CSMA is the contention access protocol with the partial co-ordination among different users. Illustrate why and how CSMA must provide better throughput performance than ALOHA systems. Plot the throughput curves and provide your comments.
Discuss about the public switched telephone network (PSTN).
Illustrate how a PBX might be employed to provide telephone connections throughout the building.
Illustrate the link layer characteristics of the CDPD.
Illustrate the advanced radio information system (ARDIS).