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On load adaptation for multirate multi-AP multimedia WLAN-based cognitive networks

Eng Hwee Ong, Jamil Y. Khan
2009 2009 2nd IFIP Wireless Days (WD)  
Existing WLANs can be augmented with cognitive functionality by the introduction of cognitive radios.  ...  However, the frequency-agile cognitive radio supports dynamic spectrum access to channels, which are heterogeneous and have largely different propagation characteristics, from diverse parts of the available  ...  The network-QoS entity consists of service prioritization and admission control to deal with different user service profiles.  ... 
doi:10.1109/wd.2009.5449706 fatcat:zehsl4j4drbjti5ajbuhno5wnu

Cognitive radio network in vehicular ad hoc network (VANET): A survey

Joanne Mun-Yee Lim, Yoong Choon Chang, Mohamad Yusoff Alias, Jonathan Loo, Kun Chen
2016 Cogent Engineering  
Cognitive radio network and vehicular ad hoc network (VANET) are recent emerging concepts in wireless networking.  ...  This paper provides survey and critical analysis on different challenges of cognitive radio VANET, with discussion on the open issues, challenges, and performance metrics for different cognitive radio  ...  Therefore, a SMART protocol which employs data aggregation tool with message fragmentation to achieve efficient bandwidth usage is suggested in Nair, Soh, Chilamkurti, and Park (2012) .  ... 
doi:10.1080/23311916.2016.1191114 fatcat:o7zxpe3fwvgs5dy4vrvlwlgnza

A Survey of Channel Bonding for Wireless Networks and Guidelines of Channel Bonding for Futuristic Cognitive Radio Sensor Networks

Syed Hashim Raza Bukhari, Mubashir Husain Rehmani, Sajid Siraj
2016 IEEE Communications Surveys and Tutorials  
Channel bonding (CB) is a proven technique to increase bandwidth and reduce delays in wireless networks.  ...  It has been applied in traditional wireless networks such as cellular networks and wireless local area networks along with the emerging cognitive radio networks.  ...  ) and cognitive radio networks (CRNs).  ... 
doi:10.1109/comst.2015.2504408 fatcat:6p5jgonjiraazaw74ivqlkq2ca

A survey of MAC issues for TV white space access

You Han, Eylem Ekici, Haris Kremo, Onur Altintas
2015 Ad hoc networks  
The opening of TV white space (TVWS) bands for cognitive access is one of the first tangible steps to solve spectrum scarcity problem in current wireless networks.  ...  This article presents MAC-related challenges related to cognitive access to TVWS, discusses potential approaches to overcoming these challenges, and investigates open research issues.  ...  Both PHY and MAC layer channel aggregation techniques have been proposed to address the fragmentation issue on TVWS access.  ... 
doi:10.1016/j.adhoc.2014.11.009 fatcat:2dl4amo5brddbd6bzald2rxirm

URLLC for 5G and Beyond: Requirements, Enabling Incumbent Technologies and Network Intelligence

Rashid Ali, Yousaf Bin Zikria, Ali Kashif Bashir, Sahil Garg, Hyung Seok Kim
2021 IEEE Access  
As shown in Figure 7 , a radio resource control (RRC) layer specifies a prioritized bit rate (PBR) for each QoS-based channel [113] above the MAC layer.  ...  In the first level, only one fragment without aggregation is permitted to send. Later the second level permits a HEW STA to aggregate only one fragment per MSDU.  ...  , cognitive radio ad hoc sensor networks, transport protocols, VANETS, embedded system, and information security.  ... 
doi:10.1109/access.2021.3073806 fatcat:7ngx3ah5vzdyvcz4nkd2vvdyjy

Recent and Emerging Topics in Wireless Industrial Communications: A Selection

Andreas Willig
2008 IEEE Transactions on Industrial Informatics  
Index Terms-Cognitive radio, IEEE 802154, industrial-QoS, spatial and cooperative diversity, ultra-wideband, wireless sensor networks, ZigBee.  ...  in the next few years (for example cooperative diversity techniques for error control, cognitive radio/opportunistic spectrum access for mitigation of external interferences).  ...  INTERFERENCE MITIGATION USING COGNITIVE RADIO TECHNIQUES Multipath fading is only one source of channel errors, external interferences are another one.  ... 
doi:10.1109/tii.2008.923194 fatcat:4enllnckk5gd5oolkch5xtqg7e

Energy Management in LTE Networks

Kapil Kanwal, Ghazanfar Ali Safdar, Masood Ur-Rehman, Xiaodong Yang
2017 IEEE Access  
This paper discusses various ES techniques for the LTE systems and critically analyses their usability through a comprehensive comparative study.  ...  Wireless cellular networks have seen dramatic growth in number of mobile users. As a result, data requirements, and hence the base-station power consumption has increased significantly.  ...  CRN ADOPTED SWITCHING OFF OF BS The work presented in [90] incorporates Cognitive radio networks with LTE and turns off BSs for energy saving purposes.  ... 
doi:10.1109/access.2017.2688584 fatcat:lckbez2xijd4bd3xzdp3erzquu

A Survey of Radio Resource Management for Spectrum Aggregation in LTE-Advanced

Haeyoung Lee, Seiamak Vahid, Klaus Moessner
2014 IEEE Communications Surveys and Tutorials  
This article provides a review of spectrum aggregation techniques, followed by requirements on radio resource management (RRM) functionality in support of CA.  ...  compatible with LTE Rel. 8.  ...  ACKNOWLEDGMENT This work is performed as part of OneFIT (www.ictonefit.eu) and ACROPOLIS (www.ict-acropolis.eu) projects.  ... 
doi:10.1109/surv.2013.101813.00275 fatcat:axhhpzkolfehxkdgzirprws5by

