Abstract:
Resource management in ad-hoc wireless communications system for increased spatial reuse of signal spectrum. The method according to the invention comprises : receiving a request to reserve message from a first wireless communication device (WCD); detemining a signal quality value based on the received request to reserve message; providing, as a response, a transmission reservation confirm message which includes an assigned data rate; determining a threshold margin of the signal quality value at the data rate; and transmitting a reduction in power value for adjusting the power of the first WCD based on a received power in accordance with the signal quality value and the threshold margin.
Abstract:
Techniques for resolving blinded-node problems are described herein. One aspect operates on the physical (PHY) layer only, which a second layer operates on the medium access control (MAC) layer. Both aspects involve having a node stop processing a data packet that is not destined for it so as to be able to reserve its resources to detect control and other packets. An apparatus for implementing the techniques are also disclosed.
Abstract:
Un procedimiento para establecer un enlace con uno cualquiera de una pluralidad de puntos de acceso en una red mallada, proporcionando cada uno de los puntos de acceso una ruta de datos diferente a través de la red mallada, comprendiendo el procedimiento: calcular una métrica para cada una de las rutas de datos; y seleccionar uno de los puntos de acceso para establecer un enlace basándose en las métricas, en el que la métrica calculada para cada una de las rutas de datos es al menos una de una métrica basada en la velocidad de transmisión en cuello de botella y una métrica de media armónica, comprendiendo el procedimiento además la emisión de un mensaje en la red mallada, recibir una o más respuestas que tienen información relacionada con los enlaces de retorno de las rutas de datos, usar la información para calcular las métricas y en el que el cálculo de las métricas comprende además calcular cada una de las métricas basándose en un enlace inalámbrico con el punto de acceso para la correspondiente ruta de datos y la información.
Abstract:
Flows admitted to a mesh node may be controlled through contention access parameters. The admitting node may determine a desired transmission opportunity duration, and a transmission opportunity frequency. Furthermore, the node may achieve the flow rate and delay bound requirements of the admitted flow based at least in part upon the desired transmission opportunity duration, and the transmission opportunity frequency. The data rate and the access frequency of the admitted node may be monitored at the physical access level. The flow rate requirement may be accomplished based at least in part upon an adjustment to the transmission opportunity duration. The delay bound requirement may be accomplished at least in part upon manipulation of the contention access parameters. The transmission opportunity duration and the access parameters may be determined by the upstream admitting nodes, which may reduce congestion near mesh portals, and accomplish increased data transfer.
Abstract:
An apparatus and method of controlling a traffic stream in a mesh network comprising receiving at a second node a traffic stream admission request to admit a traffic stream from a first node, determining a traffic load for the second node, and determining whether to admit or deny the traffic stream from the first node using the traffic load.
Abstract:
Techniques for resolving blinded-node problems are described herein. One aspect operates on the physical (PHY) layer only, which a second layer operates on the medium access control (MAC) layer. Both aspects involve having a node stop processing a data packet that is not destined for it so as to be able to reserve its resources to detect control and other packets. An apparatus for implementing the techniques are also disclosed.
Abstract:
An apparatus and method of controlling a traffic stream in a mesh network comprising receiving at a second node a traffic stream admission request to admit a traffic stream from a first node, determining a traffic load for the second node, and determining whether to admit or deny the traffic stream from the first node using the traffic load.