Building blocks for mobile free-space-optical networks

Akella, Jayasri; Liu, Chang; Partyka, D.; Yüksel, Murat; Kalyanaraman, S.; Dutta, P.S.

doi:10.1109/wocn.2005.1436011

Cited by 38 publications

(19 citation statements)

References 13 publications

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“…Many other design choices are also available and can be found from [17][18][19][20]. The omni-directionality assumption for the FSO receiver is also reasonable, as omni-directional FSO receivers are also implemented in [5].…”

Section: Fso Communication Modelmentioning

confidence: 99%

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Throughput and delay analysis for hybrid radio-frequency and free-space-optical (RF/FSO) networks

Wang

Abouzeid

2011

Wireless Netw

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In this paper the per-node throughput and endto-end delay of randomly deployed (i.e. ad-hoc) hybrid radio frequency -free space optics (RF/FSO) networks are studied. The hybrid RF/FSO network consists of an RF ad hoc network of n nodes, f(n) of them, termed 'super nodes', are equipped with an additional FSO transceiver with transmission range s(n). Every RF and FSO transceiver is able to transmit at a maximum data rate of W 1 and W 2 bits/sec, respectively. An upper bound on the per node throughput capacity is derived. In order to prove that this upper bound is achievable, a hybrid routing scheme is designed whereby the data traffic is divided into two classes and assigned different forwarding strategies. The capacity improvement with the support of FSO nodes is evaluated and compared against the corresponding results for pure RF wireless networks. Under optimal throughput scaling, the scaling of average end-to-end delay is derived. A significant gain in throughput capacity and a notable reduction in delay will be achieved if. Furthermore, it is found that for fixed W 1 , f(n) and n where f(n) \ n, there is no capacity incentive to increase the FSO data rate beyond a critical value. In addition, both throughput and delay can achieve linear scaling by properly adjusting the FSO transmission range and the number of FSO nodes.

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Section: Fso Communication Modelmentioning

confidence: 99%

“…Several practical designs of such hybrid networks have been proposed and/or implemented e.g. [3][4][5][6][7], which may improve the network performance by providing higher throughput and/or better reliability. However, there is still no theoretical work that gives fundamental results on how much the performance can be improved and how.…”

Section: Introductionmentioning

confidence: 99%

Throughput and delay analysis for hybrid radio-frequency and free-space-optical (RF/FSO) networks

Wang

Abouzeid

2011

Wireless Netw

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“…Taking into account some previous works (Akella et al, 2005), in this paragraph some considerations regarding the design and implementation of a circular transceiver are reported with a preliminary implementation description. In particular the collocation of components (LED or photodiodes) on a 2D structure is considered.…”

Section: Design Consideration and Implementation Of Planar Optical CImentioning

confidence: 99%

“…The problem of wireless underwater communication is a challenging field of investigation since common terrestrial devices, equipped with radio wireless links, cannot be employed underwater and current underwater available technologies, mainly based on acoustical solutions, still pose problems due to low propagation speed of sound in water and low data-rate. In the last years, the interest towards optical wireless communication has increased both for terrestrial (Akella et al, 2005) than for underwater applications (Doniec et al, 2010) since it allows to overcome some of the problems of acoustical communication (Akyildiz et al, 2005). In fact low data rate and low propagation speed require specific solutions and make it difficult the integration of underwater technologies with current available terrestrial modules.…”

Section: Introductionmentioning

confidence: 99%

Prospects and Problems of Optical Diffuse Wireless Communication for Underwater Wireless Sensor Networks

Anguita¹,

Brizzolara²,

Parodi³

2010

Wireless Sensor Networks: Application-Centric Design

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“…The base heuristic routes the remaining demands in decreasing order of magnitude. For each demand, it chooses a route using constrained shortest path first (CSPF) 3 , with constraints being that of available interfaces and bandwidth. Thus, t n+1 is the largest remaining demand.…”

Section: Base Heuristicmentioning

confidence: 99%

Integrated topology control and routing in wireless optical mesh networks

et al. 2007

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We study the problem of integrated topology control and routing in Free Space Optical (FSO) mesh backbone networks. FSO links are high-bandwidth, low interference links that can be set-up very fast, making them suitable for mesh networking. FSO networks are highly constrained by interface constraints, i.e., constraints on the number of FSO links a node can establish. We prove the problem to be NP-Hard and propose efficient algorithms for integrated topology control and single-path or multi-path routing.

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Building blocks for mobile free-space-optical networks

Cited by 38 publications

References 13 publications

Throughput and delay analysis for hybrid radio-frequency and free-space-optical (RF/FSO) networks

Throughput and delay analysis for hybrid radio-frequency and free-space-optical (RF/FSO) networks

Prospects and Problems of Optical Diffuse Wireless Communication for Underwater Wireless Sensor Networks

Integrated topology control and routing in wireless optical mesh networks

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