摘要:
A method and system for distributed collaborative firewalling in a wireless wide area communication network including a plurality of controllers, comprises a binding table that is built by the controller in response to receiving identifiers of wireless clients being served by the controller, where the binding table lists the wireless clients associated with each access port under control of the controller. A processor of the controller is operable to apply stateless firewalling on wireless communication traffic from a wireless client using the binding table, and applying, by each access port, stateful firewalling on the wireless communication traffic from the wireless client.
摘要:
Methods and apparatus are provided for reliably transmitting data. A method comprises identifying a metric for a first frame of a plurality of frames, wherein the metric is indicative of decoding significance for the first frame among the plurality of frames. When the metric corresponds to a relatively high decoding significance, the method further comprises transmitting the first frame in accordance with an enhanced transmission scheme. When the metric corresponds to a relatively low decoding significance, the method further comprises transmitting the first frame in accordance with a default transmission scheme. The reliability of the enhanced transmission scheme is greater than the reliability of the default transmission scheme.
摘要:
A method and system for distributed collaborative firewalling in a wireless wide area communication network including a plurality of controllers, comprises a binding table that is built by the controller in response to receiving identifiers of wireless clients being served by the controller, where the binding table lists the wireless clients associated with each access port under control of the controller. A processor of the controller is operable to apply stateless firewalling on wireless communication traffic from a wireless client using the binding table, and applying, by each access port, stateful firewalling on the wireless communication traffic from the wireless client.
摘要:
Methods and apparatus are provided for reliably transmitting data. A method comprises identifying a metric for a first frame of a plurality of frames, wherein the metric is indicative of decoding significance for the first frame among the plurality of frames. When the metric corresponds to a relatively high decoding significance, the method further comprises transmitting the first frame in accordance with an enhanced transmission scheme. When the metric corresponds to a relatively low decoding significance, the method further comprises transmitting the first frame in accordance with a default transmission scheme. The reliability of the enhanced transmission scheme is greater than the reliability of the default transmission scheme.
摘要:
A system and method for multicast video streaming over a wireless local area network (WLAN) improves scalability and reliability. The method includes configuring the WLAN access point with a reserved video bandwidth (step 1005). A multicast video stream including data packets marked with differentiated services code points (DSCPs) is then received (step 1010). The multicast video stream is then converted to a plurality of “n” unicast streams (step 1015). Data packets in the unicast streams are then streamed from the WLAN access point to a plurality of “n” mobile units using a selective packet discard algorithm that employs the DSCPs (step 1020).
摘要:
A method is disclosed for seamlessly handing over a mobile device from one access point to another access point in a wireless network. The method includes predicting future movement of a mobile device from an associated coverage area to another coverage area within a predefined time period. The method also includes identifying candidate access points to whom the mobile device can connect after the mobile device leaves the associated coverage area and sending a predefined number of communications sessions for the mobile device to the candidate access points. The method further includes transmitting a neighbor report to the mobile device in response to indication of movement by the mobile device to the other coverage area and, when the mobile device roams, transmitting any remaining communications sessions for the mobile device to a second access.
摘要:
A system an adaptive access point node includes (a) a switch disposed within a network, the network comprising at least one virtual local area network; (b) an anchor access point disposed in the at least one virtual local area network, the anchor access point connected to the switch via a data path, the anchor access point configured to receive a broadcast data packet from the switch via the data path; and (c) at least one access point connected to the anchor access point via a local data path to receive the broadcast data packet from the anchor access point via the local data path. The anchor access point and the access points further forward the broadcast data packet to other devices connected thereto.
摘要:
A method and system for adaptive data rate-limiting includes a processor (112) operable to process data at a maximum data processing rate among at least one cryptographic algorithm. A data rate limiter (116) is operable to weight the processing rate of each cryptographic algorithm by a predetermined factor for adapting a data rate of a transceiver of the communication device by the processor based on the at least one cryptographic algorithm being used in the communication device (100) and its associated weighted processing rate.
摘要:
A method and system for adaptive data rate-limiting includes a processor (112) operable to process data at a maximum data processing rate among at least one cryptographic algorithm. A data rate limiter (116) is operable to weight the processing rate of each cryptographic algorithm by a predetermined factor for adapting a data rate of a transceiver of the communication device by the processor based on the at least one cryptographic algorithm being used in the communication device (100) and its associated weighted processing rate.
摘要:
A system and method for multicast video streaming over a wireless local area network (WLAN) improves scalability and reliability. The method includes configuring the WLAN access point with a reserved video bandwidth (step 1005). A multicast video stream including data packets marked with differentiated services code points (DSCPs) is then received (step 1010). The multicast video stream is then converted to a plurality of “n” unicast streams (step 1015). Data packets in the unicast streams are then streamed from the WLAN access point to a plurality of “n” mobile units using a selective packet discard algorithm that employs the DSCPs (step 1020).