Design of Energy Efficient Receiver and Transmitter for Optical Communication

In the past, the modes of communication were wired, wireless and then came optical fiber communication into scenario. Nowadays, a new technology have been introduced known as Free Space Optics (FSO) that uses line of sight technology which uses lasers and photo detectors to provide optical connection. In this paper, the main aim of the author is to design an energy efficient transceiver for wireless optical communication. This paper consists of a transceiver design that is implemented on Xilinx ISE Design Suite 14.2 and results were tested on 28nm FPGA platform that is Kintex-7. Our design is based on 28nm FPGA and the device used is XC7K160T, package used is FBG676 and it is working on -3 speed grade. The advantages of FSO over fibre are it provides unlimited bandwidth, freedom from licensing, speed is very high, and high bit rate. Nowadays, bit rate is 2.5Gbps and in future it is expected to be 10Gbps. In this paper frequency scaling technique is used and frequency is varied to obtain power consumption of the Transceiver. Airflow has been kept 250 LFM and medium Heat sink. Power has been analyzed at different temperature range. At the end it can conclude that the maximum power consumption is at 2.2 GHz frequency and minimum power consumption is at 1.2 GHz. In terms of temperature maximum power is consumed at 56.7oC and minimum is consumed at 21oC.