A Survey of Recent Developments in Home M2M Networks

Min Chen, Jiafu Wan, Sergio Gonzalez, Xiaofei Liao, Victor C.M. Leung
2014 IEEE Communications Surveys and Tutorials  
Automated M2M communications can offset the overhead costs of conventional operations, thus promoting their wider adoption in fixed and mobile platforms equipped with embedded processors and sensors/actuators  ...  In particular, we examine the typical architectures of home M2M networks and discuss the performance tradeoffs in existing designs.  ...  The control separation techniques in the multi-radio multi-channel MAC are surveyed, and a classification of control separation techniques is provided in [16] .  ... 
doi:10.1109/surv.2013.110113.00249 fatcat:luvfymq6vjf3ferq4v7oeiolii

Enhanced Remote Areas Communications: the Missing Scenario for 5G and Beyond 5G Networks

Luciano Mendes, Calos Moreno, Maria Marquezini, Andre Cavalcante, Peter Neuhaus, Jorge Seki, Nathalia Aniceto, Heikki Karvonen, Ivan Vidal, Francisco Valera, Priscila Solis, Marcos Caetano (+2 others)
2020 IEEE Access  
The limitations imposed by orthogonal waveforms in the physical layers hinder the exploitation of vacant TV channels in rural and remote areas. 5G-RANGE, a Brazil-Europe bilateral cooperation project,  ...  This network can be seamlessly integrated with the other 5G scenarios, closing the connectivity gap between the urban, rural and remote areas.  ...  must have a MAC layer with a cognitive engine that can provide narrow and wide bands detection, both in a fragmented spectrum, in an efficient way.  ... 
doi:10.1109/access.2020.3042437 fatcat:z6glvtc65rbktay6jne3ufqiz4

Self-coexistence among interference-aware IEEE 802.22 networks with enhanced air-interface

S. Sengupta, S. Brahma, M. Chatterjee, N. Sai Shankar
2013 Pervasive and Mobile Computing  
In particular, we make use of aggregation and fragmentation of channel carriers, dynamic multiple broadcast messages, and aggressive contention resolution.  ...  IEEE 802.22 is a cognitive radio based Wireless Regional Area Network (WRAN) standard that allows opportunistic access to idle or under-utilized sub-900 MHz TV bands by unlicensed (secondary) networks.  ...  For control signaling, we use fragmentation of channel carriers to minimize the wastage of spectrum band 2 and aggregation of channel carriers for data transmission to maximize 2 Note that channel carriers  ... 
doi:10.1016/j.pmcj.2011.08.003 fatcat:6st6iehxlvdlvcc45goywatq5q

M2M communications for E-health and smart grid: an industry and standard perspective

Zhong Fan, Russell Haines, Parag Kulkarni
2014 IEEE wireless communications  
as Smart Grid and e-Health.  ...  This summary and overview of the ongoing work in M2M from the industrial and standardization perspective complements the prevalent academic perspective of such publications to date in this field.  ...  Work on low-cost LTE MTC focuses on three main areas (radio, baseband, and operation), with discussions of techniques such as reduction of maximum bandwidth, single receiver RF chain, and reduction of  ... 
doi:10.1109/mwc.2014.6757898 fatcat:4jqpz62zfbhvth5s5u7dv2cpnq

Spectrum Pooling for Next Generation Public Safety Radio Systems

William Lehr, Nancy Jesuale
2008 2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks  
of more dynamically flexible and adaptive prioritization policies than is possible with legacy technology.  ...  Adoption of DSA technologies by the public safety community can better align systems with the future of wireless services more generally and can contribute to making next generation public safety radio  ...  A 20-channel digital trunked radio system in any band with three transmit towers and three repeater towers (typical mid-size city configuration) will cost around $20 Million.  ... 
doi:10.1109/dyspan.2008.72 fatcat:o7sblzcxsbgjnpwft25vcqeekq

Electrosense: Open and Big Spectrum Data

Sreeraj Rajendran, Roberto Calvo-Palomino, Markus Fuchs, Bertold Van den Bergh, Hector Cordobes, Domenico Giustiniano, Sofie Pollin, Vincent Lenders
2018 IEEE Communications Magazine  
This limitation hinders taking effective actions in various applications including cognitive radios, electrosmog monitoring, and law enforcement.  ...  A collaborative spectrum monitoring network is designed that monitors the spectrum at large scale with low-cost spectrum sensing nodes.  ...  From 2006 to 2008 she continued her research on wireless communication, energy-efficient networks, cross-layer design, coexistence and cognitive radio at UC Berkeley.  ... 
doi:10.1109/mcom.2017.1700200 fatcat:oyjztnjvyjdmjmqmqpgt7bgzui

Wireless Body Area Networks for Healthcare Applications: Protocol Stack Review

Luis Filipe, Florentino Fdez-Riverola, Nuno Costa, António Pereira
2015 International Journal of Distributed Sensor Networks  
They cover real-time medical information gathering obtained from different sensors with secure data communication and low power consumption.  ...  As a consequence of the increasing interest in the application of this type of networks, several articles dealing with different aspects of such systems have been published recently.  ...  Cognitive radio (CR) is an intelligent radio that can be programmed and configured dynamically.  ... 
doi:10.1155/2015/213705 fatcat:vvsxfv6hsbdvnkbcdz2bd47qum
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