Efficient inner-receiver design for OFDM-based WLAN systems: Algorithm and architecture

Abstract

In this article we propose a complete solution for the so-called Inner Receiver of an OFDM-WLAN system based on the IEEE 802.11a standard. Our work has been divided into two parts. In this Part – I we concentrate our investigations on three key components forming the Inner Receiver namely, the Synchronizer, the Channel Estimator and the Digital Timing Loop. The main goal is the joint optimization of the signal processing algorithms along with the implementation friendly VLSI architecture required for these three key components in order to reduce power, area and latency, without compromising the performance excessively. We provide both the mathematical details and extensive computer simulations to validate our proposals.

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