MAC LAYER AND ROUTING PROTOCOLS FOR HETEROGENEOUS AD HOC NETWORKS: ROUTING IN HETEROGENEOUS AD HOC NETWORKS WITH ASYMMETRIC LINKS AND PERFORMANCE EVALUATION STUDIES - Couverture souple

Wang, Guoqiang

 
9783639110371: MAC LAYER AND ROUTING PROTOCOLS FOR HETEROGENEOUS AD HOC NETWORKS: ROUTING IN HETEROGENEOUS AD HOC NETWORKS WITH ASYMMETRIC LINKS AND PERFORMANCE EVALUATION STUDIES
Couverture souple
ISBN 10 : 3639110374 ISBN 13 : 9783639110371
Editeur : VDM Verlag Dr. Müller, 2008

Synopsis

In a heterogeneous ad hoc network, assorted devices with different computation and communication capabilities co-exist and the links are asymmetric. Most MAC layer and routing protocols for ad hoc networks routinely assume that all links are symmetric and are unable to exploit the asymmetric links present in a network, thus leading to an inefficient bandwidth utilization, or, in the worst case, to lack of connectivity. To exploit the asymmetric links, the protocols must deal with the asymmetry of the path from a source node to a destination node which affects either the delivery of the original packets, or the paths taken by acknowledgments, or both. Furthermore, the hidden node problem requires a more careful analysis in the case of asymmetric links. We conclude that MAC layer and routing protocols capable of using asymmetric links are more complex than traditional ones, but can improve the connectivity, and provide better performance. We are confident that approximate results for various performance metrics of wireless networks obtained using time-parallel simulation are sufficiently accurate and able to provide the necessary insight into the inner workings of the protocols.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

In a heterogeneous ad hoc network, assorted devices with different computation and communication capabilities co-exist and the links are asymmetric. Most MAC layer and routing protocols for ad hoc networks routinely assume that all links are symmetric and are unable to exploit the asymmetric links present in a network, thus leading to an inefficient bandwidth utilization, or, in the worst case, to lack of connectivity. To exploit the asymmetric links, the protocols must deal with the asymmetry of the path from a source node to a destination node which affects either the delivery of the original packets, or the paths taken by acknowledgments, or both. Furthermore, the hidden node problem requires a more careful analysis in the case of asymmetric links. We conclude that MAC layer and routing protocols capable of using asymmetric links are more complex than traditional ones, but can improve the connectivity, and provide better performance. We are confident that approximate results for various performance metrics of wireless networks obtained using time-parallel simulation are sufficiently accurate and able to provide the necessary insight into the inner workings of the protocols.

Biographie de l'auteur

Guoqiang Wang received the B.S. degree from Southeast University, Nanjing, in 2001 and the Ph.D degree from University of Central Florida, Orlando, China, in 2007. His research areas include ad hoc routing protocols, grid computing, and distributed and parallel simulation.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2008
Langue
anglais
ISBN 10 
3639110374
ISBN 13 
9783639110371
Reliure
Broché
Nombre de pages
240
Coordonnées du fabricant
non disponible
Personne responsable
non disponible