Title :
Experimental evaluation of service area in wireless service over IP systems
Author :
Fujisawa, Yukihiro ; Higashino, Takeshi ; Tsukamoto, Katsutoshi ; Komaki, Shozo
Author_Institution :
Osaka Univ., Osaka
Abstract :
This paper proposes a new type of wireless services over IP networks (WoIP), which enable voice communication sessions among mobile terminals with different types of air-interfaces. A SIP (session initiation protocol) server administrates the sessions, and realizes a call between WLAN (wireless LAN) and PHS (personal handy-phone system) terminals via IP network. Their service areas are experimentally evaluated in not only propagation loss but also MOS (mean opinion score) of voice quality. The results show that PHS has the wider area than WLAN, and an effect of service area extension for WLAN system using LCX (leaky CoaXial cable) is experimentally investigated.
Keywords :
IP networks; wireless LAN; mean opinion score; mobile terminals; session initiation protocol server; wireless LAN; wireless services over IP networks; Access protocols; Coaxial cables; Communication system control; Convergence; IP networks; Mobile communication; Network servers; Propagation losses; Wireless LAN; Wireless application protocol; Leaky coaxial cable; SIP; Voice over PHS; Voice over WLAN; Wireless service area;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429478
