User's Manual

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Appendix C:
300Mbps Wireless N NAS Rout
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Appendix C: Glossary
802.11b: The 802.11b standard specifies a wireless networking at 11 Mbps using
direct-sequence spread-spectrum (DSSS) technology and operating in the unlicensed radio
spectrum at 2.4GHz, and WEP encryption for security. 802.11b networks are also referred to
as Wi-Fi networks.
802.11g: Specification for wireless networking at 54 Mbps using direct-sequence
spread-spectrum (DSSS) technology, using OFDM modulation and operating in the
unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b devices,
and WEP encryption for security.
802.11n: 802.11n builds upon previous 802.11 standards by adding MIMO (multiple-input
multiple-output). MIMO uses multiple transmitter and receiver antennas to allow for
increased data throughput via spatial multiplexing and increased range by exploiting the
spatial diversity, perhaps through coding schemes like Altamonte coding. The Enhanced
Wireless Consortium (EWC) was formed to help accelerate the IEEE 802.11n development
process and promote a technology specification for interoperability of next-generation
wireless local area networking (WLAN) products.
DDNS (Dynamic Domain Name System): The capability of assigning a fixed host and
domain name to a dynamic Internet IP Address.
DHCP (Dynamic Host Configuration Protocol): A protocol that automatically configure
the TCP/IP parameters for the all the PC(s) that are connected to a DHCP server.
DMZ (Demilitarized Zone): A Demilitarized Zone allows one local host to be exposed to
the Internet for a special-purpose service such as Internet gaming or videoconferencing.