Title :
A design and implementation of ASIC for high-quality VoIP terminal over wireless LAN
Author :
Kim, Do Young ; Park, Jong Won
Author_Institution :
Electron. & Telecommun. Res. Inst.
Abstract :
This paper describes on a design and implementation of ASIC to integrate with high-quality voice over wireless LAN for the application of hand-held terminal, which is based on the wideband speech codec algorithm and IEEE 802.11e-based QoS mechanism. The target of this work mainly focused on the single chip integration for VoIP terminal providing the differentiated high-quality Internet telephony service through wireless LAN. In the design of ASIC, ARM926EJ is adopted for a high-performance single RISC core to remove additional high-cost DSP device. Also wireless MAC and PHY layer based on IEEE802.11a, b, and g had designed and implemented on this device
Keywords :
DiffServ networks; Internet telephony; application specific integrated circuits; quality of service; speech codecs; wireless LAN; ASIC; IEEE 802.11e; PHY layer; QoS mechanism; VoIP terminal; differentiated service; hand-held terminal; high-quality Internet telephony; wideband speech codec; wireless LAN; wireless MAC; Application specific integrated circuits; Bit rate; Delay; Internet telephony; Quality of service; Scalability; Speech codecs; Wideband; Wireless LAN; Wireless networks; ASIC; Codec; Core; LAN; Processor; QoS; Terminal; VoIP; Wideband; Wireless;
Conference_Titel :
Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference
Conference_Location :
Phoenix Park
Print_ISBN :
89-5519-129-4
DOI :
10.1109/ICACT.2006.206303
