Topic
Wireless mesh network
About: Wireless mesh network is a research topic. Over the lifetime, 13600 publications have been published within this topic receiving 221035 citations. The topic is also known as: WMN.
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Patent•
09 Sep 2005
TL;DR: In this article, a system for an access node coupled to a computer to wirelessly communicate with a plurality of disparately located radio nodes each coupled with a meter or other sensor is provided.
Abstract: A system for an access node coupled to a computer to wirelessly communicate with a plurality of disparately located radio nodes each coupled to a meter or other sensor is provided. The radio nodes within the communication range of the access node orient onto a first logical layer to directly communicate with the access node. Additional radio nodes beyond the communication range of the access node indirectly communicate with the access node by detecting communications from radio nodes on lower logical layers that are closer to the access node and selecting a radio node of the detected radio nodes to be a repeater node. The selected repeater node has available memory capacity and a suitable power number to qualify as a repeater, which may periodically change. Sensed data is directly or indirectly communicated to the access node for further communication to a backend system computer.
80 citations
01 Apr 2009
TL;DR: A CA algorithm named Minimum interference Multi-channel Multi-radio Multicast (M4) is proposed that minimizes interference among nodes in a multicast routing tree and uses both orthogonal and overlapping channels such as those in IEEE 802.11b-g systems.
Abstract: One of the most effective approaches to enhance the throughput capacity of wireless mesh networks (WMN) is to use systems with multiple channels and multiple radios per node. Multi-channel multi-radio (MCMR) networks require efficient channel assignment (CA) algorithms to determine which channel a link should use for data transmission in order to maximize network throughput. The problem of CA has been studied extensively for unicast communications, but addressed only recently for multicast. We propose a CA algorithm named Minimum interference Multi-channel Multi-radio Multicast (M4) that minimizes interference among nodes in a multicast routing tree and uses both orthogonal and overlapping channels such as those in IEEE 802.11b-g systems. Simulation results show that M4 outperforms the Multi Channel Multicast algorithm proposed. in various scenarios with respect to average packet delivery ratio, throughput and end-to-end delay. Copyright © 2008 John Wiley & Sons, Ltd.
80 citations
TL;DR: This paper presents methodologies for deriving reliability performance of wireless communication networks to support demand response (DR) control, and the impact of communication impairments on a direct DR control program is investigated.
Abstract: This paper presents methodologies for deriving reliability performance of wireless communication networks to support demand response (DR) control. First, the impact of communication impairments on a direct DR control program is investigated. Second, the outage probability of a wireless link is modelled and quantified, considering the multipath fading, shadowing, and random path loss given the location distribution of smart meters. Third, the distributions of packet delivery ratio are derived for two wireless network architectures: the single-hop infrastructure-based network and the multi-hop mesh network. Simulation results verify the above reliability models and provide important insights on the coverage of wireless communication networks considering the reliability requirements of DR programs.
80 citations
Patent•
11 Jan 2007
TL;DR: In this article, a visual network map is generated using performance statistics based on the data gathered from the nodes of the wireless mesh network, which allows a user to determine the routes that messages take through the WSN, diagnose potential problems, and make adjustments to improve network performance.
Abstract: A control system uses a wireless mesh network to provide communication between a host computer and field devices. Performance of the wireless mesh network is monitored by collecting network performance data from each node, such as the nodes with which it is communicating, received signal strengths over links to different nodes, the number of errors occurring on each link, and how frequently communication is occurring with each of the other nodes. A visual network map is generated using performance statistics based on the data gathered from the nodes of the wireless mesh network. The visual network map allows a user to determine the routes that messages take through the wireless mesh network, diagnose potential problems, and make adjustments to improve network performance.
79 citations
Patent•
10 Nov 2008
TL;DR: In this paper, a mesh-networked sensor platform has a mesh network of nodes that connect with existing electrical infrastructure or are powered through other means such as batteries or energy scavenging.
Abstract: A mesh-networked sensor platform has a mesh network of nodes that connect with existing electrical infrastructure or are powered through other means such as batteries or energy scavenging. The mesh network forms a self-healing and self-configuring network robust against individual node failures. Wireless mesh networking integrated circuits (ICs), energy monitoring ICs and solid state relays are used to create a low-cost, easy-to-install energy visualization and management system. The system can intelligently control energy usage at the sockets to stop energy from being wasted. Software for a central base station uses energy usage data from each node to create an energy usage profile to automatically detect anomalies in energy usage and take steps to correct them. Other sensors can be easily added for a multitude of applications. Power usage and control of each appliance can be viewed via an internet connected PC or smart phone via a social networking website.
79 citations