User's Manual

Nexxt Solutions - ACRUX - Wireless N Gigabit Router

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Appendix D: Glossary

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 Alamouti coding.

The Enhanced Wireless Consortium (EWC) [3]

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.

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.

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 con-

nected to a DHCP server.