medium access control wireless (18 Ergebnisse)

ed. 2014. 235 mm x 155 mm. X, 141 p. Hardcover. Versand aus Deutschland / We dispatch from Germany via Air Mail. Einband bestoßen, daher Mängelexemplar gestempelt, sonst sehr guter Zustand. Imperfect copy due to slightly bumped cover, apart from this in very good condition. Stamped. Stamped. Sprache: Englisch.

Zustand: New. KlappentextrnrnWireless networks have become ubiquitous recently and therefore their usefulness has also become more extensive. Wireless sensor networks (WSN) detect environmental information with sensors in remote settings. One problem facing W.

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Paperback. Zustand: Brand New. 115 pages. 9.00x6.25x0.25 inches. In Stock.

Taschenbuch. Zustand: Neu. Neuware - Wireless networks have become ubiquitous recently and therefore their usefulness has also become more extensive. Wireless sensor networks (WSN) detect environmental information with sensors in remote settings. One problem facing WSNs is the inability to resupply power to these energy-constrained devices due to their remoteness. Therefore to extend a WSN's effectiveness, the lifetime of the network must be increased by making them as energy efficient as possible. An energy-efficient medium access control (MAC) can boost a WSN's lifetime. This research creates a MAC protocol called Adaptive sensor Medium Access Control (AMAC) which is based on Sensor Medium Access Control (SMAC) [YHE02] which saves energy by periodically sleeping and not receiving. AMAC adapts to traffic conditions by incorporating multiple duty cycles. Under a high traffic load, AMAC has a short duty cycle and wakes up often. Under a low traffic load, AMAC has a longer duty cycle and wakes up infrequently. The AMAC protocol is simulated in OPNET Modeler using various topologies. AMAC uses 15% less power and 22% less energy per byte than SMAC but doubles the latency. AMAC is promising and further research can decrease its latency and increase its energy efficiency.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - This brief investigates distributed medium access control (MAC) with QoS provisioning for both single- and multi-hop wireless networks including wireless local area networks (WLANs), wireless ad hoc networks, and wireless mesh networks. For WLANs, an efficient MAC scheme and a call admission control algorithm are presented to provide guaranteed QoS for voice traffic and, at the same time, increase the voice capacity significantly compared with the current WLAN standard. In addition, a novel token-based scheduling scheme is proposed to provide great flexibility and facility to the network service provider for service class management.Also proposed is a novel busy-tone based distributed MAC scheme for wireless ad hoc networks and a collision-free MAC scheme for wireless mesh networks, respectively, taking the different network characteristics into consideration. The proposed schemes enhance the QoS provisioning capability to real-time traffic and, at the same time, significantly improve the system throughput and fairness performance for data traffic, as compared with the most popular IEEE 802.11 MAC scheme.

Taschenbuch. Zustand: Neu. Neuware -In wireless multimedia systems, the medium access control (MAC) protocol should play a central role in maximizing the utilization of limited wireless resources while guaranteeing the various QoS requirements for all multimedia traffic classes, especially for the stringent real-time constraint of video service. In addition, the fairness performance becomes one of the main challenges for MAC protocol design, especially for contention-based MAC protocol. This book, therefore, provides firstly a comprehensive overview of the most efficient wireless MAC protocols. Then three novel bandwidth allocation algorithms for video traffic over wireless networks are presented. The first algorithm is based on providing fair packet delay, and the second algorithm is based on providing fair queuing for video packets. The third is based on simple bit rate estimation algorithm for efficient tracking the variable bit rate of video source. Finally, four novel contention-based MAC protocols for wireless networks are presented to maximize the channel throughput and improve the fairness of random access channels while maintaining the simplicity of implementation using fuzzy controller.Books on Demand GmbH, Überseering 33, 22297 Hamburg 148 pp. Englisch.

Zustand: Sehr gut. Zustand: Sehr gut | Sprache: Englisch | Produktart: Bücher | This book gives a comprehensive overview of the medium access control (MAC) principles in cognitive radio networks, with a specific focus on how such MAC principles enable different wireless systems to coexist in the same spectrum band and carry out spectrum sharing.  From algorithm design to the latest developments in the standards and spectrum policy, readers will benefit from leading-edge knowledge of how cognitive radio systems coexist and share spectrum resources.  Coverage includes cognitive radio rendezvous, spectrum sharing, channel allocation, coexistence in TV white space, and coexistence of heterogeneous wireless systems.

Taschenbuch. Zustand: Neu. Medium Access Control for Multimedia Wireless Systems | Mohammed Abd-Elnaby (u. a.) | Taschenbuch | 148 S. | Englisch | 2013 | LAP LAMBERT Academic Publishing | EAN 9783847326243 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Neuware -This work proposed a novel communication protocol for dynamic, distributed wireless networks. This protocol can adapt to users movements as well as the environment changes. A scalable channel prediction scheme is required to implement the practical Channel MAC protocol in practice. We propose a mean-value based channel prediction scheme, which provides prediction with enough accuracy to be used in the Channel MAC protocol. Next, we extend the Channel MAC protocol to support multi-rate communications. We propose a safety margin based technique to provide auto rate adaptation of the multi-rate Channel MAC. The speed, fairness, and resource utilisation in wireless communications are improved by the proposed protocol compared to existing techniques.Books on Demand GmbH, Überseering 33, 22297 Hamburg 168 pp. Englisch.

Zustand: Fine.

Taschenbuch. Zustand: Neu. Protocol Self Organization in Medium Access Control Layer | A Novel Framework of Medium Access Control Self Organization for Wireless Ad Hoc and Sensor Networks | Fan Yu | Taschenbuch | Englisch | VDM Verlag Dr. Müller | EAN 9783639167337 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. Channel Based Medium Access Control for Ad Hoc Wireless Networks | Basic Principles, Rate adaptation and control | Manzur Ashraf | Taschenbuch | Englisch | 2010 | LAP LAMBERT Academic Publishing | EAN 9783838399935 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

Hardcover. Zustand: Brand New. 141 pages. 9.25x6.25x0.50 inches. In Stock.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book gives a comprehensive overview of the medium access control (MAC) principles in cognitive radio networks, with a specific focus on how such MAC principles enable different wireless systems to coexist in the same spectrum band and carry out spectrum sharing. From algorithm design to the latest developments in the standards and spectrum policy, readers will benefit from leading-edge knowledge of how cognitive radio systems coexist and share spectrum resources. Coverage includes cognitive radio rendezvous, spectrum sharing, channel allocation, coexistence in TV white space, and coexistence of heterogeneous wireless systems.

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book gives a comprehensive overview of the medium access control (MAC) principles in cognitive radio networks, with a specific focus on how such MAC principles enable different wireless systems to coexist in the same spectrum band and carry out spectrum sharing. From algorithm design to the latest developments in the standards and spectrum policy, readers will benefit from leading-edge knowledge of how cognitive radio systems coexist and share spectrum resources. Coverage includes cognitive radio rendezvous, spectrum sharing, channel allocation, coexistence in TV white space, and coexistence of heterogeneous wireless systems.

Paperback. Zustand: Brand New. reprint edition. 156 pages. 9.25x6.10x0.37 inches. In Stock.

Zustand: Used: Like New. LIVRE A L?ETAT DE NEUF. EXPEDIE SOUS 3 JOURS OUVRES. NUMERO DE SUIVI COMMUNIQUE AVANT ENVOI, EMBALLAGE RENFORCE. EAN:9781600219443.