g/ robustness against delay and jitter. multicasting, Multimedia Streaming Throughput Mobile broadcasting/ non-live multicasting, Delay e-Education (e.g., education movies), Multimedia, Mobile commerce, Remote collaboration (Continued) Table 1-1 IMT-Advanced Service Classification Requirements [11] Continued Service Parameters Experience Service Class (Numerical Description Class Values) Example Services [12] Interactive In the interactive user experience class, Interactive Throughput two service classes are distinguished. e-Education (e.g., data search) high delay Interactive services that permit relatively Consultation (e.g., data search) high delay which usually follow Delay Internet browsing Mobile commerce a request-response pattern (e.g., web Location-based services browsing, database query, etc.). In such ITS-enabled services cases, response times in the order of Interactive low a few seconds are permitted. Interactive Throughput Emergency calling delay services requiring significantly lower e-mail (IMAP server access) delays are remote server access (e.g., Delay 20 ms Remote collaboration (e.g., IMAP) or remote collaboration. desktop sharing) Public alerts (e.g., with feedback) Messaging (instant messaging) Mobile broadcasting/ multicasting (mobile interactive personalized TV) Background Interactive gaming The background class only contains Background Throughput delay-insensitive services, SO that there Messaging is no need for further differentiation. Video messaging Delay < 2 S Public alerts E-mail (transfer RX/TX, e.g., POPi server access) Machine-to-machine File transfer/download e-Education (file download/ upload) Consultation (file download/ upload) Internet browsing, Location-based service a The Internet Message Access Protocol (IMAP) is one of the prevalent IP protocols for e-mail retrieval. Many e-mail clients and servers support this protocol as connection [3, ,18]. "The Post Office Protocol version 3 (POP3) is an application-layer IP protocol used by local e-mail clients to retrieve e-mail from