Wireless LAN White Papers

Development of an OFDM Based High Speed Wireless LAN Platform Using the TI C6x DSP

Overview Coded Orthogonal Frequency Division Multiplexing (COFDM) is currently specified in all three of the world's 5 GHz wireless LAN standards (Hiperlan/2, IEEE 802.11a and MMAC HiSWANa). This technology was chosen due to its robustness at high data rates in a frequency selective multipath channel. Each standard operates using adaptive sub-band Quadrate Amplitude Modulation (QAM) and offers a maximum data rate of 54 Mbits/s over a 20 MHz channel. This paper describes a real-time DSP implementation of an asynchronous OFDM based high speed WLAN system. The software reconfigurable OFDM based platform is developed around the Texas Instruments fixed point TMS320C6201 DSP. The physical layer DSP performance is evaluated and compared for an indoor channel against floating point C++ based simulations.

Further White Paper Details
PublisherInstitute of Electrical and Electronics Engineers File FormatPDF
Date PublishedMarch 2006
FormatWhite Papers   
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