Cognitive Radio Performance Enhancement Based on Frequency Hopping System

Kadhim, Aws Ahmed; Sadkhan, Sattar B.

doi:10.1109/it-ela50150.2020.9253081

Cited by 12 publications

(3 citation statements)

References 8 publications

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“…The main concept behind random frequency hopping is that by constantly changing the transmission frequency, it becomes difficult for interfering signals or eavesdroppers to disrupt the communication. This technique is commonly used in military communications and other applications where secure and reliable wireless communication is crucial [14].…”

Section: Random Frequency Hoppingmentioning

confidence: 99%

“…Recent studies have explored the potential of combining multiple coexistence strategies to enhance wireless communication system performance [9,12], including frequency-totime mapping-based frequency hopping receivers [13] and cognitive radio techniques [14]. There is no single solution for enhancing coexistence in wireless communication systems in the 2.4 GHz ISM frequency band and a combination of approaches may be necessary.…”

Section: Introductionmentioning

confidence: 99%

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Improved Spectrum Coexistence in 2.4 GHz ISM Band Using Optimized Chaotic Frequency Hopping for Wi-Fi and Bluetooth Signals

Eltholth

2023

Sensors

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Efficiently managing coexistence is crucial for achieving high-quality wireless communication in the Industrial, Scientific, and Medical (ISM) band where multiple wireless communication systems operate. Coexistence problems between Wi-Fi and Bluetooth Low Energy (BLE) signals are especially significant due to their shared frequency band, which often leads to interference and a reduced performance for both systems. Therefore, effective coexistence management strategies are essential for ensuring the optimal performance of Wi-Fi and Bluetooth signals in the ISM band. In this paper, the authors conducted a study to investigate coexistence management in the ISM band by evaluating four frequency hopping techniques: random, chaotic, adaptive, and an optimized chaotic technique proposed by the authors. The optimized chaotic technique aimed to minimize interference and ensure zero self-interference among hopping BLE nodes by optimizing the update coefficient. Simulations were conducted in an environment with existing Wi-Fi signal interference and interfering Bluetooth nodes. The authors compared several performance metrics, including the total interference rate, total successful connection rate, and trial execution time for channel selection processing time. The results indicated that the proposed optimized chaotic frequency hopping technique achieved a better balance between reducing interference with Wi-Fi signals, achieving a high success rate for connecting BLE nodes, and requiring minimal trial execution time. This makes it a suitable technique for managing interference in wireless communication systems. While the proposed technique had a higher interference than the adaptive technique for small numbers of BLE nodes, for larger numbers of nodes it had a much lower interference than the adaptive technique. The proposed optimized chaotic frequency hopping technique provides a promising solution for effectively managing coexistence in the ISM band, particularly between Wi-Fi and BLE signals. It has the potential to improve the performance and quality of wireless communication systems.

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Section: Random Frequency Hoppingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improved Spectrum Coexistence in 2.4 GHz ISM Band Using Optimized Chaotic Frequency Hopping for Wi-Fi and Bluetooth Signals

Eltholth

2023

Sensors

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“…However, the proposed method in this article is based on automated transmission. Also, recently, machine learning and cognitive approaches are exploited in FH to select the optimal channel set, which yields performance improvement encountering intentional interferences [11], [12], [13].…”

Section: Introductionmentioning

confidence: 99%

Improving the Performance of HF Radio Networks in Presence of Interference: Frequency Hopping Automatic Link Establishment

Haghbin

Khodaverdizadeh

Razzazi

2022

Preprint

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Automatic Link Establishment (ALE) is crucial in channel assignment and data exchange in HF radio networks. The time of link establishment and its quality are two main concerns in this criterion establishment. In jamming environments, the quality of the channels is seriously influenced by the jammer signals. Frequency Hopping (FH) approaches supports communication links to overcome the jamming impairments, and the traditional ALE algorithm can be made more stable by using this approach. This paper has developed ALE algorithms to automatically establish links to handle different jamming scenarios and establish robust links to exchange data with the proposed FH-ALE system. Besides, in the proposed algorithm, we have considered the time of link establishment to be almost identical to the current ALE scenario. Hence, in the normal channel condition, the throughput value is approximately identical in proposed and traditional cases. The simulation results represent the superiority of the proposed FH-ALE approach in jamming environments.

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Improving the Performance of HF Radio Networks in the Presence of Interference through Automatic Link Establishment with Frequency Hopping Technique

Khodaverdizadeh

Haghbin

Razzazi

2022

Wireless Pers Commun

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Cognitive Radio Performance Enhancement Based on Frequency Hopping System

Cited by 12 publications

References 8 publications

Improved Spectrum Coexistence in 2.4 GHz ISM Band Using Optimized Chaotic Frequency Hopping for Wi-Fi and Bluetooth Signals

Improved Spectrum Coexistence in 2.4 GHz ISM Band Using Optimized Chaotic Frequency Hopping for Wi-Fi and Bluetooth Signals

Improving the Performance of HF Radio Networks in Presence of Interference: Frequency Hopping Automatic Link Establishment

Improving the Performance of HF Radio Networks in the Presence of Interference through Automatic Link Establishment with Frequency Hopping Technique

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