. We use three parameters that are available...
In this paper a global synchronization scheme is proposed for large-scale two-layer clustered wireless ad hoc/sensor networks. The scheme shows a very high efficiency to synchronize the cluster heads throughout the whole network because collision of synchronization packets is avoided
In this paper we propose a link-state clustering algorithm for both homogeneous and heterogeneous large scale wireless ad-hoc/sensor networks. The algorithm is based on IEEE 802.15.4 MAC layer protocol in which the link state of the radio channel can be monitored and traced. The algorithm forms a wireless ad-hoc/sensor network into two layers and routing problem only occurs amongst cluster heads,...
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