HEY CHIPPU HERE IS TOUR ANSWER✓=

Put at least 5 satellites to orbit the Mars. Additional satellites to compensate different orbiting speed around the Sun — thus a distance between planet vary a lot.

There would be no possibility to communicate 100% live due to a lag from distance. The biggest communication problems would be related to lack of interpersonal communication feedback, limited non verbal signals and no possibility to enter truly personal and private relationship between communicators.

All the communication would be asynchronous — like remote teams working in tech companies today. Think about timezones also.

The best system would be a video cast or even full person holographs that could include recording of surroundings — especially important for work related communication (working on whiteboard, drawing, prototyping).