TDM and FDM Overlays on Bluetooth

This work aims at providing a proof of concept for multiplexing in Bluetooth by using traditional (TDM and FDM) multiplexing overlays upon frequency hopping spread spectrum (Bluetooth Modulation) by means of a functional simulation.This overlaid multiplexing technique can simplify the point to multi-point connections, especially when there are multiple Bluetooth devices in the vicinity and using the limited ISM spectrum.The available narrow bandwidth can be better utilized in point to multipoint connections using the proposed method. I.INTRODUCTIONNamed after the Scandinavian King Harald Bluetooth, famous for uniting the countries Denmark and Norway during the 10 th Century, Bluetooth was developed as a cheap short range communication protocol.This project Bluetooth was support by conglomeration of companies: Ericsson, IBM, Intel, Nokia, and Toshiba and rigorously promoted by many other wireless communication and portable devices companies.[1,2] Bluetooth uses the unlicensed Industrial, Scientific, and Medical (ISM) band around the 2.4 GHz frequency range.A variety of other home appliances and public devices operate in this unlicensed frequency band, such as, cordless phones, microwave ovens, garage door openers, broadcasting devices, etc.This causes a lot of interference and the disturbance in the small band.There are also other wireless communication technologies using the same Industrial, Medical & Scientific (ISM) band.The two protocols that operate in this band are the 802.11 also known as WiFi and Home RF.1. Developing algorithm for generating the hopping code for an overlaid connection.2. Protocol for establishing an overlaid connection between the Master and Slave device.3. Implement a working model in hardware.