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Energy consumption and the overhead of rerouting frequency are important concern in the routing algorithm design for Wireless Sensor Networks(WSN) with the Mobile Sink, this paper proposes a data aggregation algorithm based on grid and adaptive genetic algorithm for WSN with a mobile sink.AGA is applied to find out the optimal route of MA aggregating data, the entire area of a WSN is evenly partitioned...
We study a mobile wireless network where groups or clusters of nodes are intermittently connected via mobile "carriers'' (the carriers provide connectivity over time among different clusters of nodes). Over such networks (an instantiation of a delay tolerant network), it is well-known that traditional routing algorithms perform very poorly. In this paper, we propose a two-level Back- Pressure...
The challenging problem in geocasting is distributing the packets to all the nodes within the geocast region with high probability. Sending packets to a node in the geocast region cannot guarantee delivery to all nodes in the region. It is because there may be some islands in which nodes are not connected each other within the region while they may reach through outside the region. Some geocast algorithms...
Several gateway selection schemes have been proposed that select gateway nodes based on single QoS metric, for instance link availability, link capacity etc. or multiple non-QoS metrics, such as the combination of gateway node speed, residual energy, and number of hops, for mobile ad hoc networks (MANETs). Each scheme just focuses to improve only single network performance such as network throughput,...
The integration cellular networks, wireless local area networks (WLANs), and the new paradigm of mobile ad hoc networks (MANETs) is the trend for next generation mobile networks. And the multi-hop routing mechanism is an open and challenge issue in this area. In this paper, a multi-hop routing mechanism with fuzzy estimation of links for heterogeneous wireless networks (HWNs) is proposed. The mechanism...
In public safety and disaster recovery (PSDR) scenarios, reliable communication is an imperative. Unfortunately, communication infrastructure is often destroyed or overwhelmed by whatever precipitated the scenario (e.g., a hurricane or terrorist attack). Thus, the PSDR workers must often deploy their own communications infrastructure on-site. Wireless mesh networks (WMN) have been identified as being...
Nowadays, there is an important effort in the research community to connect mobile devices in ad hoc networks with the Internet. In order to allow the connectivity to the Internet, a gateway that supports the wired single-hop and wireless multi-hop approaches is necessary. The wireless node, as laptops or personal digital assistants, must select the best gateway from the information that these elements...
Routing of data in a vehicular ad hoc network is a challenging task due to the high dynamics of such a network Recently, it was shown for the case of highway traffic that position-based routing approaches can very well deal with the high mobility of network nodes. In this paper we analyze a position-based routing approach that makes use of the geographic positioning system (GPS) and direction of vehicles...
Wireless mesh network (WMN) has become a popular access network architecture. But because of its multi-hop nature, co-channel interference and contention, the attainable capacity of a wireless node in a WMN is significantly less than the radio capacity. We propose a overlay architecture for a WMN, where a wireless-ring (WRing) is deployed over the regular mesh for carrying wireless mesh traffic only...
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