TR35 Jaiganesh Balakrishnan Final
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The document discusses multi-band OFDM ultra wide band (UWB) communication systems for high speed wireless personal area networks. It describes how the multi-band OFDM technology addresses challenges faced by UWB devices by using multi-banding and OFDM to provide spectral flexibility and worldwide regulatory compliance. It was standardized by the WiMedia Alliance and approved in the ECMA-368 standard, leading to products incorporating the technology and interest from the academic community.
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TR35 Jaiganesh Balakrishnan Final
- 1. Jaiganesh Balakrishnan (Texas Instruments) Multi-band OFDM Ultra Wide Band (UWB) Communication System for High Speed Wireless Personal Area Networks (WPAN).
- 2. Multi-band OFDM UWB System (1) In 2002, FCC opened up the spectrum from 3.1 – 10.6 GHz to allow low power UWB devices. Opportunity for high data rate communication (> 100 Mbps) over short distances (up to 10 meters) for WPAN applications. Challenges: (1) World-wide regulatory compliance (2) Wide-band processing (3) Low cost solution (4) Low transmit power (5) Multi-path performance and (6) Co-existence
- 3. The multi-band OFDM technology addressed the challenges faced by UWB devices and shifted focus away from traditional impulse radio systems. Multi-banding and OFDM provided spectral flexibility enabling world-wide regulatory compliance. Time Frequency Coding addressed the issue of wide-band processing while simultaneously enhancing performance. Innovative signal structure using OFDM, enabled excellent multi-path performance, albeit at a low implementation complexity. Multi-band OFDM UWB System (2)
- 4. The Multi-band OFDM system has been standardized by the WiMedia Alliance, approved by ECMA International and published as the ECMA-368 standard. A number of products incorporating the Multi-band OFDM UWB technology have started hitting the market. Wireless USB Wireless HDMI Evinced keen interest in the academic community leading to numerous research publications. Multi-band OFDM UWB System (3)