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Internet of Things Wireless Communication Case Study Analysis


Internet of Things Wireless Communications

  1. Compare the Medium Access Control in Lora with the one in Weightless-P. What are the challenges and the benefits of each?

Lora has a medium access in with the one in weight. It has along coverage about 15 to 20 km. Its battery timing is about 10 years with best efficiency and speed as a must and it is the plus feature of having a low cost, it takes low power to recharge and it circles fastly in the market. The technology that it uses is the Chirp Spread Spectrum modulation that makes it the best and the most successful to use and allow the people to use in the market. The devices which are connected with it cost low positioning of them. Lora has a class of devices that it uses or that uses Lora to make their working efficient and smooth are the best efficiency and have the best power to survive in the functioning and working efficiency.  It uses the star topology which is networking from one end to another. This makes it more efficient and strong as well.

2. Compute and discuss the uplink budget of Lora, assuming an end-node transmit power 17dBm, no cable (feeder) losses at transmitter and receiver, an end-node antenna gain of 0 dB, a Lora base station antenna gain13 dBi, a channel bandwidth of 125 kHz, a minimum desired SNR of -10 dB, and a base station noise figure of 6dB. How does this link budget compare with other IoT systems? (Give at least one other example). What is the minimum acceptable SNR for a receiver sensitivity of -130 dBm?

The uplink budget of Lora is not very high not very low as it needs to be done in consistency with the correct use of functioning and the proper circuit should be inserted in its maintenance so that it performs well and gives the best possible outcome from its functioning. The maximum power output of Lora is 20 dBm and it can link budgets around 54 db. It has a multiple access to radio resources and of the asynchronous network. They have a different class of circuits or functions that it uses to get connected with someone else as they do not get mixed or interconnected with each other. Lora has a proprietor who developed it originally by Smetech with which it belongs to. It is the only chipset provider of the Lora still in the market of making and developing chipsets.

It has the coverage of stakeholders with 10,000 networks worldwide serving in IOT systems its some of the main stakeholders are Bouygues, Telecom, Gemalto & Orange and Cisco as well in the US. It is also termed as Lora-WAN as it is used worldwide. If it is connected in the systems with different frequencies that maybe it works or maybe not because it has the capacity of around 20 dBm if you go beyond this level then it will not be able to work properly and efficiently in the wireless communication circuits in IOT systems.

The link budgeting of the Lora makes it more reliable and efficient as they make it more easy to use. Lora is helpful only when it provided by the proper structuring of the features in it. As it is designed to make the batteries powerful which are on wireless basis? This makes there efficiency better and improves their workings as well. It is a low power worldwide used device that is a big achievement of the successful use of technology in IOT.

  1. In your opinion, which are the advantages of a Chirp Spread Spectrum (CSS) modulation that make it suitable for an IOT system?

            According to my opinion, the advantages of chip spread spectrum modulation is very much suitable as it makes the working efficiency of the wireless communication systems in the field of IOT.

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