radio resource management for wireless networks pdf

... on Wireless Communications and NetworkingVolume 2011, Article ID 921623, 15 pages doi:10.1155/2011/921623 Research Article Interference-Aware Radio Resource Management for Local Area Wireless Networks ... and reliable high data-rate local area wireless access In this paper, we propose an interference-aware radio resource management scheme where receivers inform about their throughput, interference, ... efficient wireless access in challenging interference scenarios, for example, multiple networks deployed in the same geographical area and sharing a common band 1 Introduction As the demand for higher

Ngày tải lên: 21/06/2014, 05:20

... effectively improve radio resource utility and system performance of the whole network Keywords: radio resource management, public femtocell networks, resource utility, system performance 1 Introduction ... long-term resource management, which is to allocate spectrum resource between macrocell and femtocell networks; (2) medium-term resource management, which is to allocate radio resources to each ... enough resources Trang 33 Radio resource management schemes3.1 Long-term resource management: spectrum allocation between macrocell and public femtocells Spectrum is one of the most important resources

Ngày tải lên: 20/06/2014, 22:20

... ID 70903, Pages 1 12DOI 10.1155/WCN/2006/70903 Effective Radio Resource Management for Multimedia Broadcast/Multicast Services in UMTS Networks Nuno Souto, 1, 2 Armando Soares, 2 Patricia Eus ... the key issues in multicast transmission is the management of radio resources The main requirement is to make an efficient overall usage of the radio resources This makes the use of a common channel ... incorpo-rating 16-QAM non-uniform constellations In this scheme there are 2 parallel processing chains, one for the basic infor-mation stream and the other for the enhancement informa-tion 4 MACRODIVERSITY

Ngày tải lên: 22/06/2014, 22:20

... protocols for sensor networks,” Wireless Networks, vol 8, no 5, pp 521–534, 2002 [22] X Zhang, J He, and Q Wei, “An energy-efficient dynamic key management scheme in wireless sensor networks,” ... Deterministic Key Management Scheme To fix the flaws present in the aforementioned key management schemes, we propose a distributed deterministic key management scheme (EDDK) for WSNs based on ... storage and is thus more suitable for resource-constrained wireless sensor networks Conclusions In this paper, we proposed an energy-efficient distributed deterministic key management scheme (EDDK) in

Ngày tải lên: 21/06/2014, 11:20

... sensor networks In this paper, we study data-centric storage in mobile wireless networks. To detect mobility of wireless nodes, [11] used received signal strength in wireless LAN to detect wireless ... node(s) instead of performing flood-ing throughout the network, thereby data-centric storage enables efficient data dissemination/access In data-centric storage of wireless networks, wireless devices ... only deal with static wireless networks However, with the increasing deployment of wireless devices, there are emerging pervasive applications that rely on the mobility of wireless device Two representative

Ngày tải lên: 21/06/2014, 18:20

... its formulation, each problem can be solved in real time We believe that the proposed capacity planning. .. and their applications to radio resource management in wireless multimedia networks ... performance physical layer in emerging cellular networks. OFDMA is based on OFDM and inherits immunity to inter- symbol interference and frequency selective fading. Recently, adaptive resource management ... tele- traffic performance (for more details, refer to Section 3.2). In the case of a batch of users arriving at a new cell, for example, during a handover event involving the mobile platform, there

Ngày tải lên: 22/06/2014, 22:20

... [6] For the downlink, the power allo-cation problem for multiservice DS-CDMA wireless net-works is studied in [14], where the downlink power con-trol problem for multicell wireless networks is formulated ... various services The optimization can be performed either in the network level or in the cell level Conventional methods for resource allocation in wireless networks are based on the characteriza-tion ... Due to the limited availabil-ity of radio resources, designing a resource control mecha-nism to utilize the network resources efficiently is a crucial task for the next generation cellular communication

Ngày tải lên: 22/06/2014, 22:20

... therefore provided “as is” for information purposes only. Further use is strictly prohibited. Chapter 3: QoS REQUIREMENTS FOR MULTIMEDIA SERVICES 75 Medium Application Degree of Data Key performance ... requirements for information loss are essentially the same as for conver- sational voice, but, on the contrary, there is more tolerance to delay since there is no direct conversation involved. Therefore, ... Application examples in terms of QoS. This table is reproduced from “Radio Resource Management across Multiple Protocol Layers in Satellite Networks: A Tutorial Overview”, P. Barsocchi, N. Celandroni,

Ngày tải lên: 05/07/2014, 19:20

... satellite networks are very well suited for multicast and broadcast transmissions as well as for DRT services. For about 6 years now, satellite networks are also a commercial solution for completely ... paradigm for the design of next-generation wireless networks. As satellite-based systems evolve towards Internet-centric networks, system adaptivity poses new challenges; for example, dynamic resource ... Robust Audio Tool (RAT) for conversational voice and Quake 2 and Tetrisnet for games. Again, for interactive services we employed RAT (for audio streaming) and VideoLan for video streaming. Conversational

