Abstract: Mobile ad hoc Network (MANET) includes a first node of a plurality of nodes which self-assigns a role as a part of a network-spanning backbone upon a determination by the first node that one or more criteria have been satisfied. The first node uses the network-spanning backbone to facilitate a first-tier control plane communication service within the MANET. The first node also communicates within the MANET using a second-tier control plane communication service separate from the first-tier control plane communication service. The second-tier control plane communication service is used by the first node when communicating exclusively with neighbor nodes that are a 1-hop distance from the first node.

Abstract: On-demand allocation of communication capacity in a Mobile ad hoc Network (MANET) involves initiating in a first node of the MANET, a request for network communication capacity. The request is initiated by wirelessly transmitting an access request in a first epoch, during an access request time slot of a TDMA waveform. The access request is directed to one-hop neighbor nodes with which the first node can communicate directly. The first node determines whether the access request has been granted based on one or more responses received from the one-hop neighbor nodes. These responses include an indication by each of the one-hop neighbor nodes regarding their availability to accommodate the access request. The first node subsequently uses network communication capacity granted to it for communicating data.

Abstract: Mobile ad hoc Network (MANET) includes a first node of a plurality of nodes which self-assigns a role as a part of a network-spanning backbone upon a determination by the first node that one or more criteria have been satisfied. The first node uses the network-spanning backbone to facilitate a first-tier control plane communication service within the MANET. The first node also communicates within the MANET using a second-tier control plane communication service separate from the first-tier control plane communication service. The second-tier control plane communication service is used by the first node when communicating exclusively with neighbor nodes that are a 1-hop distance from the first node.

Abstract: A mobile ad hoc network (MANET) includes a first MANET node having a first radio frequency (RF) transceiver and a first controller coupled thereto to generate RF transmissions. A second MANET node has a second RF transceiver configured to communicate with the first RF transceiver, and a second controller coupled to the second RF transceiver. The second controller is configured to cooperate with the second RF transceiver to receive the RF transmissions from the first MANET node, generate a normalized reception value based upon the received RF transmissions and send the normalized reception value to the first MANET node. The first controller is configured to control a transmit power level for a subsequent RF transmission based upon the normalized reception value from the second MANET node.

Abstract: On-demand allocation of communication capacity in a Mobile ad hoc Network (MANET) involves initiating in a first node of the MANET, a request for network communication capacity. The request is initiated by wirelessly transmitting an access request in a first epoch, during an access request time slot of a TDMA waveform. The access request is directed to one-hop neighbor nodes with which the first node can communicate directly. The first node determines whether the access request has been granted based on one or more responses received from the one-hop neighbor nodes. These responses include an indication by each of the one-hop neighbor nodes regarding their availability to accommodate the access request. The first node subsequently uses network communication capacity granted to it for communicating data.

Abstract: A mobile ad hoc network (MANET) includes a first MANET node having a first radio frequency (RF) transceiver and a first controller coupled thereto to generate RF transmissions. A second MANET node has a second RF transceiver configured to communicate with the first RF transceiver, and a second controller coupled to the second RF transceiver. The second controller is configured to cooperate with the second RF transceiver to receive the RF transmissions from the first MANET node, generate a normalized reception value based upon the received RF transmissions and send the normalized reception value to the first MANET node. The first controller is configured to control a transmit power level for a subsequent RF transmission based upon the normalized reception value from the second MANET node.

Abstract: A method to facilitate late entry of a late entrant node into an ad-hoc radio network involves accessing from a memory at the late entrant node an initial frequency hopping sequence for the ad-hoc radio network. The late entrant node uses at least the initial frequency hopping sequence to determine a first frequency to monitor during a communication epoch corresponding to one of the frequency hops. The late entrant node thereafter monitors the first frequency to detect the presence of a beacon signal transmitted by a participating node of the network. Subsequently, the late entrant node determines a second frequency included in the current hopping sequence of the network based on information contained in the beacon signal.

