Frequency Hopping

The Coexistence of Technology and Beauty: Hedy Lamarr’s Significant Impact on the Development of Wi-Fi Technology, An IEEE Autobiographical Summary

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The Coexistence of Technology and Beauty: Hedy Lamarr's Significant Impact on the Development of Wi-Fi Technology, An IEEE Autobiographical Summary

01IntroductionIn the legendary stories of wireless communication, the name Hedy Lamarr always shines brightly and is filled with controversy. Not only was she a Hollywood screen goddess, but she was also hailed as the inspiration for Wi-Fi due to her groundbreaking “frequency hopping” technology. However, there are often exaggerations and misunderstandings about her true impact … Read more

An Overview of BLE Frequency Hopping Algorithms

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An Overview of BLE Frequency Hopping Algorithms

BLE has a total of 40 2.4GHz signals, of which 3 are broadcast channels and 37 are data channels. To avoid interference during data communication, frequency hopping occurs among the 37 channels. The BLE protocol defines two frequency hopping algorithms, namely CSA (Channel Selection Algorithm).Here, we will briefly analyze the implementation methods of the two … Read more

Interview: Questions Regarding BLE Bluetooth

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Interview: Questions Regarding BLE Bluetooth

MeshWhat is the TCP/IP protocol corresponding to the mesh network model, and what is the general function of each layer? 0Layer 1: Physical Layer, can be considered as the antenna. 2Layer 2: Network Layer, here it determines whether the data is Bluetooth data, encryption, and decryption. 3Layer 3: Transport Layer, it handles Bluetooth data, packaging, … Read more

5G Upgrade for IoT: MIT’s Ingenious Chip Design Achieves Efficient Frequency Hopping

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5G Upgrade for IoT: MIT's Ingenious Chip Design Achieves Efficient Frequency Hopping

Soroush Araei Researchers at the Massachusetts Institute of Technology (MIT) have designed a new chip component that is expected to expand the application range of the Internet of Things (IoT) into the 5G domain. This discovery reflects a significant push towards 5G-based IoT technology, leveraging the low latency, high energy efficiency, and massive device connectivity … Read more

Enhancing the Scalability of LoRaWAN

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Recently, a paper titled “Do LoRa Low-Power Wide-Area Networks Scale?” published by Martin Bor and Utz Roedig from Lancaster University, UK, pointed out that the scalability of LoRaWAN is currently not very good based on the deployments and tests conducted. According to the tests in the paper, a single LoRaWAN gateway can stably support 120 … Read more