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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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Proceedings ArticleDOI
22 Apr 2003
TL;DR: This paper investigates the discrete probability distribution of the minimum number of wireless hops H between a random source and destination node and derives closed form expressions for the probability that two nodes can communicate within H = 1 hop or H = 2 hops.
Abstract: Given is the network-level view of a wireless multi-hop network with n uniformly distributed nodes, each of them with radio transmission range r/sub 0/, on a rectangular area. This paper investigates the discrete probability distribution of the minimum number of wireless hops H between a random source and destination node. This topology attribute has significant impact on the network performance, e.g., on route discovery delay and message delivery. We derive closed form expressions for the probability that two nodes can communicate within H = 1 hop (i.e., via a direct link) or H = 2 hops (i.e., over one relay node). Connection paths with H > 2 hops and the expected hop distance E{H} are studied by analytical bounds and extensive simulations.

105 citations

Journal ArticleDOI
01 Feb 2003
TL;DR: This paper presents a Geocast Adaptive Mesh Environment for Routing (GAMER) which provides geocast communication in an ad hoc network and concludes that both versions of GAMER improve the transmission accuracy significantly, without increasing the load on the network significantly, when compared to non-adaptive mesh-based geocasts routing approaches.
Abstract: This article concerns a variation on multicasting, called geocasting, for an ad hoc network. The goal of a geocast routing protocol is to deliver packets to a group of nodes that are within a specified geographical area, i.e., the geocast region. This paper presents a Geocast Adaptive Mesh Environment for Routing (GAMER) which provides geocast communication in an ad hoc network. GAMER adapts to the current network environment by dynamically changing the density of the mesh. Thus, when nodes are highly mobile, a dense mesh is created; when nodes are moving slowly, a sparse mesh is created. We compare the performance of GAMER with non-adaptive mesh-based geocast routing protocols in an ns-2 simulated ad hoc network. We also compare two versions of GAMER; one version is more active than the other in adapting to the current network environment. We conclude that both versions of GAMER improve the transmission accuracy significantly, without increasing the load on the network significantly, when compared to non-adaptive mesh-based geocast routing approaches.

105 citations

Patent
16 Jun 2005
TL;DR: In this paper, a method of selecting a restoration path in a mesh telecommunication network is disclosed that advantageously is practical and flexible and may be pre-computed along with a service connection path during the setup of the connection.
Abstract: A method of selecting a restoration path in a mesh telecommunication network is disclosed that advantageously is practical and flexible and may be pre-computed along with a service connection path during the setup of the connection. The information used to select the restoration path can be advantageously distributed among nodes in the network.

104 citations

Patent
28 Feb 2008
TL;DR: In this article, the authors describe a managed network that provides unique network addresses that are assigned to nodes such that no two nodes will have the same address in the managed network and such that each node will always have a same network address regardless of changing its location or changing the network to which it is joined.
Abstract: A managed network provides unique network addresses that are assigned to nodes such that no two nodes will have the same address in the managed network and such that each node will always have the same network address regardless of changing its location or changing the network to which it is joined. The nodes, communicating together, comprise a mesh network. Remote management and control of the nodes is possible from the host server, which is located outside of the mesh network, even if a node is located behind a firewall or network address translator (NAT), because server management messages are encapsulated within headers so that a persistent connection between the node and the external host server is maintained once the node sends a message to the host.

104 citations

Proceedings ArticleDOI
19 Jun 2006
TL;DR: This paper evaluates the feasibility of a mesh network for an all-wireless office using traces of office users and an actual 21-node multi-radio mesh testbed in an office area and concludes that for the traces and deployed system, under most conditions, all-Wireless office meshes are feasible.
Abstract: There is a fair amount of evidence that mesh (static multihop wireless) networks are gaining popularity, both in the academic literature and in the commercial space. Nonetheless, none of the prior work has evaluated the feasibility of applications on mesh through the use of deployed networks and real user traffic. The state of the art is the use of deployed testbeds with synthetic traces consisting of random traffic patterns.In this paper, we evaluate the feasibility of a mesh network for an all-wireless office using traces of office users and an actual 21-node multi-radio mesh testbed in an office area. Unlike previous mesh studies that have examined routing design in detail, we examine how different office mesh design choices impact the performance of user traffic. From our traces of 11 users spanning over a month, we identify 3 one hour trace periods with different characteristics and evaluate network performance for them. In addition, we consider different user-server placement, different wireless hardware, different wireless settings and different routing metrics.We find that our captured traffic is significantly different from the synthetic workloads typically used in the prior work. Our trace capture and replay methodology allows us to directly quantify the feasibility of office meshes by measuring the additional delay experienced by individual transactions made by user applications. Performance on our mesh network depends on the routing metric chosen, the user-server placement and the traffic load period. The choice of wireless hardware and wireless settings has a significant impact on performance under heavy load and challenging placement. Ultimately we conclude that for our traces and deployed system, under most conditions, all-wireless office meshes are feasible. In most cases, individual transactions incur under 20ms of additional delay over the mesh network. We believe this is an acceptable delay for most applications where a wired network to every machine is not readily available. We argue that our results are scalable to a network of over 100 users.

104 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202363
2022163
2021138
2020281
2019332
2018400