Trade-offs in Communications Designs

• Satellite and Deep Space Communications

              - Power is expensive to generate in space and transmission distances are enormous - Must energy efficient

• Microwave Relay Towers

              - Power is cheap, but available bandwidth is restricted by - Power is cheap, but available bandwidth is restricted by regulation-Must be bandwidth efficient

• Cellular Phones

               - Power is costly (impacts battery life and size) but bandwidth is also limited - Must be both bandwidth and power efficient