2,402 Hits in 3.9 sec

Real-time deployment of multihop relays for range extension

Michael R. Souryal, Johannes Geissbuehler, Leonard E. Miller, Nader Moayeri
2007 Proceedings of the 5th international conference on Mobile systems, applications and services - MobiSys '07  
When the range of single-hop wireless communication is limited by distance or harsh radio propagation conditions, relays can be used to extend the communication range through multihop relaying.  ...  This paper investigates the feasibility of the automated deployment of a multihop network.  ...  In memory of our colleague and friend, Leonard E. Miller .  ... 
doi:10.1145/1247660.1247673 dblp:conf/mobisys/SouryalGMM07 fatcat:bzpuchlbwjbibczb2swrs4kbge

Considerations for improving the capacity and performance of AeroMACS

Robert J. Kerczewski, Behnam Kamali, Rafael D. Apaza, Jeffrey D. Wilson, Robert P. Dimond
2014 2014 IEEE Aerospace Conference  
This paper describes some concepts that may be applied to improve the future capacity of AeroMACS, with a particular emphasis on gains that can be derived from the addition of IEEE 802.16j multihop relays  ...  Given that many fixed applications are possible for AeroMACS, it is necessary to now consider whether the existing capacity of AeroMACS will be reached even before the mobile applications are ready to  ...  • Multihop Relays to Fortify AeroMACS • IEEE 802.16j is an amendment to 802.16 -2009 in which multihop relay stations (RS) may be used as an extension to a base station (BS) and relay traffic between  ... 
doi:10.1109/aero.2014.6836412 fatcat:fb7br2wmxjfzzngzzfg5rrkd24

IEEE 802.16j-relay fortified aeromacs networks; benefits and challenges

Behnam Kamali, Rafael D. Apaza
2014 2014 Integrated Communications, Navigation and Surveillance Conference (ICNS) Conference Proceedings  
The principal argument in favor of application of IEEE 802.16j technology is the flexible and cost effective extension of radio coverage that is afforded by relay fortified WiMAX networks, with virtually  ...  In this article, following introductory remarks on airport surface communications, WiMAX and AeroMACS; the IEEE 802.16j-based WiMAX technology and multihop relay systems are briefly described.  ...  In other words, the IEEE 802.16j amendment introduces multihop relay as an optional deployment enabling the extension of radio outreach and performance enhancement and/ or capacity improvement in an access  ... 
doi:10.1109/icnsurv.2014.6820001 fatcat:3iqtuvu5abei7p4u3un7vp5dmy

Beyond the Star of Stars: An Introduction to Multihop and Mesh for LoRa and LoRaWAN

Roger Pueyo Centelles, Felix Freitag, Roc Meseguer, Leandro Navarro
2021 IEEE pervasive computing  
We review the state of the art of the design and implementation of multihop and mesh solutions for LoRa and LoRaWAN.  ...  LoRa has emerged in recent years as a wireless technology providing long-range communication for-low power Internet of Things (IoT) devices.  ...  In some cases, this can save time for real-time applications [17] , [14] but, in general, multi-hop will add flexibility in exchange for longer end-to-end delays.  ... 
doi:10.1109/mprv.2021.3063443 fatcat:vw7dbnhrq5cdpd4ep4wlojdasa

LoRaWAN Mesh Networks: A Review and Classification of Multihop Communication

Jeferson Rodrigues Cotrim, João Henrique Kleinschmidt
2020 Sensors  
Recently, several studies proposed multihop LoRaWAN networks, thus forming wireless mesh networks. This article provides a review of the state-of-the-art multihop proposals for LoRaWAN.  ...  The growth of the Internet of Things (IoT) led to the deployment of many applications that use wireless networks, like smart cities and smart agriculture.  ...  Acknowledgments: Authors would like to thank all members of the SWAMP project. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s20154273 pmid:32751877 fatcat:2nsffe6mhbgqvkkchv7bbymww4

Performance analysis of real-time multimedia transmission in 802.11p based multihop hybrid vehicular networks

H. Venkataraman, A. d'Ussel, T. Corre, C. H. Muntean, G.-M. Muntean
2010 Proceedings of the 6th International Wireless Communications and Mobile Computing Conference on ZZZ - IWCMC '10  
In this paper, a hybrid IEEE 802.11p-based multihop network communication solution is presented, which makes use of both infrastructure and ad-hoc modes in order to deliver quality-oriented real-time multimedia  ...  Real-time multimedia communications over vehicular ad-hoc networks (VANET) will play an extremely significant role in the next generation intelligent transport systems.  ...  ACKNOWLEDGEMENTS The authors acknowledge the support of Irish Research Council for Science Engineering and Technology (IRCSET).  ... 
doi:10.1145/1815396.1815660 dblp:conf/iwcmc/VenkataramandCMM10 fatcat:rbedf3zmbjhezibh6lankrnpwy

Energy-Efficient Relaying via Store-Carry and Forward within the Cell

Panayiotis Kolios, Vasilis Friderikos, Katerina Papadaki
2014 IEEE Transactions on Mobile Computing  
multihop wireless relaying scheme that uses shortest path routes to the base station.  ...  By investigating structural properties of the proposed mathematical program we show that optimal solutions can be computed efficiently in time.  ...  ACKNOWLEDGMENTS The work reported in this paper has formed part of the Green Radio Core 5 Research Programme of the Virtual Centre  ... 
doi:10.1109/tmc.2012.233 fatcat:z7kapewga5ctrj3dq2of3pphry

