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•
13 Mar 2006TL;DR: The Neighbor Location Discovery Protocol (NLDP) as mentioned in this paper is a neighbor location discovery protocol that determines the relative locations of the nodes in a mesh network by exploiting the host node's ability to operate simultaneously over nonoverlapping channels to quickly converge on the neighbor's location.
Abstract: Disclosed is a Neighbor Location Discovery Protocol (NLDP) that determines the relative locations of the nodes in a mesh network. In one embodiment, NLDP can be implemented for an ad-hoc wireless network where the nodes are equipped with directional antennas and are not able to use GPS. While NLDP relies on nodes having at least two RF transceivers, it offers significant advantages over previously proposed protocols that employ only one RF transceiver. In NLDP antenna hardware is simple, easy to implement, and readily available. Further, NLDP exploits the host node's ability to operate simultaneously over non-overlapping channels to quickly converge on the neighbor's location. NLDP is limited by the range of the control channel, which operates in a omni-directional fashion. However, by choosing a low frequency band, high power, and low data rate, the range of the control channel can be increased to match the range on the data channel.
46 citations
Patent•
23 May 2007TL;DR: In this article, the authors present a method for displaying a geographical map illustrating the locations of a plurality of wireless nodes of a mesh network, displaying a hierarchically arranged filter that shows a hierarchical relation of the plurality of nodes; receive a filter configuration; and displaying in the geographical map a subset of the wireless nodes based on the filter configuration.
Abstract: In one embodiment, a method Includes displaying a geographical map illustrating- locations of a plurality of wireless nodes of a mesh network; displaying a hierarchically- arranged filter that shows a hierarchical relation of the plurality of wireless nodes; receive a filter configuration; and displaying in the geographical map a subset of the plurality of wireless nodes based on the filter configuration.
46 citations
01 Jan 2006
TL;DR: A solution to mitigate the exposed terminal problem in static IEEE 802.11-based mesh networks, thereby improving the spatial reuse of the medium and increasing network throughput and capacity usage in representative topologies and traffic scenarios is proposed.
Abstract: Efficient usage of available capacity in wireless mesh networks is critical. Capacity is wasted due to the exposed terminal problem. In this paper, we propose a solution to mitigate the exposed terminal problem in static IEEE 802.11-based mesh networks, thereby improving the spatial reuse of the medium and increasing network throughput. Our solution is complementary to previously-proposed solutions that adjust the carrier-sense range for improved spatial reuse. The proposed solution consists of two phases. In the first phase, exposed links in the mesh topology are detected through an offline training process. Coordination of simultaneous transmissions over exposed links is then done in the second phase through the use of request-to-send- simultaneously (RTSS) and clear-to-send-simultaneously (CTSS) messages, which are added to the MAC protocol. Our solution preserves the distributed nature of the MAC protocol and does not require time synchronization between nodes. We present a simulation-based evaluation that demonstrates that the proposed solution effectively improves capacity usage and network throughput in representative topologies and traffic scenarios.
46 citations
Patent•
19 Jan 2001
TL;DR: In this paper, an antenna assembly forming a portion of a communication station, such as a node of a wireless mesh network, is determined and stored at a routing table of the node, which is combined with an IP address or other identifier of another node to which a data packet is to be communicated.
Abstract: Apparatus, and associated method, for facilitating use of an antenna assembly forming a portion of a communication station, such as a node of a wireless mesh network. Antenna information is determined and stored at a routing table of the node. The antenna information is combined with an IP address or other identifier of another node to which a data packet is to be communicated. The antenna information is utilized to define characteristics to be exhibited by the antenna assembly to best facilitate communication of the data packet between the nodes.
46 citations
19 May 2008
TL;DR: This work designs a capacity and delay aware routing scheme, CaDAR, to minimize the delay and increase network support in the WMN of a WOBAN that can support much higher load and has lower system delay than other approaches because of better load balanced routing.
Abstract: Hybrid wireless-optical broadband access network (WOBAN) is a combination of wireless and optical networks to optimize the cost and performance of an access network. Wireless nodes collect traffic from end users and carry them to the optical part of a WOBAN using multiple hops, accumulating delay at each wireless node. Moreover, the radio capacity on each wireless link limits the capacity on each outgoing link from the node in a single-radio wireless mesh network (WMN) of a WOBAN. Thus, delay and capacity limitation in the WMN of a WOBAN is a major bottleneck. We design a capacity and delay aware routing scheme, CaDAR, to minimize the delay and increase network support in the WMN of a WOBAN. Our analysis shows that CaDAR is an efficient routing scheme for a single-radio WMN for a WOBAN that can support much higher load and has lower system delay than other approaches because of better load balanced routing.
46 citations