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Towards a reliable parallel redundant WLAN black channel

Markus Rentschler, Per Laukemann
2012 2012 9th IEEE International Workshop on Factory Communication Systems  
A fault-tolerant wireless "black channel" is achieved that is able to fulfill soft real-time availability plus providing redundancy.  ...  This is realized with standard WLAN components and the "Parallel Redundancy Protocol" (PRP) according to IEC 62439-3.  ...  This forms a black channel, where the redundancy is not visible behind the red boxes towards the end devices PLC1 and PLC2.  ... 
doi:10.1109/wfcs.2012.6242573 dblp:conf/wfcs/RentschlerL12 fatcat:5l6of2plqfcd3iq76uqoosfsky

Performance analysis of parallel redundant WLAN

Markus Rentschler, Per Laukemann
2012 Proceedings of 2012 IEEE 17th International Conference on Emerging Technologies & Factory Automation (ETFA 2012)  
In this work, a series of measurements on a redundant setup with two parallel WLANs according to IEEE 802.11n in diverse configuration settings is conducted and the results presented.  ...  The application of the "Parallel Redundancy Protocol" (PRP) according to IEC 62439-3 with two diverse redundant wireless channels achieves an improved overall wireless communication channel.  ...  We investigated whether this system can form a reliable black channel suitable for safety applications under certain timing constraints.  ... 
doi:10.1109/etfa.2012.6489647 dblp:conf/etfa/RentschlerL12 fatcat:67uawaqb5rchfpjoydmppms5la

Simulative comparison of parallel redundant wireless systems with OMNet++

Markus Rentschler, Hassan H. Halawa, Ramez M. Daoud, Hassanein H. Amer, Ahmed T. ElSayed, Alia H. Nagui, Mohamed M. ElShenawy, Karim N. Tawfik, Mohamed ElMansoury, Mostafa Hendawy, Hany M. ElSayed
2014 2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE)  
Parallel redundant point-to-point transmission utilizing a dual-radio wireless infrastructure has been identified as a powerful approach to improve the performance of wireless communication.  ...  characteristics of parallel redundant operation for these wireless standards.  ...  A recently presented example is Parallel Redundant WLAN (PRP-WLAN, see Fig.1 ), which uses the Parallel Redundancy Protocol (PRP) according to IEC 62439-3 as splitter and combiner units on the Ethernet  ... 
doi:10.1109/isie.2014.6864773 dblp:conf/isie/RentschlerHDAEN14 fatcat:34fykxftrbbfzcl4fsdfqdzuxq

Green WLANs: On-Demand WLAN Infrastructures

Amit P. Jardosh, Konstantina Papagiannaki, Elizabeth M. Belding, Kevin C. Almeroth, Gianluca Iannaccone, Bapi Vinnakota
2008 Journal on spesial topics in mobile networks and applications  
As a specific solution, we propose SEAR, a practical and elegant RoD strategy for high-density WLANs.  ...  In this paper, we bring to attention that a large fraction of idle WLAN resources results in significant energy losses.  ...  We deploy these nodes to form a WLAN parallel to the production WLAN deployed in our building because the production WLAN is not open for experimentation.  ... 
doi:10.1007/s11036-008-0123-8 fatcat:cbldjwk7jjb6vpozo4wxuak3xa

Software Defined Radio Implementation (With simulation & analysis)

A.Shriram K Vasudevan, B. Sivaraman R C., Z.C. Alex
2010 International Journal of Computer Applications  
To develop a suitable channel model to include signal fading and Additive White Gaussian Noise.  ...  The communication channel is assumed to be flat fading channel where the transmitted sub carrier undergoes flat fading. The ideal channel model for this type of channel is chosen as Nakagami channel.  ...  A redundant stateful-failover situation is required.  ... 
doi:10.5120/848-1183 fatcat:ldfgwfqb7fhcllixbfkyuoswxu

MAR

Pablo Rodriguez, Rajiv Chakravorty, Julian Chesterfield, Ian Pratt, Suman Banerjee
2004 Proceedings of the 2nd international conference on Mobile systems, applications, and services - MobiSYS '04  
MAR, thus, provides a faster, more stable, and reliable communication channel to mobile users.  ...  GPRS, UMTS, CDMA, 802.11), or a single wireless channel, users can obtain significant benefits by using the multiplicity of choices available.  ...  faster, smoother, and more reliable wireless channel.  ... 
doi:10.1145/990064.990091 dblp:conf/mobisys/RodriguezCCPB04 fatcat:yfoq2drg2jbejizekpi3xndbp4

Analysis of NOMA-based Retransmission Schemes for Factory Automation Applications

Eneko Iradier, Lorenzo Fanari, Inigo Bilbao, Jon Montalban, Pablo Angueira, Oscar Seijo, Inaki Val
2021 IEEE Access  
A major limitation for traditional wireless architectures is related to the harsh nature of the industrial propagation channel.  ...  Indeed, there is a considerable research effort ongoing in the area of wireless systems, not only from academia, but also from companies, towards novel solutions that fit Industry 4.0 KPIs.  ...  in parallel links.  ... 
doi:10.1109/access.2021.3059069 fatcat:lco5wosr7ngpfdagh75omno5ty

