Lora Enabled Sustainable Messaging System For Isolated Communities

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Description

Lora Enabled Sustainable Messaging System For Isolated Communities

ABSTRACT:

                      More than one billion people worldwide cannot take advantage of even the most basic connectivity services, most of them living in isolated communities. Even simple messaging services would be of great help for example to farmers wishing to know the price of a certain good they are interested to sell or buy before deciding whether a possibly long, or expensive. In this paper, we describe a low-cost and low-power system based on the LoRa protocol to provide a messaging system without being subject to recurring costs. LoRa networks allow for very long wireless links that can connect villages and towns. In addition to the simple messaging application, LoRa can be used to distribute sensor information to communities or to provide disaster alerts. This system falls in the category of community networks, where users build their network as no infrastructure is available Lora Enabled Sustainable Messaging System For Isolated Communities

 


Lora Enabled Sustainable Messaging System For Isolated Communities

INTRODUCTION:

Even the simplest messaging services are hardly available in rural areas in developing countries. The possibility to communicate between villages and between villages and main cities is a highly demanded service either for purely personal use or for commercial purposes. The latter is paramount in villages where for example farmers would like to know the price of a certain good they are interested to sell or buy before deciding whether a possibly long, or expensive. The ITU 2017 statistics report that mobile-broadband subscriptions have grown more than 20% annually in the last five years and have reached 56.4 % of the world population by the end of 2017. However, mobile broadband prices represent more than 5% of GNI per capita in many of the least developed countries and are therefore not affordable for the large majority of the population. Whilst most cities enjoy 3G and 4G connectivity, mobile coverage does not exist in many rural areas. Those who are not covered at all (coverage gap) are 1.2 billion. The lack of coverage in rural areas is the consequence of a basic economic challenge deploying infrastructure there can be twice as expensive, while revenue can be as much as ten times lower. Where GSM is present, SMS has been the killer application for mobile services all over the world due to its ability to maintain communication between individuals and also interconnect members of a community. Those who benefit from GSM coverage are likely to own a smartphone penetration rate is 44% worldwide and is expected to reach 59% by2022. 

The solution we developed aims at offering messaging services to isolated areas, not covered by GSM signals. Providing low-cost, low-power messaging services to rural areas without affordable access to existing communications networks is certainly an important and relevant application, and the described system using IoT tools is a compelling approach to do so. Furthermore, in case of disasters, the LoRa network can be used for exchanging emergency messages at long distances even in the case of disruption of the cellular infrastructure.


EXISTING SYSTEM:

  • GSM based messaging 
  • Conventional CB Radio communication 
  • Internet communication 
  • Voice calling 

DISADVANTAGES:

  • Mobile network-based networks are unavailable in remote locations and disaster-struck areas
  • CB radio needs a lengthy antenna to communicate a long-range
  • Internet is available only available as long there is network availability 

PROPOSED SYSTEM:

  • LoRa-based messaging system
  • Communication is possible without a mobile network
  • Arduino based development 
  • Can be used in remote areas 
  • One-to-one communication 
  • Mesh communication is also possible 

ADVANTAGES:

  • Can be used when there is no alternative communication is available 
  • Can be used in disaster-struck areas for interconnecting emergency services 
  • Communication is possible without any backend network infrastructure 

BLOCK DIAGRAM:

Node 1

Lora Enabled Sustainable Messaging System For Isolated Communities 1
Lora Enabled Sustainable Messaging System For Isolated Communities

Node 2

Lora Enabled Sustainable Messaging System For Isolated Communities 2
Lora Enabled Sustainable Messaging System For Isolated Communities

Hardware required:

  • Arduino
  • Lora module

Software required:

  • Arduino IDE
  • Embedded C

 

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