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IMPLEMENTATION OF IEEE 802 . 11 B WIRELESS LAN STANDARD

Software-Defined Radio (SDR) is a rapidly evolving technology that is receiving enormous recognition and generating widespread interest in the telecommunication industry. Over the last few years, analog radio systems are being replaced by digital radio systems for various applications in military, civilian and commercial areas. In addition to this, programmable hardware modules and high performance Digital Signal Processors (DSPs) are increasingly being used in digital radio systems at different functional levels. SDR technology facilitates implementation of some of the functional modules in a radio system such as modulation/demodulation, coding, signal generation, and link-layer protocols in software. This helps in building reconfigurable software radio systems where dynamic selection of parameters for each of the abovementioned functional modules is possible. A complete hardware based radio system has limited utility since parameters for each of the functional modules are fixed. A radio system built using SDR technology extends the utility of the system for a wide range of applications that use different protocols and modulation/demodulation techniques. In this paper, we discuss the software implementation details of IEEE 802.11b Wireless LAN (WLAN) standard on Texas Instruments’ TMS320C6416 DSP based hardware platform.