Parameter estimation and data detection in OFDMA systems.
Published: 2006
Language: eng
Number of pages: 61
ISBN-13: 9780494211342
Description: In the estimation stage, three training schemes are proposed to estimate CFO, PHN and channel response in OFDMA. Our contribution is to extend a previously derived single user CFO, PHN and channel estimation algorithm into the multiuser environment by applying the EM algorithm.This thesis considers the issue of parameter estimation and data detection in OFDMA systems. Analysis in previous works have shown that carrier frequency offset (CFO) and phase noise (PHN) have a very damaging effect in OFDMA systems. In order to mitigate their effects, a two-stage receiver is proposed.In the detection stage, using the CFO and channel estimates from the estimation stage, a joint PHN estimation and data detection algorithm is proposed by applying the multi-stage interference cancelation technique.
Notes: Source: Masters Abstracts International, Volume: 45-03, page: 1605.

Thesis (M.A.Sc.)--University of Toronto, 2006.

Electronic version licensed for access by U. of T. users.

ROBARTS MICROTEXT copy on microfiche.