Document Type
Patent
Publication Date
November 2014
Patent Number
8891430
CPC
H04L 25/03828(20130101), H04L 5/0007(20130101), H04L 27/2647(20130101)
Abstract
Various methods and systems are provided for edge windowing of orthogonal frequency division multiplexing (OFDM) systems. In one example, among others, a method includes obtaining an edge windowing portion by reducing a cyclic prefix size for a quantity of edge subcarriers in an OFDM symbol and reducing side lobes by applying a windowing function to the edge subcarriers. In another example, a device includes a separator capable of dividing subcarriers of an OFDM symbol into first and second subcarrier groups, a first CP adder capable of obtaining a windowing portion by adjusting a cyclic prefix size of the first subcarrier group, and a first windower capable of reducing side lobes by applying a windowing function to the first subcarrier group. In another example, a method includes determining a RMS delay spread of a mobile station and scheduling a subcarrier based at least in part upon the RMS delay spread.
Application Number
14/047,150
Recommended Citation
Sahin, Alphan and Arslan, Huseyin, "Edge windowing of OFDM based systems" (2014). USF Patents. 170.
https://digitalcommons.usf.edu/usf_patents/170
Assignees
University of South Florida
Filing Date
10/07/2013
Primary/U.S. Class
370/312
