Kousha Moaveninejad

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Topology control has been well studied in wireless ad hoc networks. However, only a few topology control methods take into account the low interference as a goal of the methods. Some researchers tried to reduce the interference by lowering node energy consumption (i.e. by reducing the transmission power) or by devising low degree topology controls, but none(More)
We consider a wireless ad hoc network composed of a set of wireless nodes distributed in a two dimensional plane. Several routing protocols based on the positions of the mobile hosts have been proposed in the literature. A typical assumption in these protocols is that all wireless nodes have uniform transmission regions modelled by unit disk centered at(More)
Opportunistic routing [1, 2] was shown to improve the network throughput greatly. The core idea is to allow any node in the <i>forwarder list</i>, which overhears the transmission and is closer to the destination to participate in forwarding the packet. The nodes in <i>forwarder list</i> are prioritized and the lower priority forwarder will discard the(More)
Many routing protocols have been proposed for wireless ad hoc networks, and most of them are based on some variants of flooding. Thus many routing messages are propagated through the network unnecessarily despite various optimizations. Gossip based routing method has been used and re-investigated to reduce the number of messages in both wired networks and(More)
Topology control has been well studied in wireless ad hoc networks. However, only a few topology control methods (e.g. [1]) take into account the low interference as a goal of the methods. Some researchers tried to indirectly reduce the interference by reducing the transmission power or by devising low degree topologies, but none of those protocols can(More)
In this paper, we study the two-tiered wireless sensor network (WSN) architecture and propose the optimal cluster association algorithm for it to maximize the overall network lifetime. A two-tiered WSN is formed by number of small sensor nodes (SNs), powerful application nodes (ANs), and base-stations (BSs, or gateways). SNs capture, encode, and transmit(More)
In this paper, we study the two-tiered wireless sensor network (WSN) architecture and propose the optimal cluster association algorithm for it to maximize the overall network lifetime. A two-tiered WSN is formed by number of small sensor nodes (SNs), powerful application nodes (ANs), and base-stations (BSs, or gateways). SNs capture, encode, and transmit(More)
Position based routing methods have been used successfully recently for homogeneous wireless networks when all nodes have the same transmission range, and the signal will be received by all nodes with the transmission range. All these protocols are likely to fail for heterogeneous wireless ad hoc networks, or the signal could be blocked by obstacles. We(More)
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