Abstract: A method for detecting the sources of distributed denial of service attacks is disclosed. Control plane signaling data and user plane data is collected using network monitoring equipment connected to a communications network. The control plane signaling data and user plane data is correlated. Amounts of traffic are calculated for individual computing devices based on the correlated data. One or more computing devices are determined based on the amounts of traffic associated with the one or more computing devices satisfying a device anomaly criterion. A record including a list of the one or more computing devices is generated.

Abstract: A method for detecting the sources of distributed denial of service attacks is disclosed. Control plane signaling data and user plane data is collected using network monitoring equipment connected to a communications network. The control plane signaling data and user plane data is correlated. Amounts of traffic are calculated for individual computing devices based on the correlated data. One or more computing devices are determined based on the amounts of traffic associated with the one or more computing devices satisfying a device anomaly criterion. A record including a list of the one or more computing devices is generated.

Abstract: A network management system is provided in which a processing device coupled to a network performs operations to identify an interface accordance with a rule and associate the identified interface with a category in accordance with the rule. The interface is coupled between a managed device and the network. The rule is based on a name associated with the interface, wherein the name indicates semantic information about data transmitted via the interface. Upon detection of transmission of data via the interface, the processor further performs operations to determine an action associated with the category and apply the action to the data.

Abstract: A network management system is provided in which a processing device coupled to a network performs operations to identify an interface accordance with a rule and associate the identified interface with a category in accordance with the rule. The interface is coupled between a managed device and the network. The rule is based on a name associated with the interface, wherein the name indicates semantic information about data transmitted via the interface. Upon detection of transmission of data via the interface, the processor further performs operations to determine an action associated with the category and apply the action to the data.

Abstract: A communication device encrypts symbols at a physical layer in order to improve encryption of data transmitted over a wireless link. A symbol mapper of the communication device receives a bit stream comprising multiple bits and maps the multiple bits to multiple symbols. An amplitude and phase adjuster of the communication device receives the multiple symbols and encrypts the symbols by applying at least one of a phase shift and an amplitude adjustment to each symbol of the multiple symbols to produce multiple encrypted symbols for transmission over a wireless link. In another embodiment of the present invention, a communication device is provided that is able to decrypt the encrypted symbols by applying at least one of a phase shift and an amplitude adjustment to each encrypted symbol that corresponds to a phase shift or an amplitude adjustment applied to the symbol by a transmitting communication device.

Abstract: Arrangements relating to an Orthogonal Frequency Division Multiplexing (OFDM) receiver (200) can include performing at least one Low-Density Parity Check (LDPC) decoding attempt on a received signal (725) and evaluating at least one parity check for each LDPC decoding attempt (735). Failed LDPC decoding attempts can be counted according to the evaluated parity checks (740). The signal can be selectively processed through at least one joint demodulation-decoding loop according to the counting of failed LDPC decoding attempts (745).

Abstract: In the present sampling technique of a transmitted data stream, a data stream is divided (318, 504) into a predefined number of sample streams to provide a plurality of sample streams, and for at least two of these sample streams, a metric value is assessed (324, 514, 516) and compared (328, 518) to provide a selected sample stream that is likely to resemble transmitted tones as represented by the data stream. The selected sample stream is then accordingly provided (330, 520) for output.

Abstract: A communication device encrypts symbols at a physical layer in order to improve encryption of data transmitted over a wireless link. A symbol mapper of the communication device receives a bit stream comprising multiple bits and maps the multiple bits to multiple symbols. An amplitude and phase adjuster of the communication device receives the multiple symbols and encrypts the symbols by applying at least one of a phase shift and an amplitude adjustment to each symbol of the multiple symbols to produce multiple encrypted symbols for transmission over a wireless link. In another embodiment of the present invention, a communication device is provided that is able to decrypt the encrypted symbols by applying at least one of a phase shift and an amplitude adjustment to each encrypted symbol that corresponds to a phase shift or an amplitude adjustment applied to the symbol by a transmitting communication device.

Abstract: A full duplex wireless communication system (100) one or more wireless communication devices (101) and fixed infrastructure equipment that includes at least a transcoder (201), a router (203) and a base transceiver site (BTS, 103). To reduce delays of information packets communicated between the transcoder and the BTS, the transcoder, router and BTS employ a unique synchronization-based priority scheme. In accordance with the priority scheme, an indication of the status of synchronization between the transcoder and the BTS is included in an information pace to guide the router's processing of the packet. In the event that the router stores the packet the router preferably inserts a time-delay indication into a portion of the packet. The BTS uses the time-delay indication to determine a desired transcoder transmission time, and communicates an indication of the desired transcoder transmission time to the transcoder.

Abstract: A packet prioritization and transmission algorithm for on demand transportation of data packets having different priorities through a shared packet pipe. The algorithm comprises prematurely ending the transmission of a packet having a low priority; placing the remainder of the packet having the low priority in a storage means, holding data of the packet having the low priority in the storage means, transmitting a packet having a high priority, transmitting the remainder of the packet having the low priority once the packet having the high priority is finished transmitting, flagging a packet header of a packet having the low priority to identify pending packets to allow for transmission of packets having the high priority; and determining a priority of an incoming packet.