suitable operating system for 8bit ardunio microcontroller

quote "Even if an operating system was available why would you use it. It would just waste precious memory and clock cycles."

thanking you for your replay.. in my university i am working internship topic called car2car communication with canbus shield to other platforms like planet through xigbee and to cloud through wifi so my incharge asking which operating system are you going to use for operating arduino atmege 168 frazis 8 bit-microcontroller to accomplish this project so basically i told hime like freertos,duinos are available and can i develope this project using atmelstudio or arduino ide instead of using realtime operating systems ....thanking you in advance