Abstract: Dynamic spectral assignment in an ad hoc network of wireless network nodes (200) includes determining (306) a set of allowed frequencies that can be used by the ad hoc network and a corresponding index value for each of the allowed frequencies. An allowed list is created (308) and comprised of the index values (312) arranged in a deterministic order. A pointer (604) into the allowed list (600) is determined for each one of a total of Nhop frequency hops of a hopping sequence. Each pointer specifies one of the allowed frequencies (601) to be used for a corresponding one of the frequency hops. A wireless frequency hopping communication session is performed among a plurality of the nodes in the ad hoc network, using a frequency for each hop of the hopping sequence as specified by the pointers (604).

Abstract: A communication network may be uncooperative with an uncooperative communications device. The communication network includes mobile wireless communications devices including a collection device and forward devices. Each forward device is configured to detect a received signal characteristic associated with the uncooperative communications device, and transmit the received signal characteristic to the collection device. The collection device is configured to selectively schedule reception of the received signal characteristic based upon a timing of communications among the forward devices, and determine a parameter associated with the uncooperative communications device based upon the received signal characteristic.

Abstract: A communication network may be uncooperative with an uncooperative communications device. The communication network includes mobile wireless communications devices including a collection device and forward devices. Each forward device is configured to detect a received signal characteristic associated with the uncooperative communications device, and transmit the received signal characteristic to the collection device. The collection device is configured to selectively schedule reception of the received signal characteristic based upon a timing of communications among the forward devices, and determine a parameter associated with the uncooperative communications device based upon the received signal characteristic.

Abstract: A method to facilitate late entry of a late entrant node into an ad-hoc radio network involves accessing from a memory at the late entrant node an initial frequency hopping sequence for the ad-hoc radio network. The late entrant node uses at least the initial frequency hopping sequence to determine a first frequency to monitor during a communication epoch corresponding to one of the frequency hops. The late entrant node thereafter monitors the first frequency to detect the presence of a beacon signal transmitted by a participating node of the network. Subsequently, the late entrant node determines a second frequency included in the current hopping sequence of the network based on information contained in the beacon signal.

Abstract: Dynamic spectral assignment in an ad hoc network of wireless network nodes (200) includes determining (306) a set of allowed frequencies that can be used by the ad hoc network and a corresponding index value for each of the allowed frequencies. An allowed list is created (308) and comprised of the index values (312) arranged in a deterministic order. A pointer (604) into the allowed list (600) is determined for each one of a total of Nhop frequency hops of a hopping sequence. Each pointer specifies one of the allowed frequencies (601) to be used for a corresponding one of the frequency hops. A wireless frequency hopping communication session is performed among a plurality of the nodes in the ad hoc network, using a frequency for each hop of the hopping sequence as specified by the pointers (604).

Abstract: A method, apparatus and system that tracks distorted signals in a digital system is disclosed. The method may include receiving an input signal having a first input value when a distorted signal is input to the digital system and has a second input value when a non-distorted signal is input to the digital system, and outputting a signal having a first output value to indicate that a corresponding output signal from the digital system is distorted and has a second output value to indicate that a corresponding output signal from the digital system is not distorted.

Abstract: A tracking apparatus identifies distorted output signals from a digital system caused by at least one distorted signal input to the digital system. A first signal is input to the tracking apparatus when a distorted signal is input to the digital system. A second signal is input to the tracking apparatus when a non-distorted signal is input to the digital system. The tracking apparatus models a delay and widening characteristics of the digital system and operates in parallel with the digital system.

Abstract: A symbol epoch tracking circuit and method for a Continuous Phase Modulation (CPM) receiver. A phase tracking circuit performs carrier phase tracking with little extra computation for a Viterbi decoder and has an excellent tracking performance. The symbol epoch tracking circuit is implemented in a CPM receiver, and could also be implemented as a software defined process for use in any CPM demodulator employing a Viterbi algorithm for accurate data detection.

Abstract: A symbol epoch tracking circuit and method for a Continuous Phase Modulation (CPM) receiver. A phase tracking circuit performs carrier phase tacking with little extra computation for a Viterbi decoder and has an excellent tracking performance. The method can be used in CPM demodulators employing a Viterbi algorithm for data detection.

Abstract: A tracking apparatus identifies distorted output signals from a digital system caused by at least one distorted signal input to the digital system. A first signal is input to the tracking apparatus when a distorted signal is input to the digital system. A second signal is input to the tracking apparatus when a non-distorted signal is input to the digital system. The tracking apparatus models a delay and widening characteristics of the digital system and operates in parallel with the digital system.