Wireless personal testbeds


Acronyms and Definitions of Technical Terms


Cellular technologies, including GSM, CDMA and WCDMA


Code division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA employs spread-spectrum technology and a special coding scheme (where each transmitter is assigned a code) to allow multiple users to be multiplexed over the same physical channel.


Coded Orthogonal Frequency Division Multiplexing (COFDM)

A form of modulation which is particularly well-suited to the needs of the terrestrial broadcasting channel. COFDM can cope with high levels of multipath propagation, with a wide spread of delays between the received signals. This leads to the concept of single-frequency networks in which many transmitters send the same signal on the same frequency, generating “artificial multipath”. COFDM also copes well with co-channel narrowband interference, as may be caused by the carriers of existing analog services.


Global Positioning System


Long Term Evolution (LTE), a mobile network technology standard


Multiple-input and Multiple-output. Wireless radio technology in which multiple transmitters and receivers are used at both the source (transmitter) and the destination (receiver).


Over The Air; refers to test methodology of testing fully assembled devices through their antennas