Event Details
Design of a Fixed-Point Polar Receiver for OFDM-Based Wireless LAN
Presenter: Amro Altamimi
Supervisor: Dr. Daler Rakhmatov, Co-supervisor: Dr. Michael McGuire
Date: Thu, December 2, 2010
Time: 11:30:00 - 12:30:00
Place: EOW 230
ABSTRACT
Abstract:
This thesis presentation studies implementation-related issues in OFDM-based digital receivers. The IEEE 802.11a WLAN standard is used as a specific wireless technology, where the data rate ranges from 6 Mbps to 54 Mbps. The goal is to expose and exploit the possibility of scaling the receiver computational complexity in relation to variable data rate requirements. To facilitate such computational scalability, The use of the polar coordinates during data processing in the frequency domain is proposed and evaluated. The impact of various fixed-point precision settings are also evaluated during data processing in both the time domain and the frequency domain. While evaluating different fixed-point precision settings, it was found that simulation times were prohibitively long. To address this issue, an alternative 5-step simulation procedure is proposed that significantly reduces the simulation time needed to evaluate a number of fixed-point setting options.