Multihop cellular networks: Technology and economics

Xue Jun Li, Boon-Chong Seet, Peter Han Joo Chong
2008 Computer Networks  
Recently, multihop cellular networks (MCNs) were proposed to preserve the advantages of traditional single-hop cellular networks with multihop ad hoc relaying networks, while minimizing the drawbacks that  ...  The limitations of each network type in the above when operating standalone, led researchers to investigate a hybrid system that combines the benefits of single-hop cellular and multihop ad hoc relay networks  ...  Acknowledgements The authors thank our anonymous reviewers for their helpful comments which significantly improved the quality of this paper.  ... 
doi:10.1016/j.comnet.2008.01.019 fatcat:qmzqo3urujajneaexahezctvfi

A dynamic graph optimization framework for multihop device-to-device communication underlaying cellular networks

Yong Li, Chaoming Song, Depeng Jin, Sheng Chen
2014 IEEE wireless communications  
With simple extensions, this dynamic graph optimization framework is capable of modeling other important technical problems for multihop D2D communication underlaying cellular networks.  ...  ranges of which are denoted by dotted thin circles.  ... 
doi:10.1109/mwc.2014.6940433 fatcat:toqhvryn25chdof2vy5e6w5dve

Ensuring coexistence among games and downloads in multihop wireless networks

Claudio E. Palazzi, Armir Bujari, Gustavo Marfia, Marco Roccetti
2015 2015 12th Annual IEEE Consumer Communications and Networking Conference (CCNC)  
Of particular research interest in this scenario is the coexistence between two popular categories of traffic: elastic and real-time, both of them covering a wide range of user applications.  ...  To this end, we study two representative applications, one for each of the above categories, which are content download and interactive game play.  ...  This trend is being driven by the rapid deployment of 802.11 networks and the advantages of relaying packets among nodes.  ... 
doi:10.1109/ccnc.2015.7158068 dblp:conf/ccnc/PalazziBMR15 fatcat:u4fkevk3djdbffdqpcw2kd745i

Mobility-based communication in wireless sensor networks

E. Ekici, Yaoyao Gu, D. Bozdag
2006 IEEE Communications Magazine  
Wireless sensor networks are proposed to deliver in situ observations at low cost over long periods of time.  ...  over deployment time.  ...  Algorithms developed for MBS deployment target calculation of trajectories of MBSs.  ... 
doi:10.1109/mcom.2006.1668382 fatcat:wpe7skgh3zcwxd2ejbdu4bkbta

On the Range Performance of Decode-And-Forward Relays in IEEE 802.11 WLANs

Azadeh Ettefagh, Marc Kuhn, Ingmar Hammerstrom, Armin Wittneben
2006 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications  
We investigate the tradeoff between coverage range and number of relays in a twodimensional scenario.  ...  We introduce three simple MAC schemes for multihop communications and classify them based on delay, simplicity, capacity and application.  ...  All real-time transmissions are performed in CFPs and are fully controlled by the HC so this scheme is appropriate for real-time traffic services.  ... 
doi:10.1109/pimrc.2006.254478 dblp:conf/pimrc/EttefaghKHW06 fatcat:2babwdl5i5ggtawuwhaesgqgpm

Issues and Challenges in Node Connectivity in Mobile Ad Hoc Networks: A Holistic Review

Mohit Jain, Satish Chand
2016 Wireless Engineering and Technology  
There are several techniques to understand the connectivity level for a given network topology.  ...  One of the fundamental properties of an ad hoc network is its connectivity. Maintaining connectivity in wireless networks is extremely difficult due to dynamic changing topology of MANETs.  ...  In first group both relay nodes never move and in other group relay nodes move left at velocity Finds that multi-hop networking with two kind of mobile relay nodes degrades cell extension performance compared  ... 
doi:10.4236/wet.2016.71003 fatcat:5e2twwv5mrdafmhqjccdbdnoge

Cross-Layer Analysis of the End-to-End Delay Distribution in Wireless Sensor Networks

Yunbo Wang, Mehmet C. Vuran, Steve Goddard
2009 2009 30th IEEE Real-Time Systems Symposium  
Extensive test-bed experiments and simulations are performed to validate the accuracy of the framework for both deterministic and random deployments.  ...  Emerging applications of wireless sensor networks (WSNs) require real-time quality-of-service (QoS) guarantees to be provided by the network.  ...  Moreover, work on real-time queueing theory [19] , [38] combines real-time theory and queueing theory to provide stochastic models for unreliable networks.  ... 
doi:10.1109/rtss.2009.27 dblp:conf/rtss/WangVG09 fatcat:h436rrxym5gplb76kgfoai7s4y

A New Real-Time and Guaranteed Lifetime Protocol in Wireless Sensor Networks

Babar Shah, Ki-Il Kim
2014 International Journal of Distributed Sensor Networks  
However, in spite of its importance and necessity in WSNs real-time deployment, no research work has been proposed to solve this complex problem.  ...  Furthermore, the scheduling algorithm is extended to provide real-time routing by adjusting dynamic transmission range according to current energy state of a sensor node.  ...  Identify the neighbor relaying nodes NH occurring in the extended transmission range of for real-time data forwarding as follows: Set of NH := {NH | ∀NH : (NH ) < ( )} .  ... 
doi:10.1155/2014/837457 fatcat:kbag3pcs2fg4ziszb755fre7iy
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