Cognitive Frequency Hopping

A Novel Approach of Protocol Behavior Identification for TDMA‐Based Frequency Hopping Communication

“…Frequency hopping (FH) communication is an important application of spread spectrum communication, which was widely used in both military and civil affairs [1][2][3][4][5]. Due to its excellent anti-interference ability, as well as its capability to increase the security of wireless services, FH has been implemented diffusely, e.g., in Bluetooth [6], advanced extremely high-frequency (AEHF) communication satellites [7], Military Strategic and Tactical Relay (MILSTAR) communication satellites [8], and emerging dynamic communication systems [9].…”

A Novel Approach of Protocol Behavior Identification for TDMA‐Based Frequency Hopping Communication

“…Frequency hopping (FH) communication is an important application of spread spectrum communication, which was widely used in both military and civil affairs [1][2][3][4][5]. Due to its excellent anti-interference ability, as well as its capability to increase the security of wireless services, FH has been implemented diffusely, e.g., in Bluetooth [6], advanced extremely high-frequency (AEHF) communication satellites [7], Military Strategic and Tactical Relay (MILSTAR) communication satellites [8], and emerging dynamic communication systems [9].…”

Research on Narrowband Interference Suppression and Diversity Characteristics in Fast Frequency-Hopping Communication Systems

“…Frequency-hopping (FH) communication can reach a fairly wide bandwidth and possess the performance of anti-interference, but when the intensity of interference signals far exceeds the anti-interference ability of FH communication system itself, the receiver will fail to receive data precisely, and decrease the anti-interference performance of frequency-hopping system. Therefore, scientists have proposed the interference suppression method to further enhance the anti-interference ability of frequency-hopping system [1][2][3][4].…”

Generation and characterization of orthogonal FH sequences for the cognitive network

“…Conventional frequency hopping (FH) systems in modern electromagnetic environment face many new challenges, such as time-variation, escalating dynamism and diversity with the rapid increase of the FH users, which severely affects the communication quality and the network capacity. To overcome these challenges, a new method known as the cognitive frequency hopping (CFH) [1] was proposed recently. By controlling the FH mechanism based on the spectrum sensing results and communication quality, the CFH exhibits significant reliability compared with the conventional FH and prevents the system performance from being affected by the large number of users and complex interferences [2][3][4][5].…”

A Novel Approach of Protocol Behavior Identification for TDMA‐Based Frequency Hopping Communication

“…Frequency hopping (FH) communication is an important application of spread spectrum communication, which was widely used in both military and civil affairs [1][2][3][4][5]. Due to its excellent anti-interference ability, as well as its capability to increase the security of wireless services, FH has been implemented diffusely, e.g., in Bluetooth [6], advanced extremely high-frequency (AEHF) communication satellites [7], Military Strategic and Tactical Relay (MILSTAR) communication satellites [8], and emerging dynamic communication systems [9].…”

Research on Narrowband Interference Suppression and Diversity Characteristics in Fast Frequency-Hopping Communication Systems

“…Frequency-hopping (FH) communication can reach a fairly wide bandwidth and possess the performance of anti-interference, but when the intensity of interference signals far exceeds the anti-interference ability of FH communication system itself, the receiver will fail to receive data precisely, and decrease the anti-interference performance of frequency-hopping system. Therefore, scientists have proposed the interference suppression method to further enhance the anti-interference ability of frequency-hopping system [1][2][3][4].…”

Generation and characterization of orthogonal FH sequences for the cognitive network

“…Conventional frequency hopping (FH) systems in modern electromagnetic environment face many new challenges, such as time-variation, escalating dynamism and diversity with the rapid increase of the FH users, which severely affects the communication quality and the network capacity. To overcome these challenges, a new method known as the cognitive frequency hopping (CFH) [1] was proposed recently. By controlling the FH mechanism based on the spectrum sensing results and communication quality, the CFH exhibits significant reliability compared with the conventional FH and prevents the system performance from being affected by the large number of users and complex interferences [2][3][4][5].…”

A Novel Approach of Protocol Behavior Identification for TDMA‐Based Frequency Hopping Communication

“…Frequency hopping (FH) communication is an important application of spread spectrum communication, which was widely used in both military and civil affairs [1][2][3][4][5]. Due to its excellent anti-interference ability, as well as its capability to increase the security of wireless services, FH has been implemented diffusely, e.g., in Bluetooth [6], advanced extremely high-frequency (AEHF) communication satellites [7], Military Strategic and Tactical Relay (MILSTAR) communication satellites [8], and emerging dynamic communication systems [9].…”

Research on Narrowband Interference Suppression and Diversity Characteristics in Fast Frequency-Hopping Communication Systems

“…Frequency-hopping (FH) communication can reach a fairly wide bandwidth and possess the performance of anti-interference, but when the intensity of interference signals far exceeds the anti-interference ability of FH communication system itself, the receiver will fail to receive data precisely, and decrease the anti-interference performance of frequency-hopping system. Therefore, scientists have proposed the interference suppression method to further enhance the anti-interference ability of frequency-hopping system [1][2][3][4].…”

Generation and characterization of orthogonal FH sequences for the cognitive network

“…Conventional frequency hopping (FH) systems in modern electromagnetic environment face many new challenges, such as time-variation, escalating dynamism and diversity with the rapid increase of the FH users, which severely affects the communication quality and the network capacity. To overcome these challenges, a new method known as the cognitive frequency hopping (CFH) [1] was proposed recently. By controlling the FH mechanism based on the spectrum sensing results and communication quality, the CFH exhibits significant reliability compared with the conventional FH and prevents the system performance from being affected by the large number of users and complex interferences [2][3][4][5].…”