T
Timothy A. Thomas
Researcher at Motorola
Publications - 97
Citations - 5439
Timothy A. Thomas is an academic researcher from Motorola. The author has contributed to research in topics: Communication channel & Orthogonal frequency-division multiplexing. The author has an hindex of 35, co-authored 97 publications receiving 5193 citations. Previous affiliations of Timothy A. Thomas include Nokia Networks & Nokia.
Papers
More filters
Patent
Method and apparatus for performing stream weighting in an sdma communication system
TL;DR: In this paper, a method and apparatus for performing stream weighting in a spatial-division multiple access (SDMA) communication system is presented, where the base station receiver receives channel information from mobiles and calculates transmit antenna weights that maximize the power delivered to each mobile while allowing for a small amount of crosstalk to exist between users.
Title GCL Sequences for Uplink Channel Sounding in TDD OFDMA Date Submitted
TL;DR: This contribution proposes GCL sequences for use by the uplink channel sounding methodology described in Contribution C802.16e-04/263r1: “Uplink Channel Sounding for TDD-OFDMA”.
Proceedings ArticleDOI
An Experimental 8x8 System Used to Characterize the Spatial Channel at 3.5 GHz
TL;DR: Key components and parameters of this system are described and the spatial characteristics uncovered from the collected field data are described.
Proceedings ArticleDOI
User Selection for SDMA Beamforming with Imperfect CSI in MIMO-OFDM Systems
TL;DR: This paper considers exploiting multi-user diversity in a unique and practical setting that includes - significant transmit correlation, a broadband channel using OFDM, and imperfect CSI at the transmitter derived from channel reciprocity techniques.
Title Signaling Methodologies to Support Closed-Loop Transmit Processing in TDD-OFDMA Date Submitted
TL;DR: Optional signaling enhancements to support downlink closed-loop transmission techniques in TDD OFDMA systems and patents essential for compliance with both mandatory and optional portions of the standard.