Carrier frequency offset estimation in multiuser simultaneous channel access for MIMO-OFDM based WLANs

Narayanaswamy, KV and Kurahatti, NG and Srinivas, T (2006) Carrier frequency offset estimation in multiuser simultaneous channel access for MIMO-OFDM based WLANs. In: 2006 IFIP International Conference on Wireless and Optical Communications Networks, 11 April 2006, India.

PDF fif_int_con_wir_opt_com_net_2006.pdf - Published Version Restricted to Registered users only Download (2MB) | Request a copy

Abstract

The goal of this paper is to propose a method for carrier frequency offset estimation in a scenario where multiple users upload to a central coordinator simultaneously. OFDM based systems are highly prone carrier frequency offsets. The CFO estimation method proposed here is performed in time domain thereby facilitating a reduction in complexity at the central coordinator. The estimator makes use of the orthogonal training sequences that were transmitted by the different users. It is shown that the resulting CFO estimator is optimal not only in the sense that it minimizes the estimation error variance due to inter carrier interference. © 2006 IEEE.

Item Type:	Conference Paper
Publication:	2006 IFIP International Conference on Wireless and Optical Communications Networks
Publisher:	IEEE Computer Society
Additional Information:	The copyright of this article belongs to IEEE Computer Society
Keywords:	Channel state information; Error analysis; Optimization; Orthogonal frequency division multiplexing; Signal interference; Wireless local area networks (WLAN), Carrier frequency; Frequency offset estimation; Multiple users upload; Orthogonal training sequences, Frequency estimation
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	21 Aug 2020 09:20
Last Modified:	21 Aug 2020 09:20
URI:	http://eprints.iisc.ac.in/id/eprint/66229

Actions (login required)

View Item