Selecting the 802.16 OFDM Demodulator
(option B7S or B7Y only)
sets the VSA to demodulate 802.16 OFDM Orthogonal Frequency Division Multiplexing: OFDM employs multiple overlapping radio frequency carriers, each operating at a carefully chosen frequency that is Orthogonal to the others, to produce a transmission scheme that supports higher bit rates due to parallel channel operation. OFDM is an alternative tranmission scheme to DSSS and FHSS. modulated signals that conform to the one of the available Standard formats: IEEE Institute of Electrical and Electronics Engineers. A US-based membership organisation that includes engineers, scientists, and students in electronics and related fields. The IEEE developed the 802 series wired and wireless LAN standards. Visit the IEEE at http://www.ieee.org STD 1) abbrevation for "standard" or 2) Selective Transmit Diversity: A transmit diversity technique using multiple base stations to originate the signal and provide spatial diversity on the downlink. In STD, the transmitter selection is based on a QoS measurement made at the mobile station. See also transmit diversity, TDTD and TSTD. 802.16a 2003 or IEEE STD 802.16 2004 OFDM.
For more information on IEEE 802.16a/d modulation, see 802.16 OFDM Overview.
After selecting the demodulator the configuration parameters must be set. They can be set by selecting one of the available Standard Presets or manually from the IEEE 802.16 OFDM Demod Properties dialog box.
For more information, review the Setting up a 802.16 OFDM Measurement.
Example recordings
The 89600 VSA includes several example 802.16 OFDM signals that can be used to help you learn how to use the IEEE 802.16 OFDM demodulator. The included signals are listed in the Demo and Recorded Signals topic in the Getting Started book.
See Also
