Handling high mobility in next‐generation wireless<i>ad hoc</i>networks

Ho, Ai Hua; Ho, Yen-Hung; Hua, Kien A.

doi:10.1002/dac.1056

Cited by 18 publications

(19 citation statements)

References 27 publications

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“…Moreover, we do not assume high mobility of the destination device because of the fact that for scenarios with high mobility very frequent changes in the relay selection or location are needed. ose frequent changes introduce a large signaling overhead and essentially reduce or in some cases even remove the bene ts of relaying, as discussed in [14]. erefore, we assume location-based relaying in scenarios where the destination is a nomadic device.…”

Section: Related Workmentioning

confidence: 99%

Location-based Mechanism for Positioning of a Mobile Relay

Lemić

Behboodi

Handziski

et al. 2017

Proceedings of the 13th ACM Symposium on QoS and Security for Wireless and Mobile Networks

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Leveraging a relay for communication is a promising approach for improving throughput, coverage, and energy e ciency in wireless networks. If the destination device is nomadic, transmi ing through a relay that is always at the same location is usually suboptimal in terms of maximizing the bene ts of relaying. A mobile relay that is capable of positioning itself at di erent locations opens the possibility for dynamic optimization of the path quality between the source and the nomadic destination. How to optimally position the mobile relay in order to maximize the path quality, however, remains a challenging task. Under the assumption that the physical location information of the devices are either known or can be estimated, we propose a mechanism for positioning of the mobile relay with the aim of maximizing the Signal-to-Noise Ratio (SNR) between the source and the destination. e proposed mechanism takes into account the practically unavoidable inaccuracies of estimated locations, as well as the propagation characteristics of the served environment. Using WiFi as an example technology, we experimentally evaluate the proposed mechanism in a complex indoor environment with the support of a speci cally designed testbed infrastructure. For relatively small localization errors, our results show less than 4 dB average di erence between the measured SNR at optimal locations of the mobile relay vs. the SNR at locations yielded by our positioning mechanism. Our results also illustrate how the quality of the paths created by the proposed positioning mechanism degrades in the face of increasing localization errors.

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Section: Related Workmentioning

confidence: 99%

Location-based Mechanism for Positioning of a Mobile Relay

Lemić

Behboodi

Handziski

et al. 2017

Proceedings of the 13th ACM Symposium on QoS and Security for Wireless and Mobile Networks

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“…A virtual router is defined as a logical router that is associated with a particular geographic area and is composed of some mobile nodes [7,8]. Mobile nodes which are situated within the virtual router's geographical area can take part in data packets forwarding.…”

Section: Dvr Routing Algorithmmentioning

confidence: 99%

A new connectionless routing algorithm using cross-layer design approach in MANETs

Ataee-Bojd

Moghim

2016

Automatika

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Original scientific paperRouting is a key issue in wireless ad-hoc networks. The goal of an efficient routing strategy is to improve packet delivery ratio (PDR) and end-to-end delay in MANETs. Limited ability of layered architecture leads to the crosslayer design usage for routing operation in wireless environment. In this paper, a cross-layer connectionless routing is proposed based on Dynamic Virtual Router (DVR). In this algorithm, virtual route discovery process is controlled by restricting the request packets' broadcast to the relatively slow speed, and low loaded nodes located in suitably crowded areas. Each destination decides to choose or discard the found route based on several cross-layer metrics. Using NS-2 simulator, the proposed algorithm is compared with standard DVR and it shows higher packet delivery ratio and lower end-to-end delay compared to DVR.Key words: Cross-layer design, Mobility, Connectionless routing, DVR, Mobile ad hoc networks Novi algoritam preusmjeravanja bez spajanja zasnovan na korištenju različitih slojeva unutar MANET komunikacije. Preusmjeravanje je ključni problem u bežičnim ad-hoc mrežama. Cilj je efikasne strategije preusmjeravanja unaprijediti omjer isporučenih paketa (PDR) i smanjiti ukupno kašnjenje u MANET komunikaciji. Ograničena mogućnost višeslojne arhitekture dovodi do korištenja različitih slojeva za operacije preusmjeravanja u bežičnom okruženju. U radu se predlaže preusmjeravanje bez spajanja zasnovano na dinamičkom virtualnom ruteru (DVR). U predloženom algoritmu, postupak otkrivanja virtualnih puteva upravljan je ograničenjem odaši-ljanja traženih paketa na relativno sporu brzinu i slabo opterećenečvorove locirane u odgovarajuće prometnim područjima. Svako odredište odlučuje o odabiru ili zanemarivanju pronaenog puta komunikacije, a zasnovano je na temelju nekoliko metrika za različite slojeve. Korištenjem NS-2 simulatora, predloženi algoritam usporeen je sa standardnim DVR-om te pokazuje veći omjer isporučenih paketa i manje ukupno kašnjenje.Ključne riječi: Dizajn zasnovan na različitim slojevima, mobilnost, preusmjeravanje bez spajanja, DVR, mobilne ad hoc mreže

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“…The connection failure probability based stability calculation approach monitors the links lifetime in the past, to predict its behavior in the future without considering parameters depend on mobility models. They quest to maximize the stability with constrained path length for improving the route discovery in MANET [7][8][9][10].…”

Section: Related Workmentioning

confidence: 99%

Stability and Energy Aware Multipath Routing for Mobile Ad Hoc Networks

Srinivasan¹,

Kamalakkannan²,

Shantharajah³

2013

IJCA

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Multipath routing protocols for Mobile Ad hoc NETwork (MANET) addresses the problem of load balancing, scalability, security and life time of networks. In this paper, we propose a new multipath protocol, Stability and Energy Aware Multipath Ad hoc On-demand Distance Vector (SEAM-AODV) protocol which is an enhancement of Ad hoc On-demand Distance Vector (AODV) protocol. It designs a bi-objective optimization formulation to compute the reliability factor based on the stability and residual energy of nodes, through cross layer approach. The reliability of the multiple paths is increased through node disjointness. The path with the highest reliability factor value is selected as the primary path for data transmission. It also employs effective route maintenance mechanism to reduce the frequency of route recovery. This protocol is compared with other similar routing protocol: AOMDV. We use ns-2 for simulation. Our simulation results show that, the proposed protocol reduces the packet loss by up to 25 -35 % and routing overhead by about 32-40 %. It also accomplishes 10 -13 % higher packet delivery ratio.

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Handling high mobility in next‐generation wirelessad hocnetworks

Cited by 18 publications

References 27 publications

Location-based Mechanism for Positioning of a Mobile Relay

Location-based Mechanism for Positioning of a Mobile Relay

A new connectionless routing algorithm using cross-layer design approach in MANETs

Stability and Energy Aware Multipath Routing for Mobile Ad Hoc Networks

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