Ngày tải lên: 05/07/2014, 19:20

... a probabilistic resource reservation strategy for real-time services was proposed. The sliding window concept is adopted to predict the nec- essary amount of reserved bandwidth for a new call ... spot-beams. As for real-time services, a new call request is accepted if the originated spot-beam has available bandwidth and resource reservation is successful in future handover spot-beams. As for non ... implementation is therefore a key element for the efficient oper- ation of many satellite systems. Design choices in DBA techniques can greatly impact the overall system performance, and the evolution

Ngày tải lên: 05/07/2014, 19:20

... 2EngineeringTrang 3More information about this series at http://www.springer.com/series/10059Trang 4Haibo Zhou • Xuemin (Sherman) ShenResource Management for Energy and Spectrum Harvesting Sensor Networks 123 ... Spectrum Harvesting Sensor Networks 17 2.3 Joint Energy and Spectrum Harvesting in Wireless Networks 19 2.3.1 Green Energy-Powered SH Networks 19 2.3.2 RF-Powered SH Networks 20 2.4 Conclusion ... protocols in wireless sensor networks: a survey IEEE Commun Surv Tutorials 15(2), 551–591 (2013) 3 A Ahmad, S Ahmad, M Rehmani, N Ul Hassan, A survey on radio resource allocation in cognitive radio

Ngày tải lên: 08/01/2020, 11:32

... 2EngineeringTrang 3More information about this series at http://www.springer.com/series/10059Trang 4Haibo Zhou • Xuemin (Sherman) ShenResource Management for Energy and Spectrum Harvesting Sensor Networks 123 ... Spectrum Harvesting Sensor Networks 17 2.3 Joint Energy and Spectrum Harvesting in Wireless Networks 19 2.3.1 Green Energy-Powered SH Networks 19 2.3.2 RF-Powered SH Networks 20 2.4 Conclusion ... protocols in wireless sensor networks: a survey IEEE Commun Surv Tutorials 15(2), 551–591 (2013) 3 A Ahmad, S Ahmad, M Rehmani, N Ul Hassan, A survey on radio resource allocation in cognitive radio

Ngày tải lên: 09/01/2020, 08:35

... Modelling of virtual radio resource management The management hierarchy of virtual radio resources is also shown in Figure 2, consisting of VRRM on the top of the usual radio resource management entities ... Keywords: Virtualisation of radio resources; Virtual radio resource management; Radio access networks; Network Function Virtualisation 1 Introduction Future mobile networks will have to face the ... than former ones Virtual network operators (VNOs) ask for wireless connectivity in the form of capacity per service, hence, not dealing with physical radio resources at all A model for the management

Ngày tải lên: 02/11/2022, 08:53

... Project management is designed to control the main important elements that provide practical information for achieving project objectives Trang 22in an efficient way Walker defined project management ... (5) As for management, the universally accepted definition includes “The Art of getting things done through people” (6).The definition of management is the basic knowledge in defining PM, management ... successful management in all topics Trang 242.4 Definition of Project Management: Kerzner defined PM as “Project management is the planning, organizing, directing, and controlling of company resources

Ngày tải lên: 07/03/2014, 02:20

... cooperation for wireless networks Kaibin Zhang1*, Liuguo Yin2and Jianhua Lu1 Abstract A novel feedback-based adaptive network coded cooperation (FANCC) scheme is proposed for wireless networks that ... Frame error ratio (FER) performance Index Terms–cooperative wireless network, network coding, fountain codes, distributed coding I Introduction The random fading in wireless networks has posed a fundamental ... and the destination Utilizing each source-destination channel state information obtained at the destination for resource management, it is evident to produce additional cooperative benefits Furthermore,

Ngày tải lên: 20/06/2014, 22:20

... observed performance, especially when there are several radio resource options available that can dynamically be selected Previous research in the field of cognitive radio (CR) resource management ... therefore focus on the evaluation of a CR resource management approach applied to wireless unmanaged OTT CoD services Standardisation activities associated with CR solutions, for composite networks, ... Journal on Wireless Communications and Networking 2011, 2011:148 http://jwcn.eurasipjournals.com/content/2011/1/148 information, generate radio resource selection policies and perform reconfiguration

Ngày tải lên: 20/06/2014, 22:20

... location information to provide a service differ-entiation in IEEE 802.11-based Hot Spot networks We believe that the proposed scheme is very appropriate for providing a QoS scheme for LBSs in wireless ... using the location information to provide a different level of service differentiation and/or fairness for them In this paper, we investigate how to use location information for QoS provisioning ... electronics have also started to be available in home networks for uploading and/or downloading multimedia contents to/from a home gateway On the other hand, wireless Internet service providers (WISPs)

Ngày tải lên: 20/06/2014, 22:20