Browsing by Author "Chen, Lei-Fone"

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A channel equalizer design for COFDM system
(2006)
Ma, Ying-Hao
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Chen, Lei-Fone
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Lee, Chen-Yi
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電子工程學系及電子研究所
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Department of Electronics Engineering and Institute of Electronics
In COFDM receiver, the full time operation equalizer is the first stage of data recovery. Since the performance of equalizer will influence the overall system performance, the hardware cost and power consumption of equalizer may not be the first issue in existing designs. In this paper, we propose an approach of equalizer for COMM broadcasting systems. This equalizer is optimized for hardware cost, and power consumption without performance lost. Comparing with existing design for 0.18um. process, the proposed design area is reduced to 9.5% and the power consumption is reduced to 30.1% of division-based equalizer, respectively.
Design of a DVB-T/H COFDM receiver for portable video applications
(2007-08-01)
Chen, Lei-Fone
;
Lee, Chen-Yi
;
電子工程學系及電子研究所
;
Department of Electronics Engineering and Institute of Electronics
Mobile video services have generated a lot of interest recently. To reach a cost-effective solution, design trade-offs among system performance, hardware complexity, and power consumption must be considered in the early design phase of such applications. In this article, we present a system overview, simulation platform, and hardware design of a DVB-T/H baseband receiver. Starting with a design platform, several algorithms on both inner and outer receivers are developed to meet target system performance under different channels. Then, system architecture and related key modules are explored, taking into account both silicon area and power consumption. Finally, several design issues related to the integration of the proposed DVB-T/H inner and outer receivers are addressed.