3G and Internet Protocols Integration (Computer Networking) In the Next Generation Network (NGN), all networks are speculatively expected to e converged to create a ui!uitous communicating environment that will enale one to avail seamless multimedia communication "rom any internet connectivityenaled device to another in any network# In this convergence, gateway is the key element in the network to enale ui!uitous communicati on# $his thesis discusses aout the special e%ort "or the desig n and impl ementation o" a uni !ue PC&to&3G video cal l gateway "or univ ers al mult imedia communication along with its supporting so"t reduced&'IP ('ession Initiation Protocol) cli ent# In 3G cir cuit swit che d net wor k, 3G& 3* umr ella pr otoc ol stack has ee n adopted y 3GPP "or suppor ting video con ver sati on# 3G& 3* con sist s o" two cor e components I$+ & $ #- ("or call contr ol) and I$+& $ #3 ("or packet multiplexing.demultiplexing)# *eanwhile, 'IP is the commonly used session initiation protocol "or multimedia communication in IP network per"orming similar "unctions as #-# $he thesis particularly aims at designing a 3G&IP gateway which is roust and e/cient enough to support oth IP and 3G technologies and to handle incredily high call tra/c# 0lthough 3G&3* protocol stack is su/ciently e/cient enough "or handling a single call session, translating #- messages into P12 inary stream (and vice versa) and per"orming media packets multiplexing and demultiplexin g consume !uite a huge amount o" system resources i" 3G&3* is mer ged in a gateway env ir onment ("or handlin g many cal ls concurre ntly )# $hese avoi dal e operat ions decrease the whol e system per"ormance and create a per"ormance ottleneck and also leave rooms "or researchers to solve these prolems# In order to "ulll the re!uirements o" uilding a highly roust and e/cient gate way and overcomin g the men tion ed per "ormance ottleneck, some innovative ideas have een proposed and analy4ed in the thesis# $hese ideas are rie5y introduced as "ollow6
