Device to Device Communication using WiFi

In the past decades, the technology is developed tremendously and cellular networks gained a wide recognition and become the most popular of all networks. Communication in 4G technology is based on cellular network in which we have Base Stations (BS). The role of BS is to maintain the co

Project Title

Device to Device Communication using WiFi

Project Area of Specialization

Internet of Things

Project Summary

In the past decades, the technology is developed tremendously and cellular networks gained

a wide recognition and become the most popular of all networks. Communication in 4G technology is based on cellular network in which we have Base Stations (BS). The role of BS is to maintain the communication between the network and the mobile users through a radio link. Cellular users spread out all over the world and provide benefits from many services which include voice, data, and video. The exponential increase in the use of cellular networks results in an increase in load on the BSs because all sorts of communications have to go through the BS even though both the communication devices are in the range of D2D communication. In order to avoid the load on the BSs, D2D is the best option. D2D communication enables user equipment (UE) in close proximity to communicate with the other UE directly without passing through the BS.

D2D communication can be further advances into D2D communication for Long Term Evolution (LTE) i.e.multi-hop D2D communications which will be functioning as a relay system for range extension. As we know that the BS, which is also known as ENodeB is use for resource allocation to allocate the control signal to UEs. Here the UE itself will act as a relay through Wi-Fi signals to provide connectivity and it results in the extension of the coverage of cellular service because it can be used to connect far-away UEs with no cellular coverage to the BSs.

Our project is related to the new emerging technology of 5G.We know that the use of various devices has increased during the last decade and will continue to evolve exponentially. The steep growth in mobile data traffic has gained a lot of attention in recent years. With current infrastructure and radio resources, operators will not be able to cope with the upcoming demands. In order to fulfill all the requirements of the users, many techniques are under consideration in the upcoming era, one of them being device-to-device (D2D) communications.

Project Objectives

The purpose of our project is to achieve the following outcomes or objectives:

-To understand working principles and state of art of D2D communication.

- To understand D2D communication using Wi-Fi as a communication technology.

-To implement D2D communication using embedded hardware and software.

Project Implementation Method

After doing literature review and study about hardware components, Our first target is to establish D2D communication using  zigbee modules and  arduino as a power supply. For this task, we design transmitter and a receiver circuits. The transmitter part comprised of a coordinator XBee, a XBee shield, an Arduino UNO, bread board, a push button, 1-5K? resistor and few jumpers. The receiver part comprised of a router XBee, a XBee shield (through which the XBee communicated with the Arduino), an Arduino UNO, a bread board, LED and a 39? resistor and few jumpers. When the push button was pressed, the XBee took code from Arduino using the XBee shield and wirelessly sent a signal to the receiver. The receiver received it and worked according to the respective Arduino code. As a result of this, LED starts to glow. Also a string will be transmitted from transmitter side which will display on the serial monitor at the receivers end.

By using the same method, we extend the range of wireless transmission by using 3 zigbees and  Arduino’s which will act as power supply. In which,one Xbee module acts as a relay which receives data from zigbee coordinator and pass towards the UEs which are out of our coverage. Along with the above 2 tasks we will be working on software simulations. We will implement both the task that is simple D2D communication and multi-hoping on software so that we can check our results.

Benefits of the Project

D2D communication can provide several benefits to users, some of them are mentioned below:

- D2D technology can be an efficient solution in case of emergency networks (an urgent communication network can be established within a short time to replace the damaged infrastructure).

- An advantage of applying D2D technology is that it can take some load off of the cellular network in a local area such as big shopping centers or stadiums.

- Using D2D communications beside cellular communications could raise the spectrum utilization and network capacity.

-D2D can be used to communicate locally between devices to provide high reliability communications especially if the network has failed for any reason - even as a result of the disaster.

Technical Details of Final Deliverable

Our aim is to establish direct communication between UEs. In this project, our first deliverable is the successful transmission of wireless signals between two Xbee modules which are interfaced using Arduino. Message is send from zigBee coordinator which zigBee router receives. Then we move our project to one step ahead. Our next deliverable is extension in the range of wireless transmission between Xbee modules. One Xbee module receives data from one UE and relays it to the other UE which is out of our coverage. Our last task is to simulate Xbee based D2D communication model on the software. Observations will be made on the basis of these simulations.

Final Deliverable of the Project

HW/SW integrated system

Core Industry

Telecommunication

Other Industries

Core Technology

Internet of Things (IoT)

Other Technologies

Sustainable Development Goals

Sustainable Cities and Communities

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com