Adaptive Multi-Channel Clustering in IEEE 802.11s Wireless Mesh Networks

Michael Rethfeldt, Tim Brockmann, Benjamin Beichler, Christian Haubelt, Dirk Timmermann
2021 Sensors  
WLAN mesh networks are one of the key technologies for upcoming smart city applications and are characterized by a flexible and low-cost deployment.  ...  We present CHaChA (Clustering Heuristic and Channel Assignment), a distributed cross-layer approach for cluster formation and channel assignment that directly integrates the default IEEE 802.11s mesh protocol  ...  The five CHs are each marked with a black square, with the MCH in the center of the grid not highlighted individually.  ... 
doi:10.3390/s21217215 pmid:34770523 pmcid:PMC8588358 fatcat:4ayxa3bkhncb3abwdorlgoforu

Multi-user MAC Protocol for WLANs in MmWave Massive MIMO Systems with Mobile Edge Computing

Yifeng Zhao, Xueting Xu, Yuhan Su, Lianfeng Huang, Xiaojiang Du, Nadra Guizani
2019 IEEE Access  
Hence, exploring the potential of mmWave MIMO systems for WLAN could play a significant role in improving network performance, especially throughput.  ...  In this paper, we introduce mmWave and massive MIMO into traditional WLAN with MEC, which enables a large portion of spatial resources to be allocated among users, and mitigates inter-user interference  ...  Parallelizing scheduling within one RBG, the scheme proposed in [36] eliminates redundant post-scheduling operations by introducing power-based weights to amend link adaptation deviation in each RB scheduling  ... 
doi:10.1109/access.2019.2952174 fatcat:vkgayueavbhkdbygba7gy3roai

Realizing a Low-Power Head-Mounted Phase-Only Holographic Display by Light-Weight Compression

Burak Soner, Erdem Ulusoy, A. Murat Tekalp, Hakan Urey
2020 IEEE Transactions on Image Processing  
quality at target rates of 60-200 Mbit/s that can be reliably achieved by current wireless technologies.  ...  To mitigate this compute power constraint, display-ready POHs shall be generated on a nearby server and sent to the HMHD in compressed form over a wireless link.  ...  Therefore, compression should be applied on the "display-ready" POH rather than the complex hologram. • R4: While current WLAN channels can reliably sustain about 60-200 Mbit/s, on average this is nearly  ... 
doi:10.1109/tip.2020.2972112 pmid:32070955 fatcat:dnjvomm54zb2tnsqsvrtlekhha

Mobility Management for All-IP Mobile Networks [chapter]

Quan Le-Trung, Paal Engelstad, Tor Skeie, Frank Eliassen, Amirhosein Taherkordi
2011 Emerging Wireless Networks  
The gateway decapsulates packets and forwards them toward a base station.  ...  Firstly, reliable delivery is one of the key requirements to be imposed by MIH users, and thus, MIH signaling messages should be carried over a reliable transport protocol.  ...  Mobility Management Open Issues Major problems of existing work in IP mobility management for all-IP mobile networks are either the lack of, or little focus on: i) a standardized interface for cross-layer  ... 
doi:10.1201/b11420-4 fatcat:47vvjt37xbfjdhs2egr4xhrvoy

An efficient genetic algorithm for large-scale planning of dense and robust industrial wireless networks

Xu Gong, David Plets, Emmeric Tanghe, Toon De Pessemier, Luc Martens, Wout Joseph
2018 Expert systems with applications  
As a progress beyond the state-of-the-art wireless planning, two full coverage layers are created. The second coverage layer serves as redundancy in case of shadowing.  ...  A greedy heuristic based over-dimensioning (GHOD) algorithm and a random OD algorithm are taken as benchmarks.  ...  ., Guitouni, A., 2015. A genetic algorithm based decision support system for the multi-objective node placement problem in next wireless generation network. Applied Soft Computing 33, 278-291.  ... 
doi:10.1016/j.eswa.2017.12.011 fatcat:xzjz6am735hkdkf7j3vyr7h75u

The Delft UMTS Testbed and End-user Security Features

Carleen Maitland
2003 Social Science Research Network  
A move towards mobile Internet browsers is on the horizon with 3G handsets.  ...  has 3 parallel releases, 'release 99', 'release 4' and 'release 5'.  ...  Appendix A -UMTS standard and security features Appendix C -WLAN & Cellular Network Integration  ... 
doi:10.2139/ssrn.618062 fatcat:geys3qvyarchnfa3ozzossvjsy

A survey of intrusion detection in wireless network applications

Robert Mitchell, Ing-Ray Chen
2014 Computer Communications  
of the same or different types of concerns and considerations for wireless intrusion detection with respect to specific attributes of target wireless networks including wireless local area networks (WLANs  ...  Intrusion tolerance measures can be static techniques that involve some form of redundancy; examples of static intrusion tolerance techniques are parallel or k-of-n designs.  ...  These studies treat the analysis function as a black box while proposing data collection innovations.  ... 
doi:10.1016/j.comcom.2014.01.012 fatcat:24cujhgddrfppnbrtqy4u7xvm4

Genetic Algorithms in Wireless Networking: Techniques, Applications, and Issues [article]

Usama Mehboob, Junaid Qadir, Salman Ali, Athanasios Vasilakos
2014 arXiv   pre-print
In this paper, we provide a comprehensive survey of the applications of GAs in wireless networks.  ...  The design of wireless networking is challenging due to the highly dynamic environmental condition that makes parameter optimization a complex task.  ...  [122] WMN SOGA Binary encoding of nodes A dynamic mesh topology design, using GAs, while maintaining low network cost and path redundancy at base station for reliability.  ... 
arXiv:1411.5323v1 fatcat:ti4spodypja2hebqtttzuq77pa
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