Assume five sources, each creating 250 characters per second (8bits/character). If each source sends a character per frame. Assume1 synchronizing bit should be added to each frame, find overallrequired channel data rate to serve the five sources.

1. Assume five sources, each creating 250 characters per second (8 bits/character). If each source sends a character per frame. Assume 1 synchronizing bit should be added to each frame, find overall required channel data rate to serve the five sources. 2. A Mobile System uses two bands. The first band of 824 to 849 MHz is used for sending, and 869 to 894 MHz is used for receiving. Each user has a bandwidth of 30 kHz in each direction and a guard band of 3 kHz between the channels. How many users can use their cellular phones simultaneously? Calculate the effective bandwidth for the system and effective rate per user if the SNR is